Atari:

1983?: Atari 400:

- 16K RAM; 320x192; plug-in game cartridges; $A599;

1984: Atari 800XL:

- 64K RAM; 320x192;plug-in games cart;24K ROM; $A599

ST computers:

1985: 520ST:

- 8MHz 16bit 68000 CPU; 512K RAM;

- TOS operating system; MIDI in/out;

- 3 independent sound channels (30-125k Hz);

- 640x200 x 4colors; 320x200 x 16colors;

- 2 x 360K FDD's + 12" color mon. = $US999;

1986: 1040ST:

- 8MHz 68000 CPU; 1Mb RAM; TOS; 3 sound ch.;

- Midi in/out; video as for 520ST;

- 720K FDD + 12"color mon. = $US1200;

- ext. 20Mb HDD = $800;

- later to have 1st affordable CD-ROM drive as extra

Acorn:

1987: Archimedes:

- 4MHz, 32bit RISC Acorn ARM CPU;

- Arthur op.system;

- 640x256 x 256colors! std monitor;

- 640x512 x 16colors multisync. monitor!;

- 8 sound channels in stereo;

A305: 512K RAM + 800K FDD + mono.mon. = $A3600

A310: 1Mb else as for A305 = $A3800

A410: 1Mb + HD controller + mono.mon = $A5300

A440: A410 but 4MB RAM + 20Mb HDD = $7800