history of computers.

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In 1981, IBM introduced its personal computer (PC) for use in the home, office and schools. The 1980's saw an expansion in computer use in all three arenas as clones of the IBM PC made the personal computer even more affordable. The number of personal computers in use more than doubled from 2 million in 1981 to 5.5 million in 1982. Ten years later, 65 million PCs were being used. Computers continued their trend toward a smaller size, working their way down from desktop to laptop computers (which could fit inside a briefcase) to palmtop (able to fit inside a breast pocket). In direct competition with IBM's PC was Apple's Macintosh line, introduced in 1984. Notable for its user-friendly design, the Macintosh offered an operating system that allowed users to move screen icons instead of typing instructions. Users controlled the screen cursor using a mouse, a device that mimicked the movement of one's hand on the computer screen.

In 1980, IBM first approached Bill Gates and Microsoft, to discuss the state of home computers and Microsoft products. Gates gave IBM a few ideas on what would make a great home computer, among them to have Basic written into the ROM chip. Microsoft had already produced several versions of Basic for different computer system beginning with the Altair, so Gates was more than happy to write a version for IBM.

As for an operating system (OS) for the new computers, since Microsoft had never written an operating system before, Gates had suggested that IBM investigate an OS called CP/M (Control Program for Microcomputers), written by Gary Kildall of Digital Research. Kindall had his Ph.D. in computers and had written the most successful operating system of the time, selling over 600,000 copies of CP/M, his OS set the standard at that time.

IBM tried to contact Kildall for a meeting, executives met with Mrs. Kildall who refused to sign a non-disclosure agreement. IBM soon returned to Bill Gates and gave Microsoft the contract to write the new operating system, one that would eventually wipe Kildall's CP/M out of common use.

The "Microsoft Disk Operating System" or MS-DOS was based on QDOS, the "Quick and Dirty Operating System" written by Tim Paterson of Seattle Computer Products, for their prototype Intel 8086 based computer.

QDOS was based on Gary Kildall's CP/M, Paterson had bought a CP/M manual and used it as the basis to write his operating system in six weeks, QDOS was different enough from CP/M to be considered legal.

Microsoft bought the rights to QDOS for $50,000, keeping the IBM deal a secret from Seattle Computer Products.

Gates then talked IBM into letting Microsoft retain the rights, to market MS DOS separate from the IBM PC project, Gates proceeded to make a fortune from the licensing of MS-DOS.

In 1981, Tim Paterson quit Seattle Computer Products and found employment at Microsoft.

On November 10, 1983, at the Plaza Hotel in New York City, Microsoft Corporation formally announced Microsoft Windows, a next-generation operating system that would provide a graphical user interface (GUI) and multitasking environment for IBM computers. Microsoft promised that the new program would be on the shelf by April 1984. It might have been released under the original name of Interface Manager if Microsoft's marketing whiz, Rowland Hanson, had not convinced Microsoft founder Bill Gates that Windows was the better name.

That same November, Bill Gates showed a beta version of Windows to IBM's head honchos. Their response was lackluster, perhaps because IBM was also working on its own product called Top View. They did not give Microsoft the same encouragement for Windows that they gave MS-DOS in 1981, the first highly successful operating system that Microsoft wrote for the IBM-PC.

Top View was released in February 1985, as a DOS-based multitasking program manager without any GUI features. IBM promised that future versions of Top View would have a GUI. The promise was never kept, and the program was discontinued barely two years later.

No doubt, Bill Gates realized how profitable a successful GUI for IBM computers would be. He had seen Apple's Lisa computer and later the more successful Macintosh computer. Both Apple computers came with a stunning graphical user interface.

Side Note: Early MS-DOS diehards liked to refer to MacOS as 'WIMP' - the Windows, Icons, Mice and Pointers interface.

Microsoft Windows faced potential competition from IBM's own Top View, and there were others. VisiCorp's short-lived VisiOn, released in October 1983, was the official first PC-based GUI. The second was GEM (Graphics Environment Manager), released by Digital Research in early 1985. Both GEM and VisiOn lacked support from the all-important third-party developers--and, if nobody wanted to write software programs for an operating system, nobody would want to buy it.

Microsoft finally shipped Windows 1.0 on November 20, 1985, almost two years past the initially promised release date.

