Enter a temperature and wind speed to get the classic Siple-Passel wind chill index, with automatic restart after displaying the result.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A taunting number-battle game where you pick from ten skewed random values and the computer plays a greedy counter-strategy—can you outsmart "Stumper"?
computer_media, orig pub: 10.05.24, updated: 03.20.26
computer_media, orig pub: 10.05.24, updated: 03.20.26
A floating-point Pythagorean triple finder that uses clever epsilon-offset arithmetic to overcome rounding errors while scrolling results automatically on-screen.
computer_media, orig pub: 10.05.24, updated: 03.20.26
Enter the seconds until you hear a dropped object hit the ground, and this physics program solves the quadratic equation to reveal the true drop height.
computer_media, orig pub: 10.05.24, updated: 03.20.26
Enter any date and watch this population clock estimate the U.S. population in real time, using an exponential growth formula with per-minute updates.
computer_media, orig pub: 10.05.24, updated: 03.20.26
This program implements the classic "21-card trick" in which a participant mentally selects one of 21 cards dealt face-up in three rows of seven.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A complete menu-driven accounts receivable system packs date, customer name, and amount into fixed-width string records—with Shell sort, tape save, and optional printer output.
computer_media, orig pub: 10.05.24, updated: 03.20.26
Synchro-Sette updater that uses block-graphic borders, checkerboard animation, and dual scrolling text windows with pause and rewind controls.
computer_media, orig pub: 10.05.24, updated: 03.20.26
Navigate a hidden minefield one step at a time, balancing risk and reward across 200 cells — but one wrong move triggers a flashing BOMB screen.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A fully-featured cassette tape library manager with menu-driven data entry, field-based sorting, and LPRINT support packed into a string array.
computer_media, orig pub: 10.05.24, updated: 03.20.26
Can you zero out all nine digits in the fewest moves? This clever number-reduction puzzle uses a weighted random generator and a borrow-penalty mechanic to keep things tense.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A digit-based Mastermind clone where you decode a secret four-digit sequence, with block-graphic scoring markers and a nine-guess limit.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A keystroke-driven two-operand calculator supporting five operations, with a Z-key backspace and live display of the current expression as you type.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A tape menu loader that uses machine code initialisation and a computed GO TO to dispatch one of eight named programs from a styled inverse-video selection screen.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A smooth pixel-by-pixel hardware marquee scroller driven by machine code hidden in a REM statement, with live speed control and custom message entry.
computer_media, orig pub: 10.05.24, updated: 03.20.26
Enter an interest rate and a target growth factor to find out exactly how many years your deposit takes to multiply — using a brute-force compound interest loop.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A Synchro-Sette bulletin board scroller uses a machine code LDDR routine hidden in a REM statement to drive smooth vertical and horizontal text animation.
computer_media, orig pub: 10.05.24, updated: 03.20.26
Guide falling stars into the right column by pressing 1–5, but can you predict their diagonal path before they land?
computer_media, orig pub: 10.05.24, updated: 03.20.26
Guide your craft through drifting hazards toward a white hole.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A mesmerising two-part display program that spirals block graphics inward then draws shrinking trig-based circles before looping forever.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A user-typed message is rendered word by word in large pixel art letters by reading the character ROM directly, then smoothly scrolled in a continuous loop.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A string-based subtraction program that uses the nine's complement addition trick to subtract multi-digit numbers without any direct subtraction arithmetic.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A seven-function employee payroll system that packs full personnel records into fixed-width string slices and computes multi-tax net pay with comma-formatted currency output.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A slick block-graphics menu loader that reads your keypress and jumps straight to one of eight cassette programs using a computed GO TO trick.
computer_media, orig pub: 10.05.24, updated: 03.20.26
Enter any message and watch each word rendered in giant pixel characters, scrolling endlessly using direct ROM font data and bit-by-bit UNPLOT plotting.
computer_media, orig pub: 10.05.24, updated: 03.20.26
Bulletin board program that gives updates for the February 1983 issue of Synchro-Sette.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A string-based column-addition program that carries digits manually, pads operands, and presents the result in classic written arithmetic layout.
