The ATM Turbo (ru: "АТМ-ТУРБО"), also known simply as ATM (from ru: "Ассоциация Творческой Молодёжи", meaning "Association of Creative Youth") is a ZX Spectrum clone, developed in Moscow in 1991,[1] by two firms, MicroArt[2] and ATM.
It offers enhanced characteristics, compared to the original Spectrum, such as a Z80 at 7 MHz, 1024 kBRAM, 128 kBROM, AY-8910 (two chips in upgraded models), 8-bit DAC, 8-bit 8-channel ADC, RS-232, parallel port, Beta Disk Interface, IDE interface, AT/XT keyboard, text mode (80x25, 16 colours, 8x8 pattern), and three new graphics modes.
ATM was developed in 1991 based on the Pentagon, a ZX Spectrum clone popular in Russia. In 1992 an upgraded model was introduced, named ATM Turbo 2.[1] Up to 1994 the computer was produced by ATM and MicroArt; later the firms separated and production ended.
In 2004 NedoPC from Moscow resumed production.[4] New versions called ATM Turbo 2+ and ZX Evolution were introduced.[5]
Characteristics
Graphics modes
For compatibility purposes, the original 256 x 192ZX Spectrum mode is available.
New graphics modes offer expanded abilities:
640 x 200 mode, with 2 out of 16 colors per 8x1 pixels. The Profi offers a similar mode, but the ATM can use the full 16 colour set for both ink and paper.
Many models exist. Models before version 6.00 are called ATM 1, later models are called ATM 2(2+) or ATM Turbo 2(2+) or simply Turbo 2+. An IDE interface is available since v6.00.JIO0UBH9BY8B9T7GVC6R (the latest model is 7.18[12][1]).
Memory manager: standard for ZX Spectrum 128 (memory over 64KB is addressed through a window in the upper 16KB of address space), with the ability to include a zero page of RAM in the lower 16KB of the address space
Graphics video modes: Standard ZX Spectrum mode (256x192, 2 colors per block of 8x8 pixels from 16 colors); 320x200 with 16 colors per pixel; 640x200 high resolution mode with 2 out of 16 colors per 8x1 pixels
Color palette: 64 colors, 16 can be used at the same time
Memory manager: the ability to include any page of RAM or ROM in any of the quarters of the address space
Text mode: 80x25 text video mode, characters are stored in the character generator ROM. It is possible to set any of 16 colors for the symbol and background
Hardware vertical scrolling in 320x200 and 640x200 modes