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History of Computers Konrad Kruse John Atanasoff & Clifford Berry invented the ABC Computer John Presper Eckert & John W. Mauchly invented the ENIAC 1 Computer John Bardeen, Walter Brattain & Wiliam Shockley invented the Transistor Frederic Williams & Tom Kilburn invented the Williams Tube Baby computer John Presper Eckert & John W. Mauchly invented the UNIVAC 1 Computer (UNIVersal Automatic Computer) International Business Machines (IBM) invents the 701 EDPM Computer John Backus & IBM invented the FORTRAN Computer Programming Language Stanford Research Institute, Bank of America, and General Electric invented the ERMA and MICR Jack Kilby & Robert Noyce invented The Integrated Circuit Otherwise known as 'The Chip' Steve Russell & MIT invented the Spacewar Computer Game Douglas Engelbart invented the first ever Computer Mouse The ARPAnet was invented The Intel 1103 Computer Memory was invented Faggin, Hoff & Mazor invented the Intel 4004 Computer Microprocessor Alan Shugart & IBM invented the "Floppy" Disk Robert Metcalfe & Xerox invented the Ethernet Computer Scelbi & Mark-8 Altair & IBM invented the 5100 Computer Apple I, II & TRS-80 & Commodore Pet Computers Dan Bricklin & Bob Frankston invented the VisiCalc Spreadsheet Software Seymour Rubenstein & Rob Barnaby invented the WordStar Software IBM invented the IBM PC a home computer Microsoft invented the MS-DOS (Microsoft Disk Operating System) Apple invented the Apple Lisa Computer Apple invented the Apple Macintosh Computer Microsoft begins the friendly war with Apple.