 

Year Event
1980 IBM hires Paul Allen and Bill Gates to create an operating system for a new PC. The pair buy the rights to a simple operating system manufactured by Seattle Computer Products and use it as a template. IBM allows the two to keep the marketing rights to the operating system, called DOS.
1980 IBM hires Microsoft to develop versions of BASIC, FORTRAN, COBOL and Pascal for the PC being developed by IBM.
1980 Microsoft licenses Unix and starts to develop a PC version, XENIX.
1980 The programming language FORTRAN 77 is created.
1980 The first Color computer is introduced.
1980 is founded.
1981 MS-DOS 1.0 was released August, 1981.
1981 American National Standards Institute more commonly known as ANSI was founded.
1981 IBM joins the computer race with its IBM PC, which runs the new DOS operating system.
1981 Xerox introduces the graphical Star workstation. This computer greatly influences the development of Apple’s future computer models, Lisa and Macintosh, as well as Microsoft’s Windows.
1981 Hayes Introduces the Smartmodem 300 with its standard setting AT command set and a operating speed of 300 bits per second.
1981 Adam Osborne introduces the Osborne I, the first successful portable computer, which weighs 25 pounds.
1981 Hewlett-Packard Superchip the first 32-bit chip is introduced.
1981 Commodore ships the VIC-20, which later becomes the world’s most popular computer costing only $299.95.
1981 Logitech is founded in Apples, Switzerland.
1981 Adaptec is founded.
1981 Hayes releases the Smartmodem 1200 with transfer rates of 1,200 bits per second.
1981 CTX is established.
1982 Peter Norton creates Norton Utilities.
1982 Sony releases its first Trinitron monitor
1982 Microsoft releases FORTRAN for the PC COBOL for MS-DOS, and Multiplan for the Apple II and CP / M machines.
1982 Microsoft establishes a subsidiary in England to begin foreign sales efforts.
1982 WordPerfect Corporation introduces WordPerfect 1.0 a word processing program that will become one of the computer markets most popular word processing program.
1982 The first luggable computer is introduced.
1982 Sun is incorporated in February 1982, with four employees.
1982 Lotus Development Corporation is founded and Lotus 1-2-3, a spreadsheet program is introduced.
1982 Compaq Computer Corp. is founded by Rod Canion and other Texas Instruments Incorporated engineers. Compaq is the first company to introduce a clone of the IBM PC and become IBM’s biggest challenger in the corporate market.
1982 The Commodore 64 begins to be sold with 64 kilobytes (KB) of random-access memory (RAM) and containing Microsoft BASIC and dropping in price from $600 to $200 allows it to become the best-selling computer of all time.
1982 The HX-20 becomes the first notebook-sized portable computer is introduced by Epson.
1982 MS-DOS version 1.25 is released.
1982 Apple Computer is the first personal computer manufacture to hit the $1 billion mark for annual sales.
1982 The Intel 80286 processor is announced.
1982 Adobe is founded.
1982 BTC is founded
1983 The IBM XT is first introduced.
1983 The Time magazine nominates the PC as the "man of the year."
1983 The Apple IIe is introduced. The computer contains 64 kilobytes (KB) of RAM one megahertz 6502 processor and running Applesoft BASIC and sells for $1,400.
1983 Tandy, Epson and NEC all sell notebook computers however only the Tandy’s model 100 becomes popular because of its low price of $499.
1983 More then 10 million computers are in use in the United States.
1983 MS-DOS 2.0 was released March, 1983.
1983 True BASIC is created and is a compiled, structured language. It doesn't require line numbers, as the original BASIC did, and includes the advanced control structures necessary for structured programming.
1983 The QIC Standard becomes the first standard in the computer history for tape drives. 
1983 Microsoft Windows was announced November, 1983
1984 Bill Gates is featured on the cover of Time magazine.
1984 The 3.5-inch floppy diskette is introduced and later becomes an industry standard.
1984 Dell Computer is founded May 3, 1984 in Austin Texas.
1984 The now famous Apple commercial is shown during the Super Bowl, the commercial introduces the Apple Macintosh, a computer with graphical user interface instead of needing to type in commands. In six months sales of the computer reach 100,000.
1984 Dhrystone is developed.
