Atari STM

The second model in the ST range, the STM was virtually identical to the original ST, but with a built-in TV modulator (but still with an external floppy drive.) The machine cost £400 when released.

Title image
Manufacturer Atari
Processor 68000
Speed (MHz) 8
RAM (KB) 512
RAM expandable to (KB) 1024
ROM (KB) 192
Sound 3 channels with noise
Keyboard type Typewriter-style
Number of keys 95
Dimensions (mm) 60x740x(unknown)
Weight (g) (unknown)
  • Cartridge port (40 way edge connector)
  • MIDI-in port (5 pin DIN)
  • MIDI-out port (5 pin DIN)
  • RF output
  • RGB/mono/composite monitor output (13 pin DIN)
  • external floppy connector (14 pin DIN)
  • DMA port / hard disc interface (19 pin D-type)
  • Centronics printer port (25 pin D-type)
  • RS232 interface (25 pin D-type)
  • mouse / joystick port (9 pin D-type)
  • joystick port (9 pin D-type)


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