Articles (389)
| Title | Author(s) | Publication | Date |
|---|---|---|---|
| “You Are in a Maze…” “…of twisty little passages, all alike.” This message, in Adventure of Zork, tells you that you have embarked on one... | SYNC | November/December 1981 | |
| [Break Out of Program Expecting Input] How to break out of programs stuck in loops that expect numeric or character input. | Syntax | February 1981 | |
| [Computer Software Act of 1980] Congress passed the Computer Software Act of 1980 to protect the rights of people and companies who write, develop, sell,... | Syntax | March 1981 | |
| [Cut RF interference to the ZX80] | Syntax | September 1981 | |
| [Dann Weldkamp would like to hear …] Reader in Iowa. | Syntax | August 1981 | |
| [If you have a logic probe … ] Use logic probe to record state of ICs in the computer. | Martin Irons (K2MI) | Syntax | September 1981 |
| [MicroAce Owners…] Sinclair’s owner’s manual is available by mail from Sinclair Research. | Syntax | April 1981 | |
| [Rochester Institute of Technology offers two intensive computer courses for deaf adults…] | Syntax | June 1981 | |
| [The 8K ROM produces a different screen display than the 4K ROM.] | Syntax | June 1981 | |
| [The following SYNTAX readers wish to contact …] Readers from Califonia, Florida, Illinois, Maryland. | Syntax | September 1981 | |
| [These readers would like to contact others…] Readers in Illinois and Ontario. | Syntax | April 1981 | |
| [These readers would like to hear …] Readers in California and Texas. | Syntax | May 1981 | |
| [These SYNTAX readers would like to contact …] Readers from Louisiana and Nebraska. | Syntax | October 1981 | |
| [These SYNTAX readers would like to hear …] Readers from Kentucky, Nevada and Ontario. | Syntax | July 1981 | |
| [These SYNTAX readers would like to hear from others in their areas] Readers from Ohio, New York and Washington, DC. | Syntax | March 1981 | |
| [These SYNTAX readers would like to hear…] Readers from California and Texas. | Syntax | June 1981 | |
| [Would you like a ZX80 interface to the outside world?] | Syntax | September 1981 | |
| 16K RAM Approved; New Interface Federal Communications Commission (FCC) approved Sinclair’s 16K RAM for the U.S. market. C.A.I. Instruments has completed work on three interfaces. | Syntax | January 1981 | |
| 30 Programs for the Sinclair ZX-80 – a Review 30 Programs for the Sinclair ZX-80, by Melbourne House, Glebe Cottage, Glebe House, Station Road, Cheddington, Leighton Buzzard, Bedfordshire, England,... | SYNC | January/February 1981 | |
| 4K Programs on 8K ROM 8K ROM won’t load 4K tapes. | Syntax | June 1981 | |
| 4K RAM Units Available Soon Static Memory Systems will sell 4K RAM packs for ZX80s and MicroAces. | Syntax | July 1981 | |
| 4K ROM Listing – Initialization Computer initialization routine in 4K ROM. | Syntax | June 1981 | |
| 4K ROM: Display Routine DISPLAY begins the 4K ROM’s input/output module at 013Ch, or 316d. | Syntax | August 1981 | |
| 6th Computer Faire Super Invasion for the ZX80 from SoftSync shown at the faire, along with Double Breakout. | Creative Computing | July 1981 | |
| 8K Basic ROM While the 4K Integer Basic in the Sinclair ZX80 is adequate for many applications, most programmers will eventually feel a... | SYNC | July/August 1981 | |
| 8K Basic ROM and 16K-Byte RAM Pack Specifications | SYNC | May/June 1981 | |
| 8K ROM Changes Revisions to previous programs for 8K ROM. | Syntax | June 1981 | |
| 8K ROM Monitor Routines Continuation of article from prior issue examining the 8K ROM. | Syntax | October 1981 | |
| 8K ROM Printer Commands LLIST — Lists to printer instead of screen, LPRINT — Directs output to printer instead of screen, COPY — Outputs... | Syntax | April 1981 | |
| 8K ROM Update Sinclair now has another source of 8K ROMs. According to Nigel Searle, the new manufacturer will deliver by September 1... | Syntax | September 1981 | |
| 8K ROM, 16K RAM Updates 8K ROMs will arrive in late February. RAMs, no firm date. | Syntax | February 1981 | |
| 8K ROMS, New Machine from MicroAce MicroAce will sell 8K ROMs for MicroAce and ZX80 computers within 8 weeks, according to Chris Cary, head of Compshop,... | Syntax | May 1981 | |
| 8K Syntactic Sum Modified version for 8K ROM. | Syntax | June 1981 | |
| A British computer hits it big In the consumer electronics industry, Clive Sinclair is known worldwide as a phenomenally creative inventor whose marketing fiascoes have more... | Business Week | November 16, 1981 | |
| A Night in Las Vegas Review of the cassette from Lamo-Lem. | Syntax | October 1981 | |
| A Parallel Interface for the ZX-80/MicroAce Computer Construct a simple parallel interface for the ZX80/MicroAce computers with the Z-80 PIO. | SYNC | July/August 1981 | |
| A Subroutine for Serial Data Output Trying to write machine code subroutines for the ZX80 presented some problems. This article details the problems with their solutions,... | SYNC | July/August 1981 | |
| A Tool to Help Debug Programs To determine what occurs during a loop portion of a malfuntioning program, use a PRINT statement called a flag. | Syntax | October 1981 | |
| A Trick and a Graphic System | SYNC | May/June 1981 | |
| A Weekend With the ZX-80 I have always been intimidated by computers, and mathematics in general. One look at the Sinclair ZX-80, and I was... | SYNC | January/February 1981 | |
| Acey Ducey This simulation of the Acey Ducey card game. In the game, the dealer (the computer), deals two cards face up.... | David Lubar | SYNC | January/February 1981 |
| Adding an LED Load Monitor to the ZX80 Single LED (light emitting diode) added to the tape “ear” input of the computer. The voltage for lighting the LED... | SYNC | January/February 1981 | |
| Addition Through 7 Digits Add 7 digit numbers as long as the total doesn’t exceed 7 digits. | Syntax | February 1981 | |
| All-Purpose Beeper Circuit to emit a “beep” every time your ZX80 or MicroAce reads from or writes to a selected memory address. | Syntax | June 1981 | |
| An Interview with Alfred Milgram Alfred Milgram, president of Melbourne House and David Ahl chat about the ZX80, Sinclair Research, and two new books. | SYNC | March/April 1981 | |
| An Introduction to Machine Code The ZX80/1 microcomputer system as supplied by Sinclair Research is capable of being programmed in two different languages, i.e., Basic... | SYNC | November/December 1981 | |
| An Inventory System Mass data storage is accomplished more efficiently by a disc system than by a cassette recorder. However, until such a... | SYNC | November/December 1981 | |
| Annotated 4K ROM Listing The 4K ROM SAVE routine listing, including the original designer’s notes. | Syntax | May 1981 | |
| Annotated 4K ROM Listing – Systems Variables Listing tells you the values of all major variables used in the 4K ROM. | Syntax | October 1981 | |
| Annotated 4K ROM: LOAD Routine Assembly for the 4K ROM’s LOAD routine. LOAD begins in ROM location 0206H, or 518d. | Syntax | July 1981 | |
