Cognivox
Speech recognition unit/response unit. Library of 32 words or short phrases. Can be trained to recognize voice commands. Requires 16K. It was made for other home computers but there’s no evidence it was produced for the Sinclair.
Timex/Sinclair 1000
WIDGITAPE
Standard cassette recorder modified for computer control. Offers file directory, read/write from programs. Uses endless loop tapes.
Universal Printer Driver
Supports printing to via wide variety of printer interfaces and printers. 16K.
Universal Printer Driver Read More »
ZT21000
Expansion unit for ZX81/TS 1000. Promised 64-key auto-repeat big keyboard, 15 colors, 32K RAM onboard, 3 kinds of sound, 33 new BASIC commands, multiple statement and input lines, 6 video pages, high resolution (256×192 pixels) and animation capabilities, user-definable characters and character sets and up to 9 user-definable functions. RS232 and parallel interfaces, two Atari-compatible