By Newsweek Special Edition On 3/19/16 at 4:00 PM EDT. The first personal computers, introduced in 1975, came as kits: The MITS Altair 8800, followed by the IMSAI 8080, an Altair clone. (Image credit: IBM) 1981 : The first IBM personal computer, code-named "Acorn," is introduced. But even the Kenbak-1 … Personal computers began to have small and minor graphics on them, and a limited color range and the sales also began to rack up. From hobby computers to Apple. His program – called VisiCalc – was designed for the Apple II. The first modern computers were created in the 1950s and have a long theoretical and technical background. Both used the Intel 8080 CPU. IBM had been observing the growing personal computer market for some time. In 1975, Ed Roberts coined the term "personal computer" when he introduced the Altair 8800. The personal computer moved into the world of business when Dan Bricklin created a spreadsheet program. You know, Babbages, the mall-based chain that eventually merged with Software Etc. It went on sale in 1979 and within 4 years it had sold 700,000 copies at $250 a time. The story of the personal computer, including the rise of both Apple and Microsoft, is a fascinating tale. John Blankenbaker's Kenbak-1 computer has been called 'the world's first commercially available personal computer', and a rare 1971 example is now being auctioned. (Yes, cloning has been around that long!) They had already made one dismal attempt to crack the market with their IBM 5100. That was also the year Zilog created the Z-80 processor and MOS Technology produced the 6502.Bill Gates and Paul Allen wrote a BASIC compiler for the Altair and formed Micro-soft. I worked for a company named after the guy back in 1994. The first personal computer. And so to the 1970s. The History, Development, and Importance of Personal ComputersOverviewThe personal computer was introduced in 1975, a development that made the computer accessible to individuals. The ZX Series by a UK Company introduced the ZX Spectrum, which sold 8 million units. American John Blankenbaker created what many experts consider to be the first personal computer---the Kenbak-1. Then Commodore 64, which totaled 17 million units sold. But a much more popular personal computer came into the scene later that year. The Story of Steve Jobs, Xerox and Who Really Invented the Personal Computer. Up to that time computers had been very large and expensive, operated mainly by big companies. Computers small and inexpensive enough to be purchased by individuals for use in their homes first became feasible in the 1970s, when large-scale integration made it possible to construct a sufficiently powerful microprocessor on a single semiconductor chip.A small firm named MITS made the first personal computer, the Altair. The term “personal computer”, or “PC”, has become a staple of our everyday life, but have you ever wondered where exactly that term came from? Some argue that he, not Turing or Zuse, is the true father of the modern computer. The first IBM personal computer, introduced on Aug. 12, 1981, used the MS-DOS operating system. They sold for $750, that's about $5,000 today. At one point, IBM considered buying the fledgling game company Atari to commandeer Atari's early line of personal computers. Although the first personal computer is considered by many to be the KENBAK-1, which was first introduced for $750 in 1971. 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