ATM (computer)

  (Redirected from ATM Turbo)

ATM (ATM Turbo) is a ZX Spectrum clone, developed in Moscow in 1991,[1] by two firms, MicroArt and ATM. It offers enhanced characteristics, compared to the original Spectrum, such as a 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 (80x25, 16 colours, 8x8 pattern), and three new graphics modes.

ATM Turbo
Computer board atmturbo2.jpg
ATM Turbo 2+ motherboard
DeveloperMicroArt and ATM; NedoPC
TypeHome computer
Release date1991; 31 years ago (1991)
Operating systemATM Turbo 1: Sinclair BASIC, TR-DOS, CP/M
ATM Turbo 2+: iS-DOS/TASiS, DNA OS, Mr Gluk Reset Service
CPUZilog Z80 @ 3.5 and 7 MHz; 14 MHz (ZX Evolution)
Memory128 to 512 KB (ATM Turbo 1); 128 to 1024 KB (ATM Turbo 2+); 4MB RAM (ZX Evolution)
StorageFloppy disk, IDE devices (ATM Turbo 2)
Removable storageSD card (ZX Evolution)
DisplaySECAM TV, EGA monitor, VGA monitor (ZX Evolution)
Graphics256x192, 320x200, 640x200
Soundone-bit speaker; AY-3-8910; Covox
Sinclair ZX Spectrum
Related articlesPentagon (computer)

The ATM can be emulated in Unreal Speccy v0.27 and higher.


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 ATM and MicroArt, then the firms separated and production ended.

In 2004 NedoPC (Moscow) resumed production.[2] New versions called ATM Turbo 2+ and ZX Evolution were introduced.


Graphics modesEdit

For compatibility purposes, the original 256 x 192 ZX Spectrum mode is available.

New graphics modes offer expanded abilities:


Operating systemsEdit

48 Sinclair BASIC, 128 Sinclair BASIC, TR-DOS, CP/M, iS-DOS, TASiS, DNA OS, Mr Gluk Reset Service.



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+. IDE is available since v6.00.JIO0UBH9BY8B9T7GVC6R The latest model is 7.18.[5][1]

ATM Turbo 1 specifications (1991)Edit

  • Processor : Zilog Z80 at 3.5 and 7 MHz (turbo mode)
  • RAM : 128 to 512 KB
  • ROM : 64 to 128 KB
  • 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), EGA-like mode 320x200, 16 colors per pixel; 640x200 high resolution mode, 2 out of 16 colors per 8x1 pixels
  • Color palette : 64 colors, 16 can be used at the same time
  • Firmware: BASIC48 / 128; TR-DOS; CP/M 2.2
  • Supported external drives: tape recorder; drive
  • Sound devices: standard one-bit speaker; AY-3-8910; Covox
  • Additional devices: SECAM encoder for connection to color TV; Single-channel DAC; Modem; Centronics interface for connecting a printer; Stereo audio amplifier 2x1W
  • Keyboard : mechanical matrix, standard for ZX Spectrum (40 keys, or extended, 64 keys)

[6][7][circular reference]

ATM Turbo 2 (1993)Edit

New features (relative to ATM Turbo 1):

  • 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 EGA and 640x200 modes
  • Supported external drives: controller for IDE devices (hard drives of any capacity, CD-ROM ); Digital PLL added to floppy controller
  • Additional devices: eight-channel DAC
  • Keyboard: XT keyboard support, on-chip RAM 537RU10
  • Removed the following devices: SECAM encoder

[6][7][circular reference]

ATM Turbo 2+Edit

New features (comparing to ATM Turbo 2):

  • RAM: 128 to 1024 KB
  • Additional devices: RS-232 interface; Channel switch for DAC
  • Keyboard: support for XT and AT keyboards, based on the 1816BE31 (i8031) microcontroller
  • Removed the following devices: Modem
  • The xBIOS ROM has been specially developed for ATM Turbo 2+ with support for virtual floppies. Also for ATM Turbo 2 (+) there is a ROM version of Mr Gluk Reset Service.

[7][circular reference]

ZX EvolutionEdit

New features (comparing to ATM Turbo 2+):

  • Turbo mode up to 14 MHz, switchable via menu and software
  • 4MB RAM: both ATM Turbo 2 (+) and Pentagon 1024 Expanded Memory Supported
  • 2 expansion slots according to the ZXBUS standard for connecting General Sound, etc.
  • Flexible architecture based on FPGA (EP1K50) - third-party firmware available
  • SD card with transparent BIOS support (EVO RESET SERVICE)
  • Added VGA video output
  • Non-volatile clock according to Mr Gluk standard, IDE interface according to Nemo standard, mouse according to Kempston Mouse standard
  • Video scan rate from the Pentagon computer, with full support of all border and multicolor effects

[7][circular reference]


  1. ^ a b c "КОМПЬЮТЕРУ АТМ-ТУРБО 30 ЛЕТ!".
  2. ^ "Официальный сайт группы NedoPC!".
  3. ^ "Официальный сайт поддержки ATM-turbo 1,2,2+".
  4. ^ "Virtual TR-DOS".
  5. ^ "ATM-Turbo 1,2(+),3/ZX-Evolution".
  6. ^ a b "Prince of Persia 1 ATM Turbo".
  7. ^ a b c d ru:ATM Turbo