computer_media, orig pub: 10.05.24, updated: 03.20.26
Guide your inverse-video spaceship through a star field to dock with a randomly placed fuel satellite — before your fuel counter hits zero.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A festive greeting card that endlessly scrolls block-graphic decorations while flashing "Merry Christmas" and "Happy New Year" in inverse video.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A scrolling job-cost estimator that itemises materials, shop and on-site labour, overhead, and profit, then prints a formatted per-unit and extended quote.
computer_media, orig pub: 10.05.24, updated: 03.20.26
Enter your odometer readings and fuel costs to instantly calculate MPG, cost per mile, and how far your tank will take you.
computer_media, orig pub: 10.05.24, updated: 03.20.26
Menu program for the December 1982 issue of Synchro-Sette.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A full-featured stock inventory manager storing 100 items with name, part number, cost, and quantity fields — all packed into a fixed-width string array with clever formatted-field subroutines.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A reflex-testing game where a bouncing cursor hides a five-byte machine-code routine and rewards precision timing with a hidden positional bonus score.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A scrolling chain-saw shooting gallery where you fire upward bullets at inverse-video targets moving in opposite directions — can you rack up the highest score in 10 shots?
computer_media, orig pub: 10.05.24, updated: 03.20.26
Bulletin board program that blends machine code, inverse-video block graphics, and a clever bidirectional string-rotation scroller into one festive Christmas display.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A block-graphics submarine dodges across the screen while you fire angled torpedoes — but you only get 20 moves to sink as many as you can.
computer_media, orig pub: 10.05.24, updated: 03.20.26
Loads one of eight programs by name, using a single comma-delimited string and inverse-video overlays for its display tricks.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A keyboard-driven RAM editor that pokes a cursor character around the display file and lets you save your work — all in 16 lines of BASIC.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A 21-unit measurement converter spanning length, volume, and weight that uses a computed GOTO to jump directly to whichever conversion routine you need.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A compact change-of-base logarithm calculator that accepts any base and number, then loops endlessly for repeated calculations using a neat RUN restart trick.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A two-player Memory matching game on a 6×8 coordinate grid, hiding 12 pairs of block graphics behind inverse question marks until all 24 are found.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A bulletin-board title screen animates inverse-video text, draws block-graphic borders, and scrolls two independent marquee tickers — all driven by a machine-code routine.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A 12-month sales bar chart that scales each row of block graphics to the highest value entered, then totals and averages your figures automatically.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A surprisingly capable full-screen text editor stores 2,880 characters in a string array, with cursor movement, insert, delete, and tape save — all without machine code.
computer_media, orig pub: 10.05.24, updated: 03.20.26
Cassette to accompany the April 1983 issue of Synchro-Sette.
computer_media, orig pub: 09.22.24, updated: 03.20.26
Cassette to accompany the September 1983 issue of Synchro-Sette.
computer_media, orig pub: 09.22.24, updated: 03.20.26
Cassette to accompany the October 1982 issue of Synchro-Sette.
computer_media, orig pub: 09.22.24, updated: 03.20.26
Cassette to accompany the November 1983 issue of Synchro-Sette.
computer_media, orig pub: 09.22.24, updated: 03.20.26
Cassette to accompany the June 1983 issue of Synchro-Sette.
computer_media, orig pub: 09.22.24, updated: 03.20.26
Cassette to accompany the February 1983 issue of Synchro-Sette.
computer_media, orig pub: 09.22.24, updated: 03.20.26
Cassette to accompany the December 1982 issue of Synchro-Sette.
computer_media, orig pub: 09.22.24, updated: 03.20.26
Cassette to accompany the March 1984 issue of Synchro-Sette.
computer_media, orig pub: 09.22.24, updated: 03.20.26
A surprisingly capable mini-spreadsheet with formula cells that can reference other cells by name, evaluated through a clever string-substitution technique.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A three-reel nickels slot machine with seven block-graphic symbols, tiered payouts, and a random bonus jackpot hiding inside the fruit machine logic.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A 1984 multi-game tape menu that draws a full block-graphic screen, animates a scrolling "PICK ONE" prompt, and LOADs your chosen title automatically.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A star-field intro rolls into a twin-window bulletin board scroller with full pause, rewind, and fast-forward keyboard controls — all driven by a POKEd machine-code routine.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A complete team bowling-season tracker storing three-game weekly scores per player, with menu-driven entry, statistics display, data editing, and tape save.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A five-shape geometry calculator that computes surface areas and volumes using a slick computed GOTO dispatch and Heron's formula for triangles.
