ATM (computer)

Graphics modes

For compatibility purposes, the original 256 x 192 ZX 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.
• 320 x 200 mode with a 16 colours raster mode (a two-pixel chunky mode, not planar like EGA). Two games for this mode were converted directly from PC: Prince of Persia and Goblins, and one from Sony PlayStation: Time Gal. Other games that use this mode exist, like Ball Quest, released in August, 2006.

Palette:

• 16 colors from a 64 color palette (6-bit RGB) can be set for all modes.

Operating systems

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

Software

• ATM Turbo
• Virtual TR-DOS

ATM Turbo 1 (1991)

Features:

• 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):

• 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):

• 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+):

• 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, with full support of border and multicolor effects