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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 Lambda 8300 was a Sinclair ZX81 clone from Lambda Electronics Limited of Hong Kong. [1] [2] [3] It had a modified ROM (including extra semigraphic characters) and extra hardware, making it not fully compatible. [4] [5] Total compatibility could be achieved by installing a ZX81 ROM. [1]
Leningrad is a series of Soviet clones of the ZX Spectrum.The Leningrad 1 [72] was released in 1988, and was a clone of the 48K – it became the cheapest out of all the mass-made clones. They computer was designed to be as simple as possible, and more compact than the other clones which were available at the time.
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Unauthorized ZX81 clones were produced in several countries. The ZX81 was designed to be small, simple, and above all, inexpensive, with as few components as possible. Video output is to a television set rather than a dedicated monitor. Programs and data are loaded and saved onto compact audio cassettes.
The TK82C was replaced by the TK83 (it used a ULA similar chip, as the original ZX81) and by the TK85 (a 16 KB RAM version with a case similar to ZX-Spectrum), more robust and with a better design. Microdigital later produced the TK90X and TK95 , which were clones of the ZX Spectrum .
Released in 1985, the CZ 1000 was a rebranded version of the Timex Sinclair 1000, itself a clone of the Sinclair ZX81.This compact and minimalist machine came equipped with just 2 KB of RAM, making it an entry-level computer ideal for beginners and enthusiasts.
General features of the Apply 300 match those of the original ZX81 machine, with a few enhancements. The power supply was internal and the machine featured a Z80A processor at 3.25 MHz, 8K ROM and 32 or 48 KB of RAM. [6] [1] The keyboard was chiclet type, but offered 69 keys, including cursor keys and numeric keypad. [6] [1]