computer_media, orig pub: 10.05.24, updated: 03.20.26
Guide a moving cushion across the bottom of the screen to catch falling bombs in this complete arcade game with score tracking and explosion animation.
computer_media, orig pub: 10.05.24, updated: 03.20.26
A compact Birthday Problem solver that streams 60 probability values, revealing exactly when shared birthdays become more likely than not.
computer_media, orig pub: 10.05.24, updated: 03.19.26
A single-key-driven scrolling text editor that buffers up to 672 characters and displays them from AT 0,0 with a live cursor marker.
computer_media, orig pub: 10.05.24, updated: 03.19.26
A two-part animated title screen scrolls "SYNCHRO-SETTE PRESENTS" onto the display using clever substring tricks, then delivers a cheeky punchline before looping forever.
computer_media, orig pub: 10.05.24, updated: 03.19.26
Guide a scrolling row of block-graphic targets with a launching paddle, score big on the rare high-value symbols, and aim for the elusive perfect score of 340.
computer_media, orig pub: 10.05.24, updated: 03.19.26
A memory and reflexes game that draws characters by PEEKing the ROM bitmap data and challenges you to recall specific digits from briefly flashed five-digit numbers.
computer_media, orig pub: 10.05.24, updated: 03.19.26
A keyboard-driven screen editor with a blinking block cursor, full cursor movement, and one-key SAVE — built entirely in BASIC without machine code.
computer_media, orig pub: 10.05.24, updated: 03.19.26
An address book storing 100 contacts across eight parallel string arrays, with partial-name search and field-by-field editing dispatched via computed GOTO.
computer_media, orig pub: 10.05.24, updated: 03.19.26
Type any character and watch it rendered as a giant 8×8 block-graphic glyph, pulled straight from the ROM font data with PEEK.
computer_media, orig pub: 10.05.24, updated: 03.19.26
A block-graphics maze scroller with embedded machine code scrolling—navigate left and right as the corridor closes in and your score climbs.
computer_media, orig pub: 10.05.24, updated: 03.19.26
Watch cars and trucks navigate toward toll booths while the program tallies revenue in real time, using block graphics and trigonometry to build a surprisingly detailed road scene.
computer_media, orig pub: 10.05.24, updated: 03.19.26
A complete stock-price database with moving-average charting, tape save, and in-string record editing — all packed into one string variable.
computer_media, orig pub: 10.05.24, updated: 03.19.26
A 60-room text adventure set in post-apocalyptic Manhattan, with subway transit, key-based door unlocking, and a hot air balloon escape on the rooftop.
computer_media, orig pub: 03.19.26, updated: 03.19.26
A full-featured flat-file card index database with a command dispatcher, two-mode full-screen editor, Shell sort, numeric zone summation, and tape persistence — one of the most architecturally complex BASIC productivity applications for the Sinclair platform.
computer_media, orig pub: 03.17.26, updated: 03.19.26
A to-do list manager with six menu options—add, prioritise, delete, view, and tape-save—dispatching via a neat GOTO VAL Y$*1000 trick.
computer_media, orig pub: 10.05.24, updated: 03.19.26
A crafty Connect-Three AI that drops tokens by direct memory POKE, hunts wins across rows, columns, and eight diagonal lines—and taunts you when it wins.
computer_media, orig pub: 10.05.24, updated: 03.19.26
A full referee program for a crossword game, encoding letter identities and point scores together in a single floating-point board array.
computer_media, orig pub: 10.26.24, updated: 03.19.26
A ZX81 action game where a mad tank fires wildly in all directions — can you plant your five mines before time, bullets, or the tank itself finish you off?
computer_media, orig pub: 10.26.24, updated: 03.19.26
A complete cassette library manager that tracks up to 100 programs across 10 tapes and prints formatted inlay cards directly to the printer.
