IBM Personal Computer

This photo shows a PC/XT and a PC 5150 (below)

Machine type 5150
Serial 12270905150
Manufactured by IBM Corp. (made in USA)
Date July 1984 (*)

Physical description

Type Desktop
Dimensions (HxWxD) 140 x 495 x 408 mm
Drive bays 2 x 5.25" full height
Power supply 130 W, 220 VAC

Main board

BIOS IBM, Oct. 27, 1982
Processor AMD D8088 (16-bit) DIP (dated 8420)
Coprocessor Socket for optional 8087
Memory 256 Kb 300 ns(?) DRAM DIPs on planar (soldered chips dated 8419, additional chips dated 8446)
Min on system board 64 Kb (one bank, 64 K x 9)
Max on system board 256 Kb (three additional banks, each 64 K x 9)
Max. using adapter cards 640 Kb
Bus ISA 8-bit
Expansion slots 5 (two available)
Ports Keyboard, cassette


Controller ISA 8-bit, supports two 360 Kb units (chips dated 8428, cables July 1984)
Video ISA 8-bit CGA adapter (dated 8428)
Parallel port ISA 8-bit (unk. brand/model, dated 8440) ADDITION


Diskette drive 360 Kb 5.25" full -height (dated 8333)
2nd Diskette drive 360 Kb 5.25" full -height (dated 8344) ADDITION?


Acquisition Summer 99, paid 30$ together w. 5153 monitor, keyboard, manuals and many floppy disks at a flea market
Condition Excellent, almost perfect
Current status All hw working
Spare parts Power supply, floppy drive (from a 5160), accessories (also from a 5160)


(*) probably built July 1984, but sold/updated Nov. 1984 (parallel card and 2nd drive were added, Keyboard is dated 31/10/1984, Monitor June 1984).


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This page was first published on the web on Nov. 11, 2001
Last revised May 24, 2004