IBM PC, (IBM Personal Computer, PC)
the progenitor of the PC compatible hardware platform. The original IBM version was model number 5150 with Intel8088 running at 4.77 MHz and 16 or 64 Kibibyte of RAM, introduced on August 12, 1981. Pricing started at US$1,565 (equivalent to $4,080 in 2015) for a configuration with 16 K RAM, Color Graphics Adapter, and no disk drives. Most 5150s had one or two 5.25-inch floppy disk drives, either single-sided double-density (SSDD) or double-sided double-density (DSDD) [1] .
The XT with 256 K RAM (expandable up to 640 K) and built-in hard drive followed in 1983, the AT with 80286 processor @ 8 MHz in 1984, and PS/2 in 1987, with the follow-on of the IBM PC series until 2000, along with 32-bit x86 compatibles. The term "IBM PC compatible" is not commonly used any more because most current mainstream desktop and laptop computers are based on the PC architecture with x86-64 processor and IBM no longer making PCs [2]
In July 1980, William C. Lowe assembles the members of "Project Chess", known as the "Dirty Dozen", the twelve engineers chosen to design and build a prototype personal computer, in Boca Raton, Florida. Don Estridge is project manager, Jack Sams heads the software effort [4] .
the progenitor of the PC compatible hardware platform. The original IBM version was model number 5150 with Intel 8088 running at 4.77 MHz and 16 or 64 Kibibyte of RAM, introduced on August 12, 1981. Pricing started at US$1,565 (equivalent to $4,080 in 2015) for a configuration with 16 K RAM, Color Graphics Adapter, and no disk drives. Most 5150s had one or two 5.25-inch floppy disk drives, either single-sided double-density (SSDD) or double-sided double-density (DSDD) [1] .
The XT with 256 K RAM (expandable up to 640 K) and built-in hard drive followed in 1983, the AT with 80286 processor @ 8 MHz in 1984, and PS/2 in 1987, with the follow-on of the IBM PC series until 2000, along with 32-bit x86 compatibles. The term "IBM PC compatible" is not commonly used any more because most current mainstream desktop and laptop computers are based on the PC architecture with x86-64 processor and IBM no longer making PCs [2]
Table of Contents
Project Chess
In July 1980, William C. Lowe assembles the members of "Project Chess", known as the "Dirty Dozen", the twelve engineers chosen to design and build a prototype personal computer, in Boca Raton, Florida. Don Estridge is project manager, Jack Sams heads the software effort [4] .Timeline
386
486
20
25
386
486DX2-4
Pentium
25
66 - 100
60 - 100
Pentium
60-200
Operating Systems
See also
Manuals
Forum Posts
External Links
PC
Compatibles
DOS
Graphics Adapter
Keyboard
References
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