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IBM 5160  -  Some examples of [62X0890][68X4370] BIOS ROM sets


IBM sourced its ROM's from various makers.  This page shows some examples of that variation.

U19:   • 32K x 8-bit   • IBM part number 68X4370   • Supplied here as an AMI  S23256B U18:   • 32K x 8-bit   • IBM part number 62X0890   • Supplied here as a Motorola SCM66115P