| Artillery | SYNC | March/April 1981 | |
| Artillery with Motion Improved version of Artillery. | SYNC | November/December 1981 | |
| Atmospheric Perturbation? Letter defending the ZX80 as reviewed by John Palmer. | Dr. Dobb’s Journal | April 1981 | |
| Auto-Display-Changing How Is It Done? A series of articles. | SYNC | May/June 1981 | |
| Automatic Recorder Control Call the LOAD routine directly. | Syntax | May 1981 | |
| Bar Graphics This program, written for a 2K MicroAce, draws bar charts on a white background with dark defined lines and a... | Syntax | April 1981 | |
| Basic Salary Scheduling Calculate salaries that increment on a straight-line basis. | Syntax | January 1981 | |
| Beginner’s Column – Error Codes and Debugging Programs One of the ZX80/MicroAce’s nicest features keeps you from entering lines with syntactic errors into a program. | Syntax | April 1981 | |
| Beginner’s Loading ML Programs Learn how to put machine language (ML) programs into your computer. | Syntax | August 1981 | |
| Beginner’s ROM and RAM Addresses ROM and RAM addresses in 4K ROM, 1K RAM machines. | Syntax | May 1981 | |
| Beginners – Analyzing the Problem The first step in solving a problem with a computer is analyzing how you would solve it without one. | Syntax | July 1981 | |
| Beginners: User-Friendly Programs Some easy programming methods to write user-friendly programs for either 4K or 8K ROM programs. | Syntax | October 1981 | |
| Beginners’ Column: REM Revisited Storing machine code in REM statements. | Syntax | November 1981 | |
| Beginners’ Computing Magazine OnComputing changes its name to Popular Computing. | Syntax | June 1981 | |
| Bingo Number Generator Generates numbers with their preceding letters and prints them at 8x their normal size at the top of the screen. | Syntax | October 1981 | |
| Bisection Interation Square Root Program This program operates by means of bisection iteration, which is basically just a variation of the old high-low game. The... | SYNC | July/August 1981 | |
| Black Hole Game based on an Elf (RCA 1802) machine language program. | SYNC | May/June 1981 | |
| Boston Show Surveyed The tiny Sinclair ZX80 was a popular item. Sinclair’s Nigel Searle was pleased with its present sales and is making... | Infoworld | January 19, 1981 | |
| British company announces inexpensive computer: The Sinclair ZX81 will sell for $149.95 BOSTON, MA – Sinclair Research, Ltd., a British company that makes the low-cost ZX80 personal computer, has announced its latest... | Infoworld | November 2, 1981 | |
| Bubble Sort Routine Sorts numbers into ascending order. | Syntax | January 1981 | |
| Build Additional RAM How to upgrade the ZX80 to 8K RAM. | Syntax | March 1981 | |
| CAI Peripherals Update CAI Instruments will ship their first Widgets the week of Sept. 21. | Syntax | October 1981 | |
| CAI Printer Update CAI Instruments will offer software components to make their Widget printer compatible with both 4K and 8K ROMs. | Syntax | August 1981 | |
| CAI Ships Widgets At press time, CAI’s Bob Swann confirmed reader reports- 100’s of Widgets shipped. Expect printers in 2 wks, tape drives... | Syntax | November 1981 | |
| CAI Update CAI Instruments is almost ready with their Widget series peripherals for ZX80s and MicroAces. | Syntax | June 1981 | |
| Cannonade In Cannonade you are the commander (choose your own rank) of a squad of six men. You have been given... | SYNC | September/October 1981 | |
| Castle Doors Castle doors is an adventure game that presents a new challenge with each playing, and the opportunity for easy adjustment... | SYNC | January/February 1981 | |
| Changes to Amazing Active Display John Sampson of College Point, NY, called in response to the letter in the Oct. 81 issue about The Amazing... | Syntax | November 1981 | |
| Changes to September Budget Program User interface changes to the program. | Syntax | October 1981 | |
| Changes to Super ZX80 Invasion Add new levels of difficulty. | Syntax | October 1981 | |
| Chart Your Biorhythms Program for 8K ROM machines graphically displays your emotional, intellectual and physical cycles. | Syntax | January 1981 | |
| Check Your Voltage Check cassette voltage level if you experience problems loading. | Syntax | May 1981 | |
| Chest of Classics by Lamo-Lem Review of the programs from Lamo-Lem. | Syntax | April 1981 | |
| Coming to Terms Response to Langdon Proctor’s letter. | Dr. Dobb’s Journal | June 1981 | |
| Computer Models Programming tutorial on calculating buinsess models wide variety of cases. | Syntax | January 1981 | |
| Computer Number Systems Introduction to binary with programs to convert from decimal to binary and binary to decimal. | Syntax | February 1981 | |
| Computer Number Systems II Examines hexadecimal system. | Syntax | March 1981 | |
| Computer Number Systems III Article looks at octal numbers. | Syntax | April 1981 | |
| Continuous Display Utility Want a flicker-free screen? JRS Software now offers software for continuous display. | Syntax | September 1981 | |
| Converting From Other Basics While Basic is a distinct computer language , it exists in many forms. Thus, a program written for another machine... | SYNC | January/February 1981 | |
| Cosine Functions on 4K ROM | Syntax | September 1981 | |
| Crash Course in Microcomputers Review of the book by Louis Frenzel. | Syntax | October 1981 | |
| Create a Word Search Puzzle By using this program in the ZX80 or MicroAce, you can create your own 15 by 11 character word puzzles... | SYNC | November/December 1981 | |
| Credit Due to Personal Computer World Follow-up to December 1980 review of ZX80, noting it was a reprint of an article from Personal Computer World, a... | Creative Computing | February 1981 | |
| Data Dubber The Peripheral People offer a device to help you LOAD and SAVE cleanly. | Syntax | September 1981 | |
| Data File Format Here’s a program for 2K MicroAces that allows you to create indexed files on tape. | Syntax | August 1981 | |
| DATA Statement Simulation | SYNC | March/April 1981 | |
| Dateline:Tomorrow: Naked MicroAce On the Way. Also ZX81 We hear that the MicroAce II will be announced shortly. It will have a full-stroke keyboard, possibly 16K of on-board... | Creative Computing | July 1981 | |
| Dealing Out a Conversion Sinclair owners will probably spend a fair amount of time converting programs from other Basics. This can be a rewarding... | SYNC | January/February 1981 | |
| Dear Editor Letters about magazine index; resistor values; ordering from England; errors in books; TV interference; bad connections; memory problems; replacement parts. | Syntax | October 1981 | |
| Dear Editor Letters about 4K ROM; tape recorders; modifying the ZX80 cursor; TV interference. | Syntax | September 1981 | |
| Dear Editor Letters about languages other than BASIC; Syntactic Sum; stereo cassette players; MicroAce kit; hardware changes voiding warranty; constructing characters that... | Syntax | August 1981 | |