1984 IBM develops EGA.
1984 The computer Museum opens in downtown Boston.
1984 Microsoft introduces MS-DOS 3.0 for the IBM PC AT and MS-DOS 3.1 for networks.
1984 The Tandy 1000 personal computer is introduced and becomes the best-selling IBM-compatible computer of the year.
1984 IBM introduces the Enhanced Graphics Adapter (EGA) video card with higher resolution, more colors, and a quicker response then previous video cards.
1984 University of Southern California professor Fred Cohen creates alarm when he warns the public about computer viruses.
1984 The begining of the greatest adventure computer gaming series is released by Sierra. Kings Quest 1: Quest for the crown is released to the public.
1984 The Yellow book of CD-ROM standards is written.
1984 Cirrus is established.
1984 ISA is expanded to 16-bit capability.
1985 The GNU manifesto is published by Dr. Dobb's Journal
1985 Microsoft and IBM begin collaboration on the next-generation operating system (OS/2).
1985 The computer company Gateway 2000 is founded in Siox City, Iowa.
1985 Intel introduces the 80386, a 16 MHz processor that incorporates 275,000 transistor and capable of accessing up to four gigabytes of memory. The processor sells for $299.
1985 Aldus Corporation introduces PageMaker for the Macintosh, a program that lets users mix type and graphics on the same page. The combination of this software and the new Apple LaserWriter laser printer begin the era of desktop publishing.
1985 The Mach Project begins at the Carnegie Mellon University.
1985 IBM develops NetBEUI.
1985 Microsoft Windows 1.0 is shipped and allows users to navigate the PC computers through a graphical user interface making the computer much easier to use. The software begins selling for $100.00
1985 The Nintendo Entertainment System makes its debut.
1985 ATI is founded.
1985 Boca is established.
1985 Corel is founded.
1986 Apple introduces the Mac Plus. The computer contained one megabyte of RAM, new keyboard that contained cursors and numeric keypad and sold for $2,600.
1986 Compaq introduces the first 386-based PC compatible computer.
1986 Microsoft is listed on the New York Stock Exchange selling shares to the public at $21 each, making Bill Gates one of the world’s youngest billionaires.
1986 More than 30 million computers are in use in the United States.
1986 MS-DOS 3.2 was released April, 1986.
1986 IMAP is developed by Stanford University.
1986 CD-i format is specified.
1986 Aztech is established.
1987 Microsoft purchases Forethought Incorporated. The company that developed the presentation software PowerPoint.
1987 Microsoft introduces Windows 2.0 and Microsoft Works.
1987 Microsoft and IBM release OS/2 1.0
1987 The Mac SE is introduced at $2,900
1987 IBM introduces the PS / 2 personal computer, which has improved graphics, a 3.5-inch diskette drive, and proprietary bus to help prevent clone makers competition.
1987 IBM sends clone manufactures letters demanding retroactive licensing fees.
1987 IBM develops 8514/A.
1987 MS-DOS 3.3 was released April, 1987.
1987 IBM introduces MCA.
1987 Microsoft Shares hits $100 per share.
1987 Apogee is founded, Apogee is well known for its computer games as well as the company who first released a 'Shareware' game.
1987 The SPARC processor is introduced by Sun.
1987 IBM introduces VGA.
1987 Elitegroup Computer Systems is established.
1988 Apple files a copyright infringement against Microsoft for Windows 2.03 and Hewlett Packard for New Wave in comparison with their Macintosh operating system.
1988 About 45 million PCs are in use in the United States.
1988 Creative Labs introduces the SoundBlaster, a sound card for the PC that contains an 11-voice FM synthesizer with text-to-speech, digitized voice input / output, a MIDI port, a joystick port and bundled software.
1988 EISA is developed as an alternative to MCA.
1988 Morphing is first introduced in the movie Willow.
1988 MS-DOS 4.0 was released July, 1988.
1988 MS-DOS 4.01 was released November, 1988.
1989 GriD Systems Corporation introduces the first pen-based computer.
1989 Intel releases the 486DX processor, with more than 1 million transistors and multitasking capabilities.
1989 Tim Berners-Lee develops HTML.
1989 Poqet announces the Poqet PC the first pocket-sized MS-DOS compatible computer.
1989 Asus is founded.

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