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Fully functional, very early ‘Revision A’ production model of the IBM Personal Computer (Model 5150), which was first released by International Business Machines (IBM) on August 12, 1981, and features early issue 5150 hallmarks such as two case mounting screws, a bronze-tone power supply unit (PSU) with non-recessed nuts, a 16KB-64KB motherboard, and the absence of the ‘B’ marking on the back of the unit, which features a bar code keyboard label with Serial No. 0111111. The top of the PSU bears a label numbered “IBM 1800833,” and stamped “S, HP.” Included with the computer is an IBM Personal Computer Color Display with 12.5˝ screen and label to the reverse marked “Model 5153” and “S/N 1279919”; an IBM Personal Computer ‘Model F’ keyboard, 18˝ in length (1501100); and the original boxes for both the keyboard and the IBM PC, which features matching production numbers: “Item No. 5150013, Serial No. 0111111.”
Accompanied by original receipts, paperwork, and publications for the IBM PC, as well as a group of eight slipcased IBM software manuals, which includes: Disk Operating System, Version 3.20; Disk Operating System, Version 4.00; Disk Operating System: Technical Reference; Disk Operating System; Guide to Operations; Basic; Technical Reference: Personal Computer XT and Portable Personal Computer; Guide to Operation: Personal Computer AT. The IBM PC and its peripherals have been tested to be in working order and are in fine cosmetic condition.
Released in 1981, the IBM Personal Computer model 5150 was the first computer in the IBM PC model line and the first home microcomputer to use the term ‘personal computer’ or PC. Powered by an x86-architecture Intel 8088 processor, the machine was based on open architecture and third-party peripherals. Over time, expansion cards and software technology increased to support it. The 5150 had a substantial influence on the home computer market, establishing design standards still in use to this day, and was peerless upon its introduction; the only significant competition it faced from a non-compatible platform throughout the 1980s was from Apple's Macintosh product line, as well as consumer-grade platforms created by companies like Commodore and Atari. Most present-day personal computers share architectural features in common with the original IBM PC, including the Intel-based Mac computers manufactured from 2006 to 2022.