| Dear Editor Letters with improvements programs; corrections; math error in 8K ROM; converting 4K ROM programs to 8K ROM; ZX80 users online. | Harold Lamkin Alan Gayle David Shulman Martin Irons (K2MI) Warren Schoettlin Robert Keller | Syntax | July 1981 |
| Dear Editor Letters about new 8K ROM features; keyboard problems; video blanking; building additional RAM; interfacing to real world; improvements to bar... | Syntax | June 1981 | |
| Dear Editor Letters about adapting the ZX80 to work worldwide; beginner questions about programming; request for 8K ROM listing; recorders. | Syntax | May 1981 | |
| Dear Editor Letters about interference; saving bytes; additional RAM; static electricity; MicroAce issues. | Syntax | April 1981 | |
| Dear Editor Letters about Syntactic Sum; contact info for vendors; schematics; source of 8K ROMs. | Syntax | March 1981 | |
| Dear Editor Letters about issues assembling MicroAce; tv/cassette player placement; adapting programs; reverse video; cassette eavesdropper; amateur radio operators. | John Walsh John Sampson Colin Alexander Bill Cotham Bill Eder Martin Irons (K2MI) | Syntax | February 1981 |
| Dear Editor Letters asking about Canadian suppliers; problems entering programs; interference on TVs; tape recorders. | Syntax | January 1981 | |
| Dear Editor ZX-Microfair in London; Microace 8K ROM has bugs; Microace regulator; floating point in 8K ROM. | Syntax | November 1981 | |
| Dear Sinclair Research It is with great displeasure that I am returning my Sinclair ZX80. Response from Nigel Searle. | Syntax | November 1981 | |
| Defuse You are the Chief of Security in a major government building. You have just received a telephone message from a... | SYNC | September/October 1981 | |
| Detective A murder has been committed and the perpetrator has threatened to strike again! It is up to you to uncover... | SYNC | July/August 1981 | |
| Digital Clock This program operates as a digital clock, showing A.M. or P.M. and changing at 12:00. | Syntax | November 1981 | |
| Disassembled BASIC – A Review Linsac has published a disassembled listing of the Sinclair Basic. | SYNC | March/April 1981 | |
| Draw a Picture Simple program from 30 Programs for the ZX-80. | SYNC | January/February 1981 | |
| Editor’s Notebook: Report from Chicago CES Sinclair announced the ZX-81, an improved version of the popular $200 ZX-80, and a $100-odd flatscreen pocket TV, and hinted... | Interface Age | September 1981 | |
| Editorial The Sinclair ZX80 is the new kid in town; a short-lived position in this rapidly changing field. In the past... | SYNC | January/February 1981 | |
| Engineers Get Personal With Computer Engineers and scientists adopt personal computers to replace mainframe time and expense. One GE engineer purchased a Sinclair ZX80 but... | Personal Computing | October 1981 | |
| Estimate Heating Costs Use these 3 programs to estimate heating costs for houses and other small buildings. | Syntax | March 1981 | |
| Examining Prime Numbers: Two Programs The first of the two programs below tests a set of numbers to see which members of the set are... | SYNC | September/October 1981 | |
| Experiments in Memory and I/O Expansion How memory works in the ZX80; adding RAM using 2114 chips; adding I/O; adding RAM using HM6116 CMOS chips. | SYNC | November/December 1981 | |
| EZUG Newsletter The Educational ZX80/1 Users’ Group (EZUG) publishes a newsletter each month for ZX80 users. | Syntax | June 1981 | |
| Find Clean Tape on 8K Quickly find the unused section of tape for SAVEing 8K programs on multi-program tapes on any RAM size. | Syntax | November 1981 | |
| For Syntax Readers Only Sinclair now offers used ZX80s for only $49.95. According to Nigel Searle of Sinclair, most of these machines were sold... | Syntax | August 1981 | |
| Forest Treasure “Forest Treasure” is based upon “Random Graphics” by Gary McGath in the Jan/Feb 1981 issue of SYNC. You are riding... | SYNC | May/June 1981 | |
| Frequency Histogram Program tests how random the ZX80/MicroAce’s random number generator really is. | Syntax | May 1981 | |
| From Other Basics – VAL and LEN ZX80 Basic substitutions for LEN and VAL functions. | Syntax | September 1981 | |
| Full Annotated 4K ROM Listing Sinclair’s complete 4K ROM listing with original designer’s annotations will be available from SYNTAX by August. | Syntax | July 1981 | |
| Game of Life | SYNC | March/April 1981 | |
| Gauntlet Gauntlet is a game played on a rectangle 19 spaces by 6 spaces. The object is to run a gauntlet... | SYNC | May/June 1981 | |
| Glitchoidz Report Corrections to errors, problems and other Glitchoid activities discovered in prior articles. | SYNC | July/August 1981 | |
| Glitchoidz Report | SYNC | September/October 1981 | |
| Glitchoidz Report Corrections to Widget (Sync v1 n2), Looking inside the ZX80 (v1 n3), A Trick and a Graphic System (v1 n3),... | SYNC | November/December 1981 | |
| GRA+PIX: A System for Pixel Graphics The following article describes a set of subroutines for drawing lines, arcs, regular geometric shapes, and sectors on the Sinclair... | SYNC | September/October 1981 | |
| Gradebook for Teachers Program helps teachers average grades at the end of the grading period. | Syntax | October 1981 | |
| Graphics Surprises When we combine the uncertainty of the ZX80’s randomizing feature with its graphics capacities, we have the ingredients for a... | SYNC | May/June 1981 | |
| Graphics, Games and Gold Graphic adventure game: the hero roams within a randomly generated wood, cave or castle, encountering monsters and treasures. | SYNC | May/June 1981 | |
| Growth Plans and Pains: An Interview with Nigel Searle Nigel Searle [was] Sinclair’s man in Boston. He [was] responsible for operations in the United States and Canada of Sinclair... | SYNC | March/April 1981 | |
| Hammurabi in 1k Player manages an economy. | SYNC | May/June 1981 | |
| Hampson’s Plane Program translates the three dimensional Rubik’s Cube to the two dimensional TV screen via the ZX80. | SYNC | November/December 1981 | |
| Hand-sized $200 home computer The Sinclair ZX80 costs only $200, yet it has the performance of units two or three times as expensive, the... | Popular Science | May 1980 | |
| Handling Character Strings in the ZX80 Using USR(47) to find the address of a string variable and peeks/pokes to manipulate the string. | SYNC | May/June 1981 | |
| Hangman The old game of Hangman can also be played on your ZX80. The program listed below preserves not only the... | SYNC | September/October 1981 | |
| Hangman ZX80 version of the 2 person spelling game, Hangman. | Syntax | May 1981 | |
| Hardware Hints Potential solution to overheating; labeling keys on big keyboards. | Syntax | November 1981 | |
| Hardware Notes Advice on DIP headers; edge connectors; video monitors; reset switch; cassette monitoring. | Syntax | April 1981 | |
