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Atari 520STFM

Atari ST · 1986

The ST as most people owned it: floppy drive and modulator both built in, 512K, one box. This is the volume machine of the European ST market and the one the games were written against. The internal single-sided drives were later replaced by double-sided; which one is fitted decides what disc images will run.

As catalogued

Maker
Atari
CPU
Motorola 68000-8
Memory
512K, 1MB
Styles
520STFM, 520STM (no drive)
Regions
PAL, NTSC
Chassis
wedge, built-in floppy
OS
TOS 1.02 / GEM

Chips

6
CPU
Motorola MC68000-8, Signetics SCC68000
Shifter
C025912, C300589 (STE)
GLUE
C025913, combined in the STE's GST MCU
MMU
C025912-002, combined in the STE's GST MCU
Sound
Yamaha YM2149F
TOS ROM
TOS 1.00, TOS 1.02, TOS 1.04, TOS 1.06, TOS 1.62, TOS 2.06

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