Scorpion (computer)

The following is a list of clones of Sinclair Research's ZX Spectrum home computer:

The only official clones of the Spectrum were made by Timex. There were three models developed, only two of which were released:

A significantly more sophisticated machine than the original Spectrum. The most significant changes were the addition of a cartridge port, an AY-3-8912 sound chip and an improved ULA giving access to better graphics modes. The TS2068 was marketed in the United States, while very similar machines were marketed in Portugal and Poland as the Timex Computer 2068 (TC2068) and Unipolbrit Komputer 2086 (UK2086) respectively. A small amount of TC2068 were also sold in Poland.

A machine similar to the Spectrum 48K, but with the improved ULA from the TC2068 allowing access to the improved graphics modes. Marketed only in Portugal and Poland.

A never released variant of the TS2068 with 16 KB of RAM.

ATM (ATM Turbo) was developed in Moscow, in 1991, by two firms, MicroArt and ATM. It has Z80 at 7 MHz, 1024 KB RAM, 128 KB ROM, AY-8910 (two ones in upgraded models), 8-bit DAC, 8-bit 8-channel ADC, RS-232, Centronics, Beta Disk Interface, IDE interface, AT/XT keyboard, text mode (80×25, 16 possible colours, 8×8 pattern), and three graphics modes.

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