| Hardware Report Potential solution to problems with LOAD. | Syntax | September 1981 | |
| Hardware/Briefs MicroAce is now selling a Z80-based small computer kit for $149. The unit, licensed from Sinclair Research, Ltd., includes a... | Infoworld | February 2, 1981 | |
| Hints & Tips For The ZX81 Hints & Tips for the ZX81 by Andrew Hewson is excellent for the average ZX81 user who has little, or... | SYNC | September/October 1981 | |
| Hog Heaven – ROM Entry Points Complete list of global subroutine calls for the 4K ROM’s eigh software modules. | Syntax | April 1981 | |
| Holiday Shoppers’ Guide Sinclair ZX81 among the computers listed. | Personal Computing | December 1981 | |
| How Many Bytes to the Line? Subroutine determines the exact number of bytes used for each line of program instruction as well as an entire program. | Martin Irons (K2MI) | Syntax | January 1981 |
| How to Produce a Display File Using Machine Code In the ZX80 the display file is the part of the RAM which holds the next picture to be shown.... | SYNC | March/April 1981 | |
| Hurkle Game converted to ZX80. | SYNC | January/February 1981 | |
| Improved 4K Sine Calculation Use these lines in 4K programs requiring sines between 0 and 90 degrees. | Syntax | November 1981 | |
| Improving Display One problem with creating graphic displays on the ZX80 is users’ inability to interact with display. This program allows you... | Syntax | August 1981 | |
| In and Out of Machine Language When you use machine language programs, you have no keys to press directly. So we need to tell the machine... | Syntax | August 1981 | |
| Increment, Decrement For-To’s Use LET to increment or decrement loops in 4K BASIC. | Syntax | February 1981 | |
| InfoNews/Software: Super Z Super Z for the ZX80 and MicroAce computers adds seven new statements to Sinclair 4K BASIC: TAB, SCROLL, MEM, PAUSE,... | Infoworld | November 30, 1981 | |
| InfoNews/Software: Super ZX80 Invasion, Double Breakout Super ZX80 Invasion, a 1K game for the Sinclair ZX80 personal computer, has recently been introduced by Softsync, Inc. The... | Infoworld | July 20, 1981 | |
| InfoNews/Software: Wall Busters Wall Busters is a fast computer ball game by Softsync for the 1K Sinclair ZX80 computer. You are challenged to... | Infoworld | November 16, 1981 | |
| InfoNews/Software: ZX80 Business Package The ZX80 Business Package by Lamo-Lem is for the Sinclair ZX80 or MicroAce computers. The package includes Search & Save,... | Infoworld | December 14, 1981 | |
| Input Port Capture data through a port, place it into a CPU register. | Syntax | August 1981 | |
| Interface to the Real World Add an 8-bit latch to the ZX80 or MicroAce, mapped to 3000H (12288). Includes schematic. | Syntax | January 1981 | |
| International Winter Consumer Electronics Show The semi-annual gathering of the manufacturers and retailers, writers and ad reps, innovators and imitators in the consumer electronics industry:... | Creative Computing | March 1981 | |
| Interview with Clive Sinclair Clive Sinclair is the man behind the first mass pocket calculator, the first scientific calculator kit and, now, a mass-market... | SYNC | January/February 1981 | |
| Intro to Machine Language Start of series on machine language programming for beginners. | Syntax | May 1981 | |
| Inverse Big Characters To print 8x size characters in reverse video, change these lines from Big Characters (Dec. 80). | Syntax | November 1981 | |
| Inverse Cryptology Challenging code breaking game for 2 uses 4K ROM and 1K RAM. | Syntax | June 1981 | |
| Key Click Generator This simple circuit will produce an audible tone whenever the ZX80 screen is blanked, yielding a click to indicate key... | SYNC | May/June 1981 | |
| Keyboard Beeper Simple device that beeps when a key is pressed. | SYNC | July/August 1981 | |
| Keyboard Beeper Review of Burnett Electronics’ keyboard beeper. | Syntax | June 1981 | |
| Kitchen Sync Discussion of the ZX80 BASIC expression evaluator. | SYNC | September/October 1981 | |
| Kitchen Sync This month’s column was inspired by two other articles appearing in the May/June issue of SYNC. In the first, David... | SYNC | November/December 1981 | |
| Know Your Gas Hogs Use your ZX80 to compare fuel economies and estimate total gas expenditures. | Syntax | September 1981 | |
| Landing a LEM on the Moon This ZX80 version sets a LEM 2,530 meters above the moon with only 300 liters of fuel. You must land... | Syntax | September 1981 | |
| Letters Our Face is Red!; Four Tips for MicroAce Owners; Channel 2 Interference Problem Cure. | SYNC | March/April 1981 | |
| Letters | SYNC | July/August 1981 | |
| Letters REM on the 4K ROM; Mini-Billboard for 8K ROM; “Bar Charts” and Rubber Cement; Splitting Strings; Short Video Cable; The... | SYNC | September/October 1981 | |
| Letters Thick Black Bars; Help Wanted; Scrolling REM Statements; Cecil Bridges’ LED Load Monitor. | SYNC | November/December 1981 | |
| Light Control Interface Interface Technology will adapt “The Microcommander” to the Sinclair ZX80. | Syntax | January 1981 | |
| Lights of the City This program uses the 8K ROM’s graphics and animation capabilities to generate an ever-changing video pattern like a growing city. | Syntax | January 1981 | |
| Likes the Sinclair ZX80 Letter to the editor: reader takes exception to review in the August 1981 Popular Electronics. | Popular Electronics | November 1981 | |
| Line Renumbering This program renumbers the line numbers in any other program in memory. | Martin Irons (K2MI) | Syntax | May 1981 |
| Linsac’s Game Programs 1 and 2: A Review Reivew of games cassettes from Linsac. Games include Three Towers (Towers of Hanoi), Guess a Number, Mastermind, Sketcher (simple drawing... | SYNC | January/February 1981 | |
| LJH’s Keyboard Ad says “wired keyboard hooks up in minutes,” but this project may take beginners 1-2 hours. | Syntax | August 1981 | |
| Loan Amortization Revisited | Syntax | August 1981 | |
| Loan Amortization Schedule Program gives you monthly payments and loan amortization information. | Syntax | July 1981 | |
| Looking inside the ZX80 Basic routines to show the ROM contents. | SYNC | May/June 1981 | |
| Machine Code Keyboard Scanning Program Machine code routine to decode the keyboard and a Basic program for entering/saving machine code programs. | SYNC | July/August 1981 | |
| Machine Code Monitor Utility program enables you to edit and execute hex Z80 machine code. | Syntax | May 1981 | |
| Machine Code Print Routine Machine language (ML) permits you to print characters anywhere on the screen. Harness the ZX80’s own print routine with RST... | Syntax | September 1981 | |
| Machine Code Programming – Multiplication and Division Multiplication and division require more thought and attention to detail. | Syntax | June 1981 | |
| Machine Compatibility A beginner wrote to ask: All of the following computers have the designation 80 — ZX80, Z80, Z80A, TRS-80. Are... | Syntax | January 1981 | |
