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History of the Computer

History of the Computer. David Covarrubias. Terms of Computers. Bit - A bit or binary digit is the basic unit of information in computing and telecommunications. Kilobit - A unit of computer memory or data equal to 1,024 (210) bits.

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History of the Computer

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  1. History of the Computer David Covarrubias

  2. Terms of Computers • Bit - A bit or binary digit is the basic unit of information in computing and telecommunications. • Kilobit - A unit of computer memory or data equal to 1,024 (210) bits. • Megabit - A unit of data size or (when expressed per second) network speed, equal to one million or (strictly) 1,048,576 bits. • Byte - A group of binary digits or bits (usually eight) operated on as a unit. • Kilobyte - A unit of memory or data equal to 1,024 (210) bytes. • Megabyte - A unit of information equal to 220 bytes or, loosely, one million bytes. • Gigabyte - A unit of information equal to one billion (109) or, strictly, 230 bytes. • Terabyte - A unit of information equal to one million million (1012) or strictly, 240 bytes. • Petabyte- a unit of information equal to 1000 terabytes or 10^15 bytes. • Ram - Random Access Memory

  3. First Laptop • Designed to be the ultimate portable computer, the clamshell-style GRiD Compass 1101 is the grand-daddy of all present-day laptop computers. The Compass is very high-tech, with its flat-black, die-cast magnesium-alloy case, and bright, sharp electroluminescent display (ELD). No other system packed so much speed and power in as small a case, and none had such a unique and large, easy-to-read screen, allowing full 80x24 text. Of course, all of these great features raised the price significantly. At $8150, the GRiD Compass 1101 was the most expensive personal computer you could buy.

  4. 5 First Companies • IBM-Thomas J Watson • Hewlett-Packard-BillHewlett and Dave Packard • Toshiba-Hisashige Tanaka • Apple-Steve Wozniak • Dell-Michael Dell

  5. First Computer • “On April 7, 1953 IBM publicly introduced the 701, its first electric computer and first mass produced computer. Later IBM introduced its first personal computer called the "IBM PC" in 1981. The computer was code named and still sometimes referred to as the "Acorn" and had a 8088 processor, 16 KB of memory, which was expandable to 256 and utilizing MS-DOS.”

  6. Important Dates in Computer History • 1937 Alan Turing: Alan Turing develops the concept of a theoretical computing machine. • 1939Hewlett Packard:  William Hewlett and David Packard start Hewlett Packard • 1950Hideo Yamachito: The first electronic computer is created in Japan by Hideo Yamachito. • 1967Floppy Disk: IBM creates the first floppy disk. • 1976Apple: Apple Computers was founded Steve Wozniak and Steve Jobs. • 1977 Apple: Apple Computer’s Apple II, the first personal computer with color graphics, is demonstrated. • 1984Apple Macintosh: Apple introduces the Macintosh with mouse and window interface. • 1991The World Wide Web: The World Wide Web is launched to the public on August 6, 1991. • 1998Google: Google is founded by Sergey Brin and Larry Page on September 7, 1998. • 2002 Approximately 1 billion PCs been sold.

  7. Viruses, Worms, And Trojan Horses Virus - A computer virus attaches itself to a program or file enabling it to spread from one computer to another, leaving infections as it travels. Worm - A worm is similar to a virus by design and is considered to be a sub-class of a virus. Worms spread from computer to computer, but unlike a virus, it has the capability to