Byte

Timeline from pre-1974 to 1985. ZX80 mentioned.

Interface a surplus keyboard to the ZX80.

Writer wants to know if ZX81 keyboard can be expanded based on article in March 1982 issue of Byte.

Article about using computing to help with astronomy.

Under “Market Share for the PC”: estimated that more than 750,000 TS1000 units shipped to date. Sinclair talking about microdrive for the Spectrum. Memotech working on 5 1/4″ disk drive for the 1000.

Under “Sinclair News”: estimated that more than 600,000 ZX81 and TS1000 units sold to date. Sinclair ceasing distribution in US; Timex taking over.

Letter from Bill Jones noting that he’d built a Timex 1000 and wanted to build another to make a multi-tasking system.

Triangle Sinclair Users Group (TSUG) meets every month in North Carolina.

Correction to article about expanding ZX80 RAM. Notes on getting ZX80 to recognize 48K.

Upgrading the ZX-80 to 16K with a Jade Computer Products MEM-16151K S100 board. The memory board uses 2114-type static RAM instead of the dynamic RAM found in the Sinclair upgrade.

Overview of the show. Mentions Sinclair and add-ons. Photos of dk’tronic keyboard, Jupiter Ace.

Information about T-S Horizons magazine.

Info about T-S Horizons, then a monthly newsletter.

Announcement for Syntax ZX80.

Bon Mot (Luther Gotwald, Jr.), Musical Scales (Rave Research), Schedi-Mort (E. Arthur Brown) listed.

Software received by Byte during the prior month. Super Z, extended BASIC commands for the Sinclair ZX-80 and ZX-80 Home Computer Package, both by Lamo-Lem, are mentioned.

List of products received by system. Home financial package, mortgage analysis, IRA account planner and bond investment programs from Florida Creations mentioned.

Financial-planning program from Computer Ware Publishing.

Stock control system for Timex/Sinclair 2000 from Kemp Ltd.

AC and DC Circuit Analysis from Computer Heroes; 1983 Tax Return Helper from K Soft; RPNZL Programming System from The Golden Stair.

Describes the use of a ZX Spectrum to collect and process astronomical data.

Editorial about handheld and small computers. Sinclair ZX80 is mentioned.

Review and construction guide to the MicroAce.

The new ZX80 microcomputer from Sinclair Research Ltd is a remarkable device. Although first announce to the North American public in February, 1980, the microcomputer did not become available until the fall.

Overview of the Spectrum.

Mark Tepper is forming a user group in the Finger Lakes region of NY.

Astronomers are using microcomputers in a variety of applications. “Andrew Hollis has done a particularly capable job on a low-cost Sinclair ZX81.”

Product announcment for Memotech 32K Memopak, HRG, Centronics and RS232 interfaces.

Research In Speech Technology (R.I.S.T) Parrot module; announcement for Sin-Time Review, a bi-monthly about the Timex and Sinclair computers.

Letter to Steve Ciarcia asking about floppy disk. Ciarcia mentions the FDC-100 ($199) from Compusa.