| Machine Language Programming – Logical Functions Differences between 4K and 8K ROMs can be overcome with machine language. | Syntax | July 1981 | |
| Machine Language Teaches the ZX80 to READ Simulate the READ command with machine language routine. | SYNC | September/October 1981 | |
| Machine Language Teaches the ZX80 to READ In Part 1 (SYNC 1:5) we saw what a READ statement is, how it functions, how to run a machine... | SYNC | November/December 1981 | |
| Mail Order Big Keyboard Keyboard available from Southern California Optical. | Syntax | March 1981 | |
| Making Music with the ZX80 | SYNC | March/April 1981 | |
| Manipulating Strings Routines broaden your ability to use strings in interesting ways. | Syntax | September 1981 | |
| Mastermind Number guessing game. | Syntax | February 1981 | |
| Mastermind This game is played much like the original board version. The computer selects a code of four colors from a... | SYNC | May/June 1981 | |
| Matrix Drawing Draws characters on a 13×20 matrix. | Syntax | June 1981 | |
| Maze Options Otis Imboden’s 2-line Maze-O-Graphics inspired several readers. Here are their 4K ROM maze improvements , offering different methods. | Syntax | July 1981 | |
| Mazo-O-Graphix Short program to create a maze. | Syntax | March 1981 | |
| Memory Display The Memoir Display Program presents 16 bytes of memory in binary, octal, decimal, and character. You can enter a one... | SYNC | March/April 1981 | |
| Memory Window Display 16 consecutive bytes of memory in hex, decimal and character format. | Syntax | January 1981 | |
| Micro Juice Owners of the Sinclair ZX80 and MicroAce rapidly discover that interruptions of power can cause headaches, not to mention the... | SYNC | March/April 1981 | |
| Microace interface to MM57109 calculator chip R.B. Turner plans to interface his 4K/2K MicroAce to the MM57109 programmable calculator chip to provide many scientific calculations. | Syntax | November 1981 | |
| MicroAce to Discontinue Kits MicroAce is phasing out its computer kits. According to Bill Clark of MicroAce, Sinclair didn’t renew MicroAce’s license. The company... | Syntax | August 1981 | |
| MicroAce-ZX80 Component Equivalence Chart showing part numbers and designations between the two computers. | Syntax | October 1981 | |
| Microcommander Interface Interface Technology has resumed plans to adapt the TRS-80 Microcommander to the ZX80. The device gives the computer direct control... | Syntax | September 1981 | |
| Microperipheral Abandons Modem Gave up plans to produce ZX80 modems because they had to add many hardware features not in the ZX80. Modem... | Syntax | June 1981 | |
| Mini-Billboard Program to print an eight character string on two rather large lines to create a “Mini-Billboard” on the TV screen. | SYNC | July/August 1981 | |
| ML Scroll Routine In 1K ZX80s, large programs easily overfill the 24 available screen lines. This machine language routine deletes the top line... | Syntax | August 1981 | |
| Modifying Hex Monitor for 4K Hex Monitor (May 81) stores ML programs without shielding them from BASIC. These changes load ML to reserved space. | Syntax | June 1981 | |
| More Truth in Programming As long as an expression produces only logical values (0 or -1), you can safely use NOT. Expressions such as... | SYNC | May/June 1981 | |
| Motorcycle Race Game Test your skill and luck on a ZX80 motorcycle! In this game you compete with another rider on a 32... | SYNC | September/October 1981 | |
| Moving Graphics Product announcement for Double Breakout from Softsync. | Personal Computing | November 1981 | |
| Multi-Dimensional Arrays for the ZX80 Techniques for simulating multi-dimensional arrays on the ZX80. | SYNC | July/August 1981 | |
| Multiplication Three-in-a-Row “Multiplication Three-in-a Row” is based on the program “Multiplication Bingo,” by Jean Wilson, Special Education teacher at Leadville High School,... | SYNC | July/August 1981 | |
| Multipurpose Memory Expansion SABRE Systems has developed a multipurpose memory expansion board to use in a variety of RAM/EPROM combinations. | Syntax | November 1981 | |
| New 8K ROM Features Updated list of the redesigned 8K ROM features not available on the 4K ROM and a brief explanation of their... | Syntax | May 1981 | |
| New 8K ROM Potpourri Sinclair’s first 8K ROM had a few bugs; list of changes to the 8K ROM map. | Syntax | November 1981 | |
| New Peripherals from Sinclair Printer, flat screen display and 8K ROM. Clive Sinclair has withdrawn the 8K Basic ROM chip for the ZX-80 until... | SYNC | January/February 1981 | |
| New Product Updates Updates on the 8K ROM; printer. | Syntax | April 1981 | |
| New Product Updates Updates from Sinclair on 16K RAM units; MicroPeripherals on its modem and CAI. | Syntax | March 1981 | |
| New Product Updates (Syntax v2 n1) Prestodigitizer requires 8K ROM; Cognivox requires 16K RAM; MicroPeripheral modem held up. | Syntax | January 1981 | |
| New Product Updates (Syntax v2 n2) CAI is accepting orders for their products. | Syntax | February 1981 | |
| New Products Directory: Invasion game | Interface Age | October 1981 | |
| New Products for the Sinclair ZX-80 Two new products for the ZX-80 are now available. A drop-in ROM replacement gives users an 8K extended BASIC, while... | Infoworld | August 17, 1981 | |
| New Publications QZX newsletter serves amateur radio operators who own ZX80s, published by Martin Irons. | Syntax | May 1981 | |
| New Sinclair – Cheaper, Better WALLINGFORD, CT – The lowest- priced personal computer is getting less expensive and is gaining features. In England, Clive Sinclair,... | Infoworld | April 27, 1981 | |
| News from MicroAce MicroAce offices are open after 3 week holiday; will soon market a book called The ZX80 Magic Book. | Syntax | February 1981 | |
| News from MicroAce MicroAce plans to sell plug-in 16K RAM boards with 3 extra connector slots. The extra connectors will be 50 pin,... | Syntax | July 1981 | |
| News From MicroAce MicroAce and ZX80 owners who want the flicker-free feature of the ZX81 can get it with an add-on board from... | Syntax | June 1981 | |
| Newsletter for the Sinclair ZX80 Microcomputer Announcement for Syntax ZX80. | Byte | January 1981 | |
| Nicomacus Program determines number you are thinking of (between 1 and 100) by successively dividing it by 3, 5, and 7. | SYNC | January/February 1981 | |
| Northeast Computer Show in Boston draws 50,000 BOSTON, MA-Moving robots, cars and watches that talk, computer games and every manner of software, hardware, gizmos and gimmicks were... | Infoworld | November 9, 1981 | |
| Note on copyright; REM skips next line REM statements with copyright notices do constitute legal protection; a blank REM causes the interpreter to skip next line. | Syntax | March 1981 | |
| On-line computers in psychology: The last 10 years, the next 10 years—The challenge and the promise 1980 marks the 10th anniversary of the National Conference on the Use of On-Line Computers in Psychology. There have been... | Behavior Research Methods | 1981-01-01 | |
