![]() ![]() Microsoft (known mainly for their programming languages) were commissioned by IBM to write the operating system they bought a program called 86-DOS from Tim Paterson which was loosely based on CP/M-80. MDA (Monochrome Display Adapter), text only, introduced with IBM PC. The design becomes far more successful than IBM had anticipated, and becomes the basis for most of the modern personal computer industry. IBM announced their open architecture IBM Personal Computer. Osborne 1 portable computer introduced the company sold many units before filing for bankruptcy only two years later. Sinclair ZX81 was released, for a similar price to the ZX80 (see 1980). The drum machine Linn LM-1, also released in 1980, was the more expensive alternative to the TR-808. Roland releases the drum machine TR-808 which would end up revolutionizing music of all genres in the 1980s to a more electronic/futuristic sound. This was the beginning of the compact disc it was released in Japan and then in Europe and America a year later. ![]() Red Book on Audio CDs was introduced by Sony and Philips. It is reputed that IBM found over 300 bugs in the code when they subjected the operating system to scrutiny and re-wrote much of the code. The rights were actually bought in July 1981. As Microsoft did not have an operating system to sell, they bought Seattle Computer Product's 86-DOS which had been written by Tim Paterson earlier that year (86-DOS was also known as QDOS, Quick & Dirty Operating System it was a more-or-less 16 bit version of CP/M). DR's operating system, CP/M-86, was later shipped, but it was actually easier to adapt programs to DOS rather than to CP/M-86, and CP/M-86 cost $495. ![]() Microsoft (known mainly for their programming languages) were commissioned to write the operating system for the PC Digital Research failed to get the contract (there is much legend as to the real reason for this ). It was the first Tandy computer to support color graphics, and also supported cartridge programs and games, attempting to bridge both the home computing and video gaming markets.ĭevelopment of MS-DOS/ PC DOS began. Tandy released the TRS-80 Color Computer, based on the Motorola 6809E processor and using Microsoft BASIC as its programming language. The VIC-20 became the first computer to sell 1 million units. Also available were a number of games, a color plotter which printed on 6 in (152 mm) wide paper tape, and a graphics tablet (the KoalaPad). A 5¼" disk drive was available, along with a cassette storage system which used standard audio cassette tapes. Magazines became available which contained the code for various utilities and games. Sinclair ZX80 was released for under £100.Ĭommodore released the VIC-20, which had 3.5 KB of usable memory and was based on the MOS Technology 6502 processor. ![]()
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