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View Full Version : Mysterious EPROMs



TheRedEye
09-18-2002, 02:13 AM
http://page5.auctions.yahoo.co.jp/jp/auction/e15473875

Any ideas?

CPUWIZ
09-18-2002, 03:51 AM
Those don't look like EPROM's, they are most likely mask ROM's and they do look like they are for an arcade machine.

Just a guess ...

AlanD
09-18-2002, 05:50 AM
Rainbow TOS is an operating system for Atari ST computers.
AlanD

Tempest
09-18-2002, 08:24 AM
Yep those are TOS chips for the Atari ST. Rainbow TOS (TOS 1.4) was the final TOS (The Operating System) upgrade for the regular ST line before they went to Mega ST's. In case your wondering, it's called Rainbow TOS because the Atari Fuji symbol in the information box is rainbow colored.

Nothing rare to see here. Move along...

Tempest

CPUWIZ
09-18-2002, 02:02 PM
Makes sense, I wouldn't have known that, I was a Amiga freak.