| PEEK, POKE & CHR$ for Beginners (4K) Explanation of the commands and functions. | Syntax | June 1981 | |
| Perceptions SYNCSUM is a method of checking whether you have entered the program correctly. If you are submitting an article, we... | SYNC | July/August 1981 | |
| Perceptions A ROM Munching Session; Video Sync Signals; Video Modulator Drive Circuitry; Loading. | SYNC | September/October 1981 | |
| Perceptions Conversions: 4K ROM to 8K ROM and 8K ROM to 4K ROM | SYNC | November/December 1981 | |
| Phone Dialer Circuit and program to turn the ZX80 into a phone dialer (mechanical). | Syntax | February 1981 | |
| Placing USR Calls in 4K, 8K Differences between both ROMs and machine code locations. | Syntax | June 1981 | |
| POKEing on the ZX80 | Electronics Today International | November 1981 | |
| Popular Electronics Tests: The Sinclair Research ZX80 Personal Computer The Sinclair Research model ZX80 personal computer, is a no-frills Z-80A microprocessor-based system designed to be very inexpensive and easily... | Popular Electronics | August 1981 | |
| Pounds and Pence, Dollars and Cents Programs for working with decimals in 4K ROM. | SYNC | January/February 1981 | |
| Prime Numbers Program lists all prime numbers between 1 and 1000. | Syntax | September 1981 | |
| Printing on the 8K ROM One of the 8K ROM’s nicest features is its increased printing capability. | Syntax | September 1981 | |
| Problems Solving Principles for Programmers: Applied Logic, Psychology and Grit Review of the book by William Lewis. | Syntax | September 1981 | |
| Product Preview Mentions CAI Instruments devices, graphics device from Innovision, speech recognition unit from Voicetek and Sinclair 8K ROM and 16K RAM... | SYNC | March/April 1981 | |
| Programmed Responses – Latin Roots Drill for students of Latin and Greek. | Syntax | June 1981 | |
| Programming Language Terminology Definition of terms. | Syntax | June 1981 | |
| Publications Guide Lists over 350 computer, technology, electronics, and business magazines, newsletters, and report/database services. | Syntax | July 1981 | |
| Random Functions in 4K, 8K Compare RND (4K, 8K), RAND (8K), and RANDOMISE (4K) . | Syntax | September 1981 | |
| Random Ramblings: The Northeast Computer Show Photo of the Sinclair booth at the Northeast Computer Show. More than 200 ZX80s were sold. | Creative Computing | March 1981 | |
| Reader’s Report on MicroAce Video Not for neophytes– that’ s John Strain’s assessment of the MicroAce Flicker-Free Video Add-on Board. According to John, “The flicker-free... | Syntax | September 1981 | |
| Reading Machine Code Assembly Beginning machine language (ML) programmers sometimes have trouble deciphering all the numbers that make up an assembly listing. | Syntax | September 1981 | |
| Redesigned Telephone Dialer Revisions to the telephone dialer available from a reader | Syntax | March 1981 | |
| Reduce 4K Loading Noise 4K ROM users: instead of building our Cassette Eavesdropper (Dec. 80) to reduce loading noise, try a dual mini-plug from... | Martin Irons (K2MI) | Syntax | November 1981 |
| REM Statements REM statements can be useful tools for beginning programmers, REM stands for REMark. You can also think of it as... | Syntax | January 1981 | |
| Resources (Sync v1 n4) Listing of new user groups, books and other resources. | SYNC | July/August 1981 | |
| Resources (Sync v1 n5) Listing of new user groups, books and other resources. | SYNC | September/October 1981 | |
| Resources (Sync v1 n6) Listing of new user groups, books and other resources. | SYNC | November/December 1981 | |
| Resources for the ZX-80 and MicroAce (Sync v1 n1) Currently available hardware, software, books and user groups and newsleters. | SYNC | January/February 1981 | |
| Resources for the ZX80 and MicroAce (Sync v1 n2) Companies and organizations with products related to the ZX80. | SYNC | March/April 1981 | |
| Resources for the ZX80 and MicroAce (Sync v1 n3) Entries from manufacturers and readers. Includes the name of the item, a brief description, price and complete data on how... | SYNC | May/June 1981 | |
| Reverse The object of this game, rewritten from one published by Creative Computing, is to get the numbers in ascending order... | Syntax | November 1981 | |
| Review: ZX80 Pocket Book | SYNC | March/April 1981 | |
| Review: ZX80 Programs | SYNC | March/April 1981 | |
| Robot Composer As Richard Forsen has noted, a series of tones can be generated by a series of FOR-NEXT loops. However, we... | SYNC | September/October 1981 | |
| ROM List Delay 4K ROM assembly listing has been delayed for a couple of weeks. | Syntax | September 1981 | |
| ROM V. RAM Explanation of the difference. | Syntax | February 1981 | |
| Rounding off Routine The 8K ROM’s floating point decimal is great, but sometimes you don’t need 9 decimal places. | Syntax | October 1981 | |
| Schematic of Sinclair 16K RAM Pack | SYNC | September/October 1981 | |
| Screen Scrolling This article shows how a routine can he written and entered into a ZX80 that enables the user to SCROLL... | SYNC | July/August 1981 | |
| Setting Up Bar Charts This program listed works with 1K to chart two years of monthly checking account balances with vertical bars. The graph... | SYNC | July/August 1981 | |
| Sinclair 8K ROM Software Sinclair now offers cassette programs for the ZX80 and ZX81 with 8K ROM. | Syntax | April 1981 | |
| Sinclair Announces ZX81 Computer Sinclair Research unveiled a new computer at a press conference in England in mid-March. The ZX81 comes with the same... | Syntax | April 1981 | |
| Sinclair doubles its ZX81 output BOSTON, MA – Sinclair Research has increased monthly production of its ZX81 microcomputer to 40,000 units from 20,000. The British-based... | Infoworld | November 16, 1981 | |
| Sinclair Fall Computer Show Sinclair Research plans to hold computer shows to introduce its ZX81 this fall. Response to the first show, to be... | Syntax | September 1981 | |
| Sinclair News – ROMs and RAMs Here By the time you read this, Sinclair will have delivered all 8K ROMs and 16K RAMs on order, according to... | Syntax | May 1981 | |
| Sinclair Printer by 1982 Sinclair engineers will redesign the printer to meet US requirements at the end of September, 1981. | Syntax | October 1981 | |
| Sinclair Product Updates Sinclair’s ZX81 computer reaches the US on Oct. 7, 1981. | Syntax | October 1981 | |
| Sinclair to Replace Faulty 8K ROMs A new ROM supplier produced 8K ROMs with a bug, and Sinclair has stopped shipping until a supply of perfect... | Syntax | July 1981 | |
| Sinclair ZX80 Sinclair Research set out to build a simple to use personal computer running Basic and capable of breaking the psychological... | SYNC | January/February 1981 | |
| Sinclair ZX81 Review, reprinted from Personal Computer World. | Creative Computing | November 1981 | |
