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The IBM Personal Computer (model 5150, commonly known as the IBM PC) is the first microcomputer released in the IBM PC model line and the basis for the IBM PC compatible de facto standard. Released on August 12, 1981, it was created by a team of engineers and designers at International Business Machines (IBM), directed by William C. Lowe and ...
IBM Personal Computer models Type IBM P/N Date announced Date withdrawn Bus No. of slots No. of bays Processor Clock speed (MHz) Stock onboard RAM (KB) Maximum onboard RAM (KB) FDD HDD Notes Ref(s). Personal Computer: 5150-001 August 1981: March 1983: ISA, 8-bit 5 2 Intel 8088: 4.77 16 KB 64 KB none none
The Personal Computer Series, or PC Series, was IBM's follow-up to the Personal System/2 and PS/ValuePoint. Announced in October 1994 and withdrawn in October 2000, it was replaced by the IBM NetVista , apart from the Pentium Pro-based PC360 and PC365, which were replaced by the IBM IntelliStation .
On August 12, 1981, IBM released the IBM Personal Computer. [10] One of the most far-reaching decisions made for IBM PC was to use an open architecture, [11] leading to a large market for third party add-in boards and applications; but finally also to many competitors all creating "IBM-compatible" machines.
When the IBM PC was introduced in 1981, it was originally designated as the IBM 5150, putting it in the "5100" series, though its architecture was unrelated to the IBM 5100's. [4] The 5100 was IBM's second transportable computer. Previously, a truck-based IBM 1401 was configured in 1960 for military use and referred to as a mobile computer. [5]
IBM XT released, similar to the original IBM PC but with a hard drive. It had a 10 MB hard disk, 128 KB of RAM, one floppy drive, mono monitor and a printer, all for $5000. US Compaq Portable released, the first IBM PC compatible machine released with an IBM PC compatible BIOS written from scratch. US MS-DOS 2.0, PC DOS 2.0
The IBM Personal Computer AT (model 5170, abbreviated as IBM AT or PC/AT) was released in 1984 as the fourth model in the IBM Personal Computer line, following the IBM PC/XT and its IBM Portable PC variant. It was designed around the Intel 80286 microprocessor.
The IBM Personal Computer XT (model 5160, often shortened to PC/XT) is the second computer in the IBM Personal Computer line, released on March 8, 1983. [1] Except for the addition of a built-in hard drive and extra expansion slots, it is very similar to the original IBM PC model 5150 from 1981.