computer_media, orig pub: 10.26.24, updated: 03.19.26
A machine code helper that converts hex, decimal, and two-byte values using clever ZX81 system variable tricks — designed to drop straight into any project.
computer_media, orig pub: 10.26.24, updated: 03.19.26
A perpetual calendar covering 1801–2399 that highlights your chosen date in inverse video and uses a clever string-based data store to pack day and month names.
computer_media, orig pub: 10.26.24, updated: 03.19.26
Command the Enterprise across a 5×5 galaxy grid, hunting 15 Klingons with torpedoes, phasers, and impulse drive before time and energy run out.
computer_media, orig pub: 10.26.24, updated: 03.19.26
A amateur satellite tracker with full Keplerian orbital mechanics, pass scheduling, and QTH configuration — all squeezed into Sinclair BASIC.
computer_media, orig pub: 11.07.24, updated: 03.19.26
A prefix-driven base converter that handles binary, octal, decimal, and hex input and output using character-code arithmetic and repeated division.
computer_media, orig pub: 11.16.24, updated: 03.19.26
A complete checkbook and budget organizer with nine menu functions, ledger columns, cassette save, and a clever currency-formatting routine to dodge floating-point rounding.
computer_media, orig pub: 11.16.24, updated: 03.19.26
A full crossword construction kit in pure BASIC — define your grid, write clues, validate answers, and even save your puzzle to tape, all in under 200 lines.
computer_media, orig pub: 11.16.24, updated: 03.19.26
A complete data-management suite with menus, up to 25 named files of 60 points each, statistics, bar graphing, and cassette save.
computer_media, orig pub: 11.16.24, updated: 03.19.26
Four self-contained utilities — a software clock with countdown mode, a dynamic bar-chart plotter, and a Gregorian day-of-week calculator.
computer_media, orig pub: 11.16.24, updated: 03.19.26
Three distinct ZX81 programs in one listing: a scrolling dodge game, a London Bridge tile-hopping puzzle, and an interactive pixel-plotting utility with screen copy.
computer_media, orig pub: 11.16.24, updated: 03.19.26
Three utility programs: an RF transmission-line impedance calculator, an amateur radio contest dupe checker using a hash table, and a great-circle bearing/distance tool.
computer_media, orig pub: 11.17.24, updated: 03.19.26
A nested-loop parametric surface renderer plots a 3D hat shape using a sum-of-sines height function and an oblique isometric projection — entirely in BASIC.
computer_media, orig pub: 11.17.24, updated: 03.19.26
A two-program listing combining a multi-regime pipe flow heat-transfer calculator with Nusselt correlations and a logarithmic curve printer using three nested ranges.
computer_media, orig pub: 11.17.24, updated: 03.19.26
This is a quickload program. It is comprised of a short speed loader in normal ZX81/TS1000 format followed by the actual program in a format similar to the Spectrum and TS2068 tape format.
computer_media, orig pub: 11.17.24, updated: 03.19.26
A self-installing Z80 machine code music player for the ZX81 that lets you compose melodies by entering hexadecimal note codes into a single BASIC line.
computer_media, orig pub: 11.17.24, updated: 03.19.26
A complete multi-employee payroll system that encodes dollar amounts and hours as packed binary strings to squeeze maximum data into a fixed-length string array.
computer_media, orig pub: 11.17.24, updated: 03.19.26
A two-part cassette-based US tax return calculator that parses delimited category strings, handles capital-gain carry-forwards, and hands off computed values to a side-B program.
computer_media, orig pub: 11.17.24, updated: 03.19.26
computer_media, orig pub: 11.17.24, updated: 03.19.26
A guided EPROM burner that PEEKs your ROM, applies selectable patches for printer support and memory size, then POKEs bytes out with per-byte timing delays.
computer_media, orig pub: 11.17.24, updated: 03.19.26
A two-language vocabulary trainer with a full-screen word editor, two randomised test modes, score reporting, printer output, and tape save — all packed into structured BASIC.
computer_media, orig pub: 11.17.24, updated: 03.19.26
Two linked ham radio programs manage Worked All States records across seven bands and print QSL confirmation cards complete with block-graphic borders on a thermal printer.
