Difference between revisions of "IBM 5150"

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[[Image:IBM 5150.jpg|thumb|right|200px|The IBM PC]]
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{{Infobox Machine
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| name = IBM 5150/IBM PC
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| manufacturer = [[IBM]]
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| image = IBM 5150.jpg
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| caption = The IBM PC
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| word size = 16 bit
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| year introduced = 1981
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}}
  
 
The IBM 5150 was IBM's entry into the personal computer marketplace, the IBM PC.  The original configuration was for 64kb of ram, and a tape drive, but could be expanded to include a diskette drive, and a hard disk.  Back then, both types of disk drives were of the 5 1/4" full height form factor.  IBM made the PC an open standard, publishing not only schematics, but also including a BIOS listing in the technical reference.  When people wished to build clones of the IBM PC, IBM would license them for a 5% royalty fee, which not only made the PC a popular platform to clone, but also with the available schematics, allowed for everyone to be pin compatible with the ISA slots, creating a thriving hardware expansion business.
 
The IBM 5150 was IBM's entry into the personal computer marketplace, the IBM PC.  The original configuration was for 64kb of ram, and a tape drive, but could be expanded to include a diskette drive, and a hard disk.  Back then, both types of disk drives were of the 5 1/4" full height form factor.  IBM made the PC an open standard, publishing not only schematics, but also including a BIOS listing in the technical reference.  When people wished to build clones of the IBM PC, IBM would license them for a 5% royalty fee, which not only made the PC a popular platform to clone, but also with the available schematics, allowed for everyone to be pin compatible with the ISA slots, creating a thriving hardware expansion business.

Revision as of 17:33, 7 August 2010


IBM 5150/IBM PC
IBM 5150.jpg
The IBM PC
Manufacturer: IBM
Year Introduced: 1981
Word Size: 16 bit


The IBM 5150 was IBM's entry into the personal computer marketplace, the IBM PC. The original configuration was for 64kb of ram, and a tape drive, but could be expanded to include a diskette drive, and a hard disk. Back then, both types of disk drives were of the 5 1/4" full height form factor. IBM made the PC an open standard, publishing not only schematics, but also including a BIOS listing in the technical reference. When people wished to build clones of the IBM PC, IBM would license them for a 5% royalty fee, which not only made the PC a popular platform to clone, but also with the available schematics, allowed for everyone to be pin compatible with the ISA slots, creating a thriving hardware expansion business.

The IBM PC included Microsoft BASIC in ROM, which allowed the PC to function like many of the computers of the time with a simple ROM BASIC. With the addition of a disk drive, OS options included CP/M and MS-DOS at the time of sale.

The IBM PC, also established the 8 bit expansion slot, or ISA bus standard.

IBM PC Motherboard

The PC was replaced by the wildly popular IBM XT.