Olivetti PCOS Ver.4
ROM information for this Olivetti M20 disk.
Here you can see exact dump's name, size CRC, SHA1 and region.Set(s) list:
m20: pcos41a
Information last updated on November 08, 2020.Set's name: "pcos41a"
MAME's description: Olivetti PCOS 4.1a
ROM name="pcos_41a.img" size="286720" crc="f2fa9799" sha1="6d01e7ecc91211e588b4af3c77b972b20deee63b"
ROM name="pcos_41a_tools.img" size="286720" crc="24936905" sha1="d27a2cae62fd62f07dce0e3df397d2dea4c1253b"
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