| Sinclair ZX81 ‘Devoted’ to Owners Clive Sinclair, inventor of the first pocket calculator and first pocket TV, showed off his almost pocket computer, the ZX80,... | Infoworld | July 20, 1981 | |
| Sinclair-MicroAce Legal Dispute Sinclair Research and Compshop, Ltd., (MicroAce’s English parent company) may go to court in England over their license agreement. According... | Syntax | March 1981 | |
| Sinclair’s 10-page technical manual … Sinclair’s 10-page technical manual has materialized as a 4-page manual with ZX80 schematic. | Syntax | February 1981 | |
| Sinclair’s Latest Review of the ZX81. | Electronics Today International | June 1981 | |
| Sinclair’s Printer Shown in US Clive Sinclair of Sinclair Research demonstrated his ZX81 printer at the the US introduction of the ZX81 computer in Boston... | Syntax | November 1981 | |
| Sinclair’s ZX80: Review of a Very, Very Small Computer A few days ago, I received a Sinclair ZX80 in the mail. I took it out of the box and... | Dr. Dobb’s Journal | February 1981 | |
| Sine Functions on 4K Closely approximate sine functions on your 4K ROM with a few BASIC statements. | Syntax | September 1981 | |
| Smallest desk-top computer yet Don’t let the small size fool you. At just six by 6.5 by 1.5 inches, Sinclair’s ZX81 is a complete... | Popular Science | September 1981 | |
| Soft Centered Software announcements. “The first American software for the Sinclair ZX 80 should be hitting the market soon, courtesy of Image.” | Creative Computing | January 1981 | |
| SoftSync Software Softsync offers ZX80 Invasion. | Syntax | April 1981 | |
| Software Review: And the Walls Came Tumbling Down After the successful introduction of Super ZX80 Invasion, Softsync has come out with Double Breakout, its second active display game.... | SYNC | July/August 1981 | |
| Software Review: Unfriendly Skies Softsync’s Super ZX80 Invasion. Using an active display to produce true animation. The tape comes with both 1K and 2K... | SYNC | May/June 1981 | |
| Software Update: Moving Graphics Double Breakout from Softsync. | Personal Computing | November 1981 | |
| Soldering Hints Even if you’re not a hardware person, you can connect external devices to your computer without fear. You only need... | Syntax | August 1981 | |
| Son of Big Characters Print 4x size characters. | Syntax | February 1981 | |
| Sort Routine This routine can sort 20 words of 20 characters in about 8 seconds. | Syntax | October 1981 | |
| Star Count After each complete scan of the star field, you must make an estimate of the total number of stars visible... | Syntax | August 1981 | |
| State of Microcomputing: Some Horses Running Neck and Neck Sinclair has an estimated gross $18m in revenues for 1981. The number of computers in place as of 7/1/81 is... | Infoworld | September 14, 1981 | |
| Super Monzxer This adventure game of survival challenges you with man-eating spiders, giant bats, pits and monzxers. You are in a cave... | Syntax | November 1981 | |
| Super ZX80 Invasion This game creates impressive continuous graphics on the ZX80, but limited memory imposes severe limitations on convenient play. | Syntax | May 1981 | |
| Sync Notes ZX81 —The Family Increases; PERCEPTIONS; SYNCSUM; Spaces in PRINT Statements; MicroAce II????; SYNC Subscribers Pass the 6000 Mark; A P.S.... | SYNC | July/August 1981 | |
| Sync Notes SYNC program listings; 8K ROM problems; SYNC subscriptions; ZX Microfair; SYNC in Microcomputer Index; SYNC Notes: UK; Sinclair Launches the... | SYNC | September/October 1981 | |
| Sync Notes ZX Microfair Report; ZX81 Launched in the U.S.; The World of Compukid; Second ZX Microfair to be Held | SYNC | November/December 1981 | |
| SYNC Reader Survey | SYNC | May/June 1981 | |
| Syns of Omission Error corrections to articles in prior issues. | Syntax | February 1981 | |
| Syns of Omission Corrections to programs in prior issues. | Syntax | March 1981 | |
| Syntactic Sums Checksum program for programs in Syntax. | Syntax | February 1981 | |
| Syntactic Sums for Past 4K ROM Programs in Syntax ZX80 Corrections to Cryptoquote, 12 Days of Christmas, Big Characters, Multiplication Exercise, Season’s Greetings, Compu-Calendar, Bubble Sort, Basic Salary Sched, Memory... | Syntax | February 1981 | |
| Syntax Error Two errors in Machine Code Print Routine. | Syntax | October 1981 | |
| Syntax Error Corrections to ZX80 Checkbook; Improving Display. | Syntax | September 1981 | |
| Syntax Error | Syntax | July 1981 | |
| Syntax Error Joe Chaiet’s Bar Chart program contained an error. | Syntax | May 1981 | |
| Syntax Errors Corrections to Loan Amortization and 30 Programs for the Sinclair ZX80. | Syntax | August 1981 | |
| Syntax Errors Errors with Martin Iron’s line renumbering program. | Syntax | June 1981 | |
| Syntax Errors Jon Passler noticed an error in his 8K Roundoff routine (Oct. 81). | Syntax | November 1981 | |
| The “QS Sound Board” for the ZX80/81 Based on the extremely versatile AY-3-8910 sound generator chip, the QS Sound Board features complete software control of the frequency... | SYNC | September/October 1981 | |
| The 4th Personal Computer World Show Report on computer fair. Sinclair products mentioned include ZX82, ZX81 and printer. | Creative Computing | December 1981 | |
| The Amazing Active Display and Breakout Review of a utility program and game. | SYNC | March/April 1981 | |
| The Beginner Learns to Load Trials and tribulations of loading. | Syntax | March 1981 | |
| The Great Circle Route “The Great Circle Route” shows something of its possibilities. After entering the program on your computer, enter the latitude and... | SYNC | September/October 1981 | |
| The Hand-Held Computer Editorial about handheld and small computers. Sinclair ZX80 is mentioned. | Byte | January 1981 | |
| The Hidden Chessmen The Hidden Chessmen is a search and find game like Hurkle. A knight, a bishop, and a rook are hidden... | SYNC | November/December 1981 | |
| The Home Computer Market, the ZX80 and the Future Excerpts of a speech given to the Amateur Computer Group of New Jersey, December 11, 1980. I would like to... | SYNC | March/April 1981 | |
| The Math Program Program that presented tailored study, using ZX80s, to those who want extra help in math. | Syntax | September 1981 | |
| The MicroAce Computer Review and construction guide to the MicroAce. | Byte | April 1981 | |
| The MicroAce: An inexpensive computer controller A $200 computer system is described that can act as a laboratory controller. Advantages and disadvantages of the system are... | Behavior Research Methods | 1981-09-01 | |
| The PEEK Function and the POKE Command This article returns to Basic to discuss the PEEK function and the POKE command. Since the 8K ROM is now... | SYNC | September/October 1981 | |
| The Sinclair Research ZX80 The new ZX80 microcomputer from Sinclair Research Ltd is a remarkable device. Although first announced to the North American public... | Byte | January 1981 | |
