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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IBM P/N Date announced Date withdrawn Bus No. of slots No. of bays Processor Clock speed (MHz) Stock onboard RAM (KB) Maximum onboard RAM (KB) FDD HDD Notes Ref(s).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 Diskless model; only means of data storage is through IBM Cassette BASIC
The original IBM PC (Model 5150) motivated the production of clones during the early 1980s. IBM decided in 1980 to market a low-cost single-user computer as quickly as possible. On August 12, 1981, the first IBM PC went on sale. There were three operating systems (OS) available for it. The least expensive and most popular was PC DOS made by ...
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.
Estridge also published the specifications of the IBM PC, allowing a booming third-party aftermarket hardware business to take advantage of the machine's expansion card slots. The competitive cost and expandability options of the first model, the IBM PC model 5150 , as well as IBM's reputation, led to strong sales to both enterprise and home ...
An IBM Personal Computer 330 (6577-9BT) Its last sub-model used the Pentium P54C processor clocked at 100, 133, 166, or 200 MHz. It had, depending on the sub-model, up to 4 ISA and/or 3 PCI expansion slots and four (2 external 5.25", 1 external and 1 internal 3.5") drive bays.
Alternatively, a 5150 can be extended to a 5250, which is a 14-day hold. (Other states have different names for the process of handling people deemed in a mental health crisis.
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]