The PC XT (eXtended Technology), Model 5160, was IBM’s encore to the original PC. It used the same 4.77MHz 8088 CPU as its predecessor but offered incremental improvements such as more expansion bus slots, greater mass storage capabilities, better screen resolution, and MS-DOS 2.0.
IBM also offered new options for the PC, including an expansion unit that housed additional storage in a matching cabinet to the computer.
IBM later offered a version of the PC XT that would run its mainframe applications. The Personal Computer XT/370 used the Virtual Machine/Personal Computer (VM/PC) control program that provided compatibility with the Virtual Machine/Conversational Monitor System (VM/CMS) mainframe program.
Introduced: March 8, 1983
Original Retail Price: $4,995
Base Configuration: 4.77MHz 8088 CPU, PC-DOS 2.0, eight ISA slots, 128K RAM (640K max), 40K ROM, 5.25-inch floppy disk drive, keyboard/keypad, RS-232C port, BASIC, operations manual
Video: 25-line x 80-column text, 640 x 200 graphics
Size/Weight: 20 x 16 x 6 inches, 32 lbs.
Important Options: Model 002 Expansion Unit; second 5.25-inch floppy disk drive; 10MB hard disk drive; Color Display, Enhanced Color Display, or Monochrome Display monitor; EGA or CGA card; game port; PC Color, PC Compact, or Graphics Printer; technical reference; hardware maintenance and service manual