| The SYNC Challenge Winners of the challenge printed in the first issue. | SYNC | May/June 1981 | |
| The SYNC Challenge: Hammurabi Challenge to readers to get Hammurabi from Creative Computing’s Basic Computer Games converted to work on the 1K ZX-80. | SYNC | January/February 1981 | |
| The Times They are a’ Changing: The Building of a MicroAce What do you get with the MicroAce? It comes with processor, cassette interface, pressure-sensitive keyboard, video interface, power supply, 2K... | SYNC | January/February 1981 | |
| The TL$ Function Do not overlook the use of the TL$ function when you are creating programs. It is a very useful item.... | SYNC | July/August 1981 | |
| The ZX80 Companion Review of the book published by LINSAC. | Syntax | July 1981 | |
| The ZX80 Companion – A Review | SYNC | March/April 1981 | |
| The ZX80 Keyboard Technical description of the keyboard, schematic of the associated circuitry and machine language code for accessing the keyboard. | SYNC | May/June 1981 | |
| The ZX80 Magic Book – A Review | SYNC | March/April 1981 | |
| The ZX80 Makes the Grade In this article we present two programs running on the 1K Basic machine. The first determines the test scores and... | SYNC | July/August 1981 | |
| The ZX80/1 As Fortune Cookie In addition to reputed oracular powers, the I Ching has proven to be a source of fascination for mathematicians and... | SYNC | September/October 1981 | |
| The ZX81 Companion Bob Maunder’s new book is very different from The ZX80 Companion. It aims to appeal to every ZX81 owner, but... | Syntax | November 1981 | |
| Tic Tac Toe or Noughts and Crosses On a computer with a very limited amount of memory (1K) even a simple game like Tic Tac Toe might... | SYNC | March/April 1981 | |
| Today’s Personal Computers: Products for Every Need – Part II Computers from Altos to Sinclair ZX-80. | Personal Computing | June 1981 | |
| TR$ and LET A$=A$+B$ on the ZX80 String handling on the ZX80 is reasonably good. The 4K Integer Basic lets the user print, input, and compare strings.... | SYNC | July/August 1981 | |
| Translating From Other Basics Translating ON … GOTO and LEN() to 4K BASIC. | SYNC | May/June 1981 | |
| Trouble-shooting Your MicroAce You’ve put together your MicroAce and examined the PC board solder connections — everything looks good. Power up — you... | Syntax | October 1981 | |
| Truth in Programming It’s time for a little truth in programming, time for a bit of logic. Why let your programs slave away... | SYNC | March/April 1981 | |
| Try This Two line program. | SYNC | May/June 1981 | |
| Try This | SYNC | July/August 1981 | |
| Try This | SYNC | September/October 1981 | |
| TV, Recorder Recommendations Advice for TVs and tape recorders. | Syntax | February 1981 | |
| Two Challenges of Taxman The computer will lay out the integers from 1 to a maximum which you have entered. You pick one of... | SYNC | November/December 1981 | |
| Using Extra Keys on Big Keyboard Additional logic to implement shifted keys. | Syntax | March 1981 | |
| Using Key and Token Expressions Keywords as well as tokens could be typed into program lines in full — spaces and all— with practically a... | SYNC | September/October 1981 | |
| Using the 8K ROM, 16K RAM on MicroAces According to Andy Fisher of MicroAce, Sinclair’s 8K ROM and 16K RAM pack are completely compatible with MicroAce machines with... | Syntax | April 1981 | |
| Using the Microace with Sinclair Accessories Modifications to allow the Microace to use Sinclair accessories. The 16K RAM module is completely compatible with the MicroAce 1K... | SYNC | March/April 1981 | |
| Variable Conversions in the ZX80 There are many cases when it is convenient to convert one type of variable to another, such as numeric to... | SYNC | May/June 1981 | |
| Video Display Notes Article describes the gut workings of the MicroAce/ZX80 video display. | Syntax | May 1981 | |
| Video Modifications for the ZX80 Inverted and direct video. | SYNC | March/April 1981 | |
| What Can You Buy for Under $1000? The Sinclair ZX80 is compact enough to slip easily into a brief case or tote bag. Since the ZX80 weighs... | Creative Computing | September 1981 | |
| Widget Widget is a relative of the games Hammurabi and Lemonade Stand, in which the player allocates his resources for the... | SYNC | March/April 1981 | |
| Writing Game Programs How do you start writing game programs? | Syntax | July 1981 | |
| Zeta Software MCD Name Changer. | Syntax | November 1981 | |
| ZX-80 Music The Player ZX80, music synthesis for the 4K ROM ZX80. Single voice with 2-octave range and can perform tunes up... | Popular Electronics | December 1981 | |
| ZX80 Budget Can keep track of expenses. As written, program keeps addition totals on 18 accounts. | Syntax | September 1981 | |
| ZX80 Check Book Program records up to 10 transactions at a time. Keep them on file by storing the program with the variables... | Syntax | July 1981 | |
| ZX80 Double Breakout Review of the game from Softsync. | Syntax | August 1981 | |
| ZX80 Games A Night in Las Vegas (Slot Machine, Roulette, Blackjack and Craps) from Lamo-Lem. | Popular Electronics | December 1981 | |
| ZX80 Group Licensed hams using the Sinclair ZX80 or Microace now have a user net on single sideband. Contact Marty Irons, K2MI,... | Les Solomon | Popular Electronics | September 1981 |
| ZX80 Pocketbook THE ZX80 P0CKETB00K is now available from SYNTAX. | Syntax | August 1981 | |
| ZX80 Prestel Model Model of the British Prestel data base tree structure. It can be used with your own data for display to... | Syntax | June 1981 | |
| ZX80 Review A complete, ready-to-run computer for under $350 would make anyone sit up and take notice. | Electronics Today International | February 1981 | |
| ZX80 Table Constructs number tables with columns lined up. | Syntax | September 1981 | |
| ZX80/Microace Games The Chest of Classics comes with four games: Life (Conway’s Game of Life), Lunar Lander, Mindmaster, and K-Trek, a variant... | Popular Electronics | August 1981 | |
| ZX80/ZX81 Users Club The ZX80/ZX81 Users Club in Surrey, England serves all users, beginner to expert. | Syntax | August 1981 | |
| ZX81 – The New Standard For only $149, you now get 8K BASIC, continuous display, the choice of channel 2 or 3 and a newly... | Syntax | November 1981 | |
| ZX81 and 16K RAM Schematics A new company, Heuristics, is the exclusive distributor of ZX81 and 16K RAM pack schematics. They also plan ZX81 hardware... | Syntax | November 1981 | |
| ZX81 Announced in Great Britain An improved version of the ZX80 computer, the ZX81 has been redesigned to incorporate a number of new features. The... | SYNC | May/June 1981 | |
| ZX81 Hardware Review (UK) Listing of products and prices for ZX81 hardware. | SYNC | September/October 1981 | |
| ZX81, Sinclair Printer News Sinclair has submitted the ZX81 to the FCC for approval for sale in the US. Nigel Searle of Sinclair expects... | Syntax | July 1981 |