| A First Look: Sir Clive's Newest Microchip Wonder | A comprehensive first review of the Cambridge Z88 laptop computer, covering its Z80 CPU, 32K RAM, 128K EPROM, and the OZ operating system. Describes built-in applications including PIPEDREAM (combined word processor, spreadsheet, and database) and BBC BASIC with Z80 assembler, plus RS232 connectivity and RAM/EPROM expansion cartridges. The unit was purchased from Sharp's Inc. for $399.95. | Cambridge Z88 |
| AUTO FILES: An Under Utilized Facility | Explains the AUTO file facility found in RAMEX, MILLENIA K, and SPDOS for the TS2068, which allows automatic loading of BASIC or machine-code programs when a disk is initialized. Includes a BASIC shell program of approximately 30 lines for DOS menu navigation. A tutorial for users wanting to create auto-booting disks. | Timex/Sinclair 2068, Type-in program |
| Beginning Z80 Machine Code Part Eleven | The last instructions we have to discuss are the group that deal with interrupts. This will of necessity be a brief discussion, as it is a most difficult subject and volumes could be written. In addition, use of the interrupts are very hardware dependent. | Timex/Sinclair 1000, Timex/Sinclair 2068, Type-in program |
| Beyond the TS 1500 (ZX81/TS 1000) User Manual: Your RAM Memory | Here are some corrections to the first installment of this series which appeared in the July/August ’87 issue of TDM. On page 30, lines 5 and 6, right column, should read as follows: “displacement between E_LINE and STKEND as after the line has been placed in the Program area, the Line being typed + work space area no longer exists and the”. | Sinclair ZX81, Timex/Sinclair 1000, Timex/Sinclair 1500 |
| CLASSY Part Four | The concluding installment of a series on a custom font-printing machine-code routine for the TS2068, providing code for lines 100-220 and demonstrating keywords including AT, OR, TO, and NOT. Describes a user-definable jump table for STEP, AND, THEN, and STOP. Readers will need earlier installments to assemble the complete routine. | Timex/Sinclair 2068, Type-in program |
| Dealing with Trump Card: The 768K RAM Add-on for the QL | Miracle Systems’ QL TRUMP CARD is the last word in disk interface/RAMcard/toolkit hardware for the QL–providing a total of 896K RAM–and another triumph for Tony Tebby. Built-in firmware includes dynamic and static RAMdisk drivers–a shortcoming of the Sandy SUPERQBOARD is that the RAMdisk driver is loaded as software, a dynamic printer buffer, a versatile screen dump utility, and a 128K RAM simulator. | Sinclair QL |
| From the Editor's Cluttered Desk | With this issue of TIME DESIGNS, we have come to a number of crossroads. Most predominately on my mind, is that we have just wrapped up three years of publishing and about to start our fourth year. Therefore, consider this an “Anniversary Issue”. | Cambridge Z88 |
| Great TS User Groups | Have we listed your group’s information lately? Send us the club’s name/address for publication. Get noticed. Bring in new members! North East Florida T/S Users Group c/o John Kuhn Greater New Haven Timex Sinclair User Group c/o Dennis N. Silvestri New York Timex/Sinclair Enthusiasts c/o Joe Newman The old T.O.P.S newsletter for users of the | |
| In the Mailbag | Reader letters cover a range of topics including diagnostic software ideas, Spectrum utility program listings, a QL bar code reader inquiry, T/S GRADER freeware for the TS2068, and several BASIC type-in programs including a Christmas program and a lottery number generator. A varied letters column reflecting the broad interests of the readership. | Sinclair ZX Spectrum, Timex/Sinclair 1000, Timex/Sinclair 2068, Type-in program |
| MANDELBROT -- A Fractal World | Welcome to the magical world of fractal geometry (“the mathematical study of forms having fractional dimension”). Fractal geometry has been used to build complex mountain ranges and “growing” plants by Lucas Films. It has also been helpful in the study of the baffling world of turbulence. | Sinclair QL, Type-in program |
| RLE Graphics (Part Two) | My how time flies when you’re having fun!! I dug through the files and was amazed that almost a full year has passed since I submitted the original RLE article (Jan/Feb ’87). In that article I explained the use of an RLE DECODER program, a short program that would take an RLE encoded picture, and decode it into a form that our beloved TS2068 could display. | Timex/Sinclair 2068, Type-in program |
| T/S 1000/ZX81 Programming SRAM HI*RES Part III | This is the final episode of a tutorial “mini-series” on the use of SRAM HI*RES EXTENDED BASIC (SHR-EB). This time around, we’ll wrap up our coverage of UDG’s (User-Defined Graphics), and examine some of SHR-EB’s truly unique aspects: Sprites, window-scrolls (“pseudo-sprites”), and the F-SAVE tape routines. WHAT A DEAL! | Sinclair ZX81, Timex/Sinclair 1000 |
| Time Designs Tests: A Professional Monitor, a unique CADPAK, and some games! | We were supposed to discuss Digital Precision’s DESKTOP PUBLISHER Special Edition and the QUANTA Library’s PAGE DESIGNER this month, but the great facilitator failed to come through with the former, and an updated version of the latter did not arrive in time. C’mon great facilitator! We’ll report on these next time, if. . . . | Sinclair QL |
| TS2050-ZX Modem Modification Project | OBJECTIVE: This Hardware/Software modification will allow the user to operate the Westridge TS2050 Modem with the Sinclair ZX Interface 1 and Microdrives. WHY IT DID NOT WORK: The reason that the TS2050 modem WILL NOT work “as-is” is because of an “address conflict” between the Interface-1 and the TS2050. | Sinclair ZX Spectrum, Timex/Sinclair 2068 |
| ZEBRA/TIMEX FDD Disk System: Directory Track Reader | A technical article on the directory structure of the Zebra disk drive system (40 tracks, 16 sectors per track), with a BASIC program for reading and parsing directory entries from track 4. Useful for programmers working with Zebra FDD hardware and wanting to access disk metadata programmatically. | Timex/Sinclair 2068, Type-in program |