computer_media, orig pub: 11.17.24, updated: 03.19.26
A full BASIC spreadsheet with formula evaluation, scrolling display, and a hand-crafted ROM-font title screen built by PEEKing character bitmaps.
computer_media, orig pub: 11.17.24, updated: 03.18.26
You have heard of shoot’em up games? Well, how about a splash ’em down game? Yes, a major breakthrough in computer technology has brought us this weird game!
computer_media, orig pub: 02.28.25, updated: 03.18.26
The object of the game is to clear the board leaving only one piece in the center.
computer_media, orig pub: 02.28.25, updated: 03.18.26
A four-player lemonade-stand trading game where daily weather, pricing strategy, and advertising spend combine to determine who turns the biggest profit over 14 days.
computer_media, orig pub: 09.23.25, updated: 03.18.26
Enter event counts and time, and this Poisson probability calculator displays normalised percentage chances for up to 12 occurrences per time unit.
computer_media, orig pub: 09.23.25, updated: 03.18.26
Guide a chess knight across all 64 squares without revisiting any — can you complete the classic Knight's Tour using just row-column coordinates?
computer_media, orig pub: 09.24.25, updated: 03.18.26
This banner generator reads ROM font bitmaps directly, decoding each bit to scale any message into giant printer text with adjustable width and height.
computer_media, orig pub: 10.05.25, updated: 03.18.26
A self-installing machine code beeper routine that carves its own RAM space, pokes 43 bytes of Z80, and plays a tone on every keypress via USR.
computer_media, orig pub: 10.05.25, updated: 03.18.26
An 8-bit data bus visualiser that lights up coloured columns for each bit, with both an auto-counting demo mode and direct decimal entry.
computer_media, orig pub: 10.06.25, updated: 03.18.26
A complete calligraphic bitmap font renderer that places custom 24×24 and 24×30 pixel letters anywhere on screen using pixel-precise coordinates and machine code.
computer_media, orig pub: 10.06.25, updated: 03.18.26
A BASIC tool that relocates Z80 machine code to a new address and automatically patches every internal absolute address so nothing breaks.
computer_media, orig pub: 10.06.25, updated: 03.18.26
A full seven-field contact database for a church department, driven by machine-code modules that patch RESTORE addresses on the fly to navigate records stored in DATA statements.
computer_media, orig pub: 10.06.25, updated: 03.18.26
A pure-BASIC precision clock uses nested timing loops, BEEP-based calibration, and indirect GO SUB calls via stored line numbers to display large block-graphic digits.
computer_media, orig pub: 10.06.25, updated: 03.18.26
A BASIC subroutine plots filled ellipses row by row to assemble a complete stick-figure human body from four overlapping shapes.
computer_media, orig pub: 10.31.25, updated: 03.18.26
A block-graphics Christmas tree springs to life as individual pixel lights twinkle on and off in an endlessly looping animation driven purely by PLOT and UNPLOT.
computer_media, orig pub: 11.01.25, updated: 03.18.26
An eight-byte machine-code routine lets you scan any keyboard half-row for simultaneous keypresses, complete with a tape-save option and interactive demo.
computer_media, orig pub: 01.26.26, updated: 03.18.26
A clever two-voice BEEP music engine that rapidly alternates between voices stored as raw byte data in RAM, simulating polyphony with sentinel values for rests and end-of-tune.
computer_media, orig pub: 01.26.26, updated: 03.18.26
A clever BASIC scheduler interleaves three BEEP voices at high speed to fake polyphony, reading note-and-duration byte pairs straight from a memory-resident music block.
computer_media, orig pub: 01.26.26, updated: 03.18.26
Enter your down payment, monthly budget, interest rate, and loan term to instantly calculate the maximum home price you can afford.
computer_media, orig pub: 01.26.26, updated: 03.18.26
computer_media, orig pub: 01.26.26, updated: 03.18.26
computer_media, orig pub: 01.26.26, updated: 03.18.26
computer_media, orig pub: 01.26.26, updated: 03.18.26
A tape-based text editor.
computer_media, orig pub: 01.26.26, updated: 03.18.26
A ten-level oil-drilling game that switches UDG sets via direct POKEs, detects its host machine at runtime, and lets mines blow up your pipes underground.
