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title: IBM PC

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[ IBM PC 5150 [1] IBM PC, (IBM Personal Computer, PC)

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) [2] . 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 [3]

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

| Model | Year | Processor | MHz | RAM | | --- | --- | --- | --- | --- | | IBM PC 5150 | 1981 | 8088 | 4.77 | 16 KiB - 256 KiB | | IBM PC XT | 1983 | 8088 | 4.77 | 128 KiB - 640 KiB | | IBM PC AT | 1984 | 80286 | 6-8 | 256 KiB ~ 16 MiB | | IBM PS/2 | 1987 | 80286386486 | 162025 | 512 KiB - 4 MiB | | IBM PS/ValuePoint | 1992 | 8086386486DX2-4Pentium | 82566 - 10060 - 100 | 640 KiB - 64 MiB | | IBM PC 300 | 1994 | 486Pentium | 20-10060-200 | 640 KiB - 192 MiB | | IBM PC 360 | 1995 | Pentium Pro | 200 | 640 KiB - 128 MiB | | IBM PC 365 | 1996 | Pentium Pro | 200 | 640 KiB - 512 MiB |

Operating Systems

See also

Manuals

Forum Posts

External Links

PC

Compatibles

DOS

Graphics Adapter

Keyboard

References

  1. ↑ IBM Personal Computer model 5150 with IBM 5151 monochrome monitor and IBM PC keyboard, Image by Ruben de Rijcke, February 24, 2010, CC BY-SA 3.0, Wikimedia Commons, IBM Personal Computer from Wikipedia
  2. IBM Personal Computer from Wikipedia
  3. IBM Personal Computer from Wikipedia
  4. Chronology of IBM Personal Computers

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