San Jose, CA 95157


Kit to increase the ZX81 to 2K.
Provides all of the capabilities of CIOUTIL, but 6 times faster. Writes data to cassettes and reads data from cassettes at a speed which is 6 times faster than the TS1000/ZX81 SAVE and LOAD commands.
TS 1000
CFASTDATA and CFASTLOAD. When both programs are used, you may LOAD programs and data at a speed which is 6 times faster than the TS1000 and ZX81 LOAD and SAVE commands. CFASTLOAD can be configured to your needs.
TS 1000
Utility to selectively read and write strings and arrays to a cassette. Routines occupy approximately 500 bytes and require at least 2K RAM.
TS 1000
Many vendors sold ZX80/ZX81/TS 1000 compatible edge connectors in solder-tail and wire-wrap versions. The wire-wrap connector could be used with a small printed circuit board to build a feed-through device that would allow for connecting another expansion unit.
TS 1000
Construct an RS232/TTL level converter from inexpensive components. This converter, when used with the Cosmonics TTL Serial Input/Output Port Package, allows connecting a TS1000 or ZX81 to most RS232C peripherals.
TS 1000
Plans and parts to build a serial output port using two integrated circuits. Plans also available separately.
TS 1000
Provides RS232 input timing and ASCII to Sinclair character translation.
TS 1000
Provides correct RS232 timing and translation to ASCII.
TS 1000
Software and plans for building input and output ports which fit inside a ZX81 or TS1000. When used with an RS232/TTL level converter, can connect to most RS232C peripherals.
TS 1000


  • Editor Ramblings
    Mistakes in the January 1983 issue. Sidewinder, a new printer from Mindware. Synchro-Sette tapes bulk produced. CFASTDATA, CFASTDUET from Cosmonics. Printer interface from CRC Software. Timex Computer Club; Ramblings newsletter. New user group newsletters.
  • Letters to the Editor
    Commentary on VU-Calc; Sinclair and Mindware printers; sharing data across programs.
  • More Software: FAST DUET, LINGO 1, Dominoes
    Product reviews of FAST DUET by Cosmonics, LINGO 1 by Mornae Software, Dominoes by JPR Software.
  • New Products and Services (Syntax v4 n4)
    New products from Artisan Electronics, Spectra Computer Products, Jim Giddings, L. Harmon, Cosmonics, Memotech, Hawg Wild, Electronic Specialists, Sinware, Cottage Technology, Advanced Interface Designs, Software Unlimited.
  • Resources (Sync v2 n2)
    Listing of new user groups, books and other resources.
  • To Buy or Not to Buy? Software
    Reviews of the Programmers’ Toolkit and Graphics Toolkit from Softsync, CIOUTIL by Cosmonics, Flight Simulation from Timex.




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