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The ZX81 is a home computer that was produced by Sinclair Research and manufactured in Dundee, Scotland, by Timex Corporation.It was launched in the United Kingdom in March 1981 as the successor to Sinclair's ZX80 and designed to be a low-cost introduction to home computing for the general public.
Some glyphs also received a different design in the ZX81 system font, noticeable on the *, the slashed and less rounded 0, and the less rounded $, C, G and J. In the later ZX Spectrum the entire character encoding was replaced with the ZX Spectrum character set , which is a derivative of ASCII and includes lower case letters and more.
In recent years retrocomputing enthusiasts created various clones or recreations of the ZX80/ZX81. ZX81+38 [48] ZX80/ZX81 Double Clone [49] and related ZX80/ZX81 Project [50] ZX97 [51] Minstrel [52] Wilco/Baffa's one [53] TELLAB TL801, an Italian clone designed in 2002 that can emulate both the ZX80 or ZX81. Selection between machines is made ...
The ZX81 8K BASIC used the shorter forms GOTO, GOSUB, CONT and RAND, whereas the Spectrum 48 BASIC used the longer forms GO TO, GO SUB, CONTINUE and RANDOMIZE. The ZX80 4K BASIC also used these longer forms but differed by using the spelling RANDOMISE. The ZX81 8K BASIC was the only version to use FAST, SCROLL, SLOW and UNPLOT.
1K ZX Chess's code takes up only 672 bytes in memory, [2] but implements chess rules except for castling, promotion, and en passant, including a computer opponent. [3] It was the smallest implementation of chess on any computer at the time.
The program simulated the essential aspects of "a highly-manoeuvrable light aircraft" [6] in flight. [7] Despite the limitations of the ZX81, it offered a basic graphical view of the instrumentation and view through the front window, as well as navigational aids [6] and a full-perspective moving view of the final runway approach.
This page was last edited on 9 February 2023, at 08:20 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.
Tasword is a word processor for microcomputers developed by Tasman Software. [1] The first version was released for the ZX81 in 1982 and spawned two major revisions in addition to several add-ons and, later, tailored versions for the +2 and +3 Spectrum models, the SAM Coupé, [2] the MSX, [3] the Timex Sinclair 2068 [4] and the Amstrad CPC [5] range.