ATM (computer)

Overview

ATM Turbo

aka	АТМ-ТУРБО
developer	MicroArt and ATM; NedoPC
type	Home computer
release date	1991
os	ATM Turbo 1: Sinclair BASIC, TR-DOS, CP/M ATM Turbo 2+: iS-DOS/TASiS, DNA OS, Mr Gluk Reset Service
cpu	Zilog Z80
cpu speed	3.5 and 7 MHz; 14 MHz (ZX Evolution)
memory	128 to 512 KB (ATM Turbo 1); 128 to 1024 KB (ATM Turbo 2+); 4MB RAM (ZX Evolution)
storage	Floppy disk, IDE devices (ATM Turbo 2)
memory card	SD card (ZX Evolution)
display	SECAM TV, EGA monitor, VGA monitor (ZX Evolution)
graphics	256x192, 320x200, 640x200
sound	Beeper (1-bit); AY-3-8910; Covox
compatibility	ZX Spectrum
related	Pentagon (computer)

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 kB RAM, 128 kB ROM, 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.

The ATM can be emulated in Unreal Speccy v0.27 and higher.[3]

History

Models

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]).

ATM Turbo 1 (1991)

Features:[13][14]

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); 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
Firmware: 48K BASIC / 128K BASIC; TR-DOS; CP/M 2.2
Supported external drives: tape recorder (audio cassette); disk drive
Sound devices: standard 1-bit beeper; AY-3-8910; Covox
Additional devices: SECAM encoder for connection to a color TV; single-channel DAC; modem; parallel interface for connecting a printer; stereo audio amplifier (2x1W)
Keyboard: mechanical matrix, standard ZX Spectrum layout (40 keys) or extended (64 keys)

ATM Turbo 2 (1993)

New features (relative to ATM Turbo 1):[13][14]

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
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: SECAM encoder

ATM Turbo 2+

New features (comparing to ATM Turbo 2):[14]

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
The xBIOS ROM has been specially developed for ATM Turbo 2+ with support for virtual floppies
ROM version of Mr Gluk Reset Service
Removed: Modem

ZX Evolution

New features (comparing to ATM Turbo 2+):[14][15]

Turbo mode up to 14 MHz, switchable via menu and software
RAM: 4MB
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 similar to that of the Pentagon

ATM (computer)

History

Characteristics

Graphics modes

Operating systems

Software

Models

ATM Turbo 1 (1991)

ATM Turbo 2 (1993)

ATM Turbo 2+

ZX Evolution

References