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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 PC compatible" becomes "Standard PC" in 1990s, and later "ACPI PC" in 2000s. An IBM-brand PC became the exception rather than the rule. An IBM-brand PC became the exception rather than the rule. Instead of placing importance on compatibility with the IBM PC, vendors began to emphasize compatibility with Windows .
One of the first computers to achieve 100% PC compatibility was the Compaq Portable, released in November 1982; [20] it remained the most compatible clone into 1984. [21] Before the PC dominated the market, however, most systems were not clones of the IBM PC design, but had different internal designs, and ran Digital Research's CP/M.
LEO I 'Lyons Electronic Office' [1] was the commercial development of EDSAC computing platform, supported by British firm J. Lyons and Co. 1953 DYSEAC - an early machine capable of distributing computing; 1955 General Motors Operating System made for IBM 701 [2] MIT's Tape Director operating system made for UNIVAC 1103 [3] [4] 1956
The history of the personal computer as a mass-market consumer electronic device began with the microcomputer revolution of the 1970s. A personal computer is one intended for interactive individual use, as opposed to a mainframe computer where the end user's requests are filtered through operating staff, or a time-sharing system in which one large processor is shared by many individuals.
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
When the PC-9801 launched in 1982, it was initially priced at 298,000 yen (about US$1,200 in 1982 dollars). It can use PC-88 peripherals such as displays and floppy disk drives, and it can run software developed for N88-BASIC with a few modifications. For new buyers, it required either an expensive 1232 KB 8-inch floppy drive or a smaller ...
By 1982, an estimated 621,000 home computers were in American households, at an average sales price of US$530 (equivalent to $1,673 in 2023). [19] After the success of the Radio Shack TRS-80 , the Commodore PET , and the original Apple II in 1977, almost every manufacturer of consumer electronics rushed to introduce a home computer.