computer_media, orig pub: 01.26.26, updated: 03.18.26
A BASIC program uses Zeller's congruence and a computed GO TO trick across 1,300+ line numbers to find your birthday and star sign instantly.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A three-cycle biorhythm plotter that uses pre-computed DATA tables and a custom UDG marker to draw your physical, emotional, and intellectual curves for any target month.
computer_media, orig pub: 01.30.26, updated: 03.18.26
computer_media, orig pub: 01.30.26, updated: 03.18.26
computer_media, orig pub: 01.30.26, updated: 03.18.26
computer_media, orig pub: 01.30.26, updated: 03.18.26
computer_media, orig pub: 01.30.26, updated: 03.18.26
computer_media, orig pub: 01.30.26, updated: 03.18.26
computer_media, orig pub: 01.30.26, updated: 03.18.26
A tape-based phone book that packs 250 contacts into a fixed-width string array and saves entry counts to a clever two-byte machine address on tape.
computer_media, orig pub: 01.30.26, updated: 03.18.26
computer_media, orig pub: 01.30.26, updated: 03.18.26
A compact looping tone built from a single SOUND statement hammering seven AY-3-8910 registers at once — hear what envelope shape 8 actually sounds like.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A Byte Power demo fires up the AY sound chip with a single SOUND statement, then silences it on a keypress — minimal code, maximum bark.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A compact three-line AY chip sound demo programs the envelope, noise, and mixer registers to recreate a helicopter sound effect.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A compact looping sound effect that programs the AY-3-8910 chip's registers directly to produce a repeating helicopter-like audio pattern.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A compact three-line loop drives the TS2068's AY sound chip through multiple registers simultaneously to recreate the thrum of a helicopter rotor.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A tight three-voice AY chip sweep that drives harmonically spaced pitches across all tone channels before silencing itself and looping forever.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A tape-based mailing label manager using machine code dispatch, dynamic CODE block sizing, and a block-character deletion flag to suppress records from printing.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A machine-code music composer whose BASIC shell juggles two separate tape CODE blocks and reads runtime addresses via PEEK to manage save and load operations.
computer_media, orig pub: 01.30.26, updated: 03.18.26
An inventory manager that uses machine code at address 55213 and a clever PEEK 65535 dispatch trick to drive its entire BASIC shell.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A tape-based checkbook manager.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A BASIC loader for a machine code marble game, with built-in screen save/load utilities and a clever self-locating bootstrap sequence.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A dual-mode text printing utility that rotates output sideways for the TS2040 thermal printer and pages through magazine text stored in raw memory.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A machine-code spreadsheet with a BASIC shell that uses PEEK 65535 as a jump table to hand control back to its own engine after every operation.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A 49-byte relocatable machine code routine produces genuine two-voice beeper sound, with pitch and border colour controllable via direct POKEs from BASIC.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A BASIC music demo that manually fades AY chip volume registers to fake an envelope, playing 18 notes with data-driven tone periods and decay rates.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A 18-note melody blasted directly through PSG chip registers using OUT commands — pitch, duration, and two-channel harmony packed into a compact DATA table.
computer_media, orig pub: 01.30.26, updated: 03.18.26
A background interrupt clock in 536 bytes of machine code, with BASIC documentation and a smart loader that detects whether the code is already resident in RAM.
computer_media, orig pub: 01.31.26, updated: 03.18.26
computer_media, orig pub: 01.31.26, updated: 03.18.26
computer_media, orig pub: 01.31.26, updated: 03.18.26
A two-voice Schumann piece uses SOUND with machine-code note data, using a clever volume-dip trick to articulate notes without silencing the channels.
computer_media, orig pub: 01.31.26, updated: 03.18.26
A two-voice echo music player for that staggers the same melody across two SOUND channels to simulate a real acoustic echo effect.
computer_media, orig pub: 01.31.26, updated: 03.18.26
This music player reads three-byte note records from a binary block at address 60000, programming the AY sound chip directly for metallic envelope tones.
computer_media, orig pub: 01.31.26, updated: 03.18.26
A 700-byte machine-code trace utility that hooks into BASIC execution and displays each line number as it runs, with separate USR entry points to toggle it on and off.
