PS/2 Model 60 (8560) BIOS
27256 x 4

ZM101: 90X7423 or 90X6816 externally, 90X6816 internally
ZM111: 90X7426 or 90X6817 externally, 90X6817 internally
ZM116: 90X7420 or 90X6815 externally, 90X6815 internally
ZM118: 90X7429 or 90X6818 externally, 90X6818 internally

02/13/1987