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The original IBM Personal Computer, with monitor and keyboard. The IBM Personal Computer, commonly known as the IBM PC, spanned multiple models in its first generation (including the PCjr, the Portable PC, the XT, the AT, the Convertible, and the /370 systems, among others), from 1981 to 1987.
This share of IBM's PC sales remained steady into the next year, the Model 55 SX representing 22 percent of IBM's PC sales in June 1990. [12] For the majority of 1990, it was the best-selling personal computer in the United States. [13] By 1991, it was the best selling x86-based PC globally. [1]
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.
The PS/2 Models 25 and 30 (IBM 8525 and 8530, respectively) were the lowest-end models in the lineup and meant to replace the IBM PC and XT. Model 25s came with either an 8086 CPU running at 8 MHz, 512 KB of RAM, and 720 KB floppy disks, or 80286 CPU.
The Personal System/2 Model 60 is a high-end desktop computer in IBM's Personal System/2 (PS/2) family of personal computers. First released in April 1987, the Model 60 features an Intel 80286 processor running at a clock speed of 10 MHz, the same as its midrange counterpart, the Personal System/2 Model 50 .
An assortment of IBM PS/2s in various form factors; from left to right: a Server 95, a Model 80, a Model 25, and a PS/2 E on top of a Model 56 and a Model 30 286. The Personal System/2 or PS/2 was a line of personal computers developed by International Business Machines Corporation (IBM).
Beige, boring and a bit too complicated — in the 1990s, personal computers had about as much charisma as an underwhelming date. Compaq and IBM dominated the market, churning out homogenous boxy ...
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 ...