computer_media, orig pub: 01.31.26, updated: 03.18.26
A short melody player that drives the AY sound chip directly through DATA-encoded triplets, with silence events and smooth volume shaping built in.
computer_media, orig pub: 01.31.26, updated: 03.18.26
A complete tape-based mailing-list manager for a T/S user group, with member records, label printing, and a machine-code printer patch all bundled together.
computer_media, orig pub: 03.01.26, updated: 03.18.26
FUDGE is a complete joystick-driven UDG editor with pull-down menus, pixel grid editing, flip, rotate, shift, animate, and tape save/load for all 21 user-defined graphics.
computer_media, orig pub: 03.01.26, updated: 03.18.26
A two-way Julian Day Number converter that handles BC dates, century corrections, and day-of-week calculation via a clever shared subroutine.
computer_media, orig pub: 03.01.26, updated: 03.18.26
A four-mode teacher's grade book that calculates weighted averages across a six-week period and prints formatted report cards directly to a 2040 printer.
computer_media, orig pub: 03.01.26, updated: 03.18.26
A playable two-octave piano keyboard with flashing key animations, sharp/flat labels, and a built-in melody demo hidden behind a single keypress.
computer_media, orig pub: 03.01.26, updated: 03.18.26
A complete OSCAR-10 satellite tracker that plots world maps, calculates Doppler shifts, and displays live azimuth/elevation for 18 cities worldwide.
computer_media, orig pub: 03.01.26, updated: 03.18.26
A fully interactive pie chart generator that pulls individual slices, labels them with trigonometry, and relies on TASWIDE for wide text output.
computer_media, orig pub: 03.01.26, updated: 03.18.26
Type in any 3–7 letter word and this BASIC program systematically generates every possible permutation, with factorial counts and real-time progress on screen.
computer_media, orig pub: 03.01.26, updated: 03.18.26
A complete household utility auditor that handles three-tier electric, gas, water, and shared phone bills — all driven by editable DATA statements.
computer_media, orig pub: 03.01.26, updated: 03.18.26
A full homogeneous-matrix 3D wireframe cube renderer, hand-coding rotation, scaling, and translation without any built-in 3D support—pixel by pixel.
computer_media, orig pub: 03.02.26, updated: 03.18.26
A hand-crafted Z80 routine and careful display-file arithmetic squeeze 64 columns of text onto screen using only BASIC and a hex-encoded machine code loader.
computer_media, orig pub: 03.02.26, updated: 03.18.26
A clever banner printer that hijacks the screen renderer and POINT to enlarge any character string onto a 2040 printer in normal or inverse.
computer_media, orig pub: 03.02.26, updated: 03.18.26
A dot-density bar chart routine reads paired height and density values from DATA lines to render variable-fill bars using only PLOT commands.
computer_media, orig pub: 03.02.26, updated: 03.18.26
Step through every character in the set, watching its 8×8 pixel grid and raw ROM byte values revealed row by row with a keypress.
computer_media, orig pub: 03.02.26, updated: 03.18.26
Design custom UDG characters pixel by pixel on a live grid, with instant byte-value readout and automatic RAM updates as you draw.
computer_media, orig pub: 03.02.26, updated: 03.18.26
A colourful, noisy joystick doodle pad for small children, complete with a bouncing cross cursor, random ink colours, and directional beeps for every move.
computer_media, orig pub: 03.02.26, updated: 03.18.26
A banner printer that reads UDG pixel data directly from memory, transposes the 8×8 bitmap, and expands every pixel into a chunky 4×3 block character on the 2040 printer.
computer_media, orig pub: 03.02.26, updated: 03.18.26
A polar-coordinate pie chart renderer that uses dot density and angle ranges stored in DATA lines to fill wedges with evenly spaced points.
computer_media, orig pub: 03.02.26, updated: 03.18.26
A mesmerising animated fan pattern traces lines between opposite perimeter points with randomised colours, using a hand-rolled vector line-drawing routine instead of DRAW.
computer_media, orig pub: 03.02.26, updated: 03.18.26
A machine code art package from Your Computer gets a TS2068 conversion—with BASIC-driven parametric circles, screen save/load, and text overlay routines.
computer_media, orig pub: 03.02.26, updated: 03.18.26
A three-mode pixel editor lets you draw single UDG characters, 16×16 sprites, and massive 23×24 sprites, then POKEs them directly into UDG RAM.
computer_media, orig pub: 03.02.26, updated: 03.18.26
A morphing 3D saddle-cosine surface rendered with perspective projection, using Z80 LDIR machine code to page display-file snapshots in and out of RAM.
computer_media, orig pub: 03.04.26, updated: 03.18.26
A two-voice AY chip arrangement of a Beatles classic, with selectable tempo and a live channel status display driven by carefully sequenced DATA statements.
computer_media, orig pub: 03.05.26, updated: 03.18.26
A BASIC arrangement of Chopin's Prelude drives the AY-3-8912 chip directly, blending three-channel register writes with BEEP calls and a user-adjustable tempo control.
computer_media, orig pub: 03.05.26, updated: 03.18.26
A classic ELIZA psychiatrist chatbot that drives its keyword-matching engine with a separately loaded machine code routine, blending BASIC responses with fast Z80 string searching.
computer_media, orig pub: 03.05.26, updated: 03.18.26
A simultaneous-equations quiz that generates guaranteed integer solutions and reveals them with flashing highlights — can you beat it before pressing any key?
computer_media, orig pub: 03.05.26, updated: 03.18.26
A colour-rich French vocabulary quiz that randomly selects questions without repeats, rewards correct answers with escalating beeps, and tracks your score across up to 20 words.
computer_media, orig pub: 03.05.26, updated: 03.18.26
A configurable mouse population genetics simulator that tracks allele frequencies across 50 generations, complete with a UDG mouse icon and live selection-pressure modelling.
computer_media, orig pub: 03.05.26, updated: 03.18.26
A physics-driven bouncing ball with distinct wall-collision sounds gradually widens its arc across a pixel-drawn enclosure until it comes to rest—then relaunches with more speed.
computer_media, orig pub: 03.05.26, updated: 03.18.26
An interactive PCB diagram of the ZX Spectrum Issue 3 board, with block-graphic components, vector-drawn bus lines, expansion-port pinout, and detailed on-screen explanations of every chip.
computer_media, orig pub: 03.05.26, updated: 03.18.26
A full Conway's Life implementation with a cursor-driven cell editor and machine-code evolution engine, loaded from tape and driven by a BASIC menu shell.
computer_media, orig pub: 03.05.26, updated: 03.18.26
A complete rendition of Mozart's K. 545 sonata encoded purely in BEEP commands, with clever transposition tricks and reusable pattern subroutines packed into under 200 lines.
computer_media, orig pub: 03.06.26, updated: 03.18.26
A multiplication quiz that rewards correct answers with an arcade money-catching game, complete with UDG sprites, chip sound, and a running bank balance.
computer_media, orig pub: 03.06.26, updated: 03.18.26
Enter any two electrical values and this Ohm's Law calculator instantly derives voltage, current, resistance, and power using all six possible formula pairs.
computer_media, orig pub: 03.06.26, updated: 03.18.26
A self-looping generative sound program that drives the AY-3-8912 chip through random frequency sweeps, noise bursts, and probabilistic pauses to create endless ambient tones.
computer_media, orig pub: 03.06.26, updated: 03.18.26
A playable piano simulator with custom UDG key graphics, three octave modes, and nine adjustable note durations—all driven by a single BEEP command per keypress.
computer_media, orig pub: 03.06.26, updated: 03.18.26
A self-contained quiz authoring tool that lets you type questions and answers, saves them to tape, then tests you with hints and a two-attempt scoring system.
computer_media, orig pub: 03.06.26, updated: 03.18.26
Build your own quiz, get hints when you're stuck, and earn bonus points for first-try answers — then save the whole thing as a standalone program.
computer_media, orig pub: 03.06.26, updated: 03.18.26
A memory-training spelling game that flashes a phrase, hides it, then checks your typed answer — with a subtle string-comparison trick buried in the logic.
computer_media, orig pub: 03.06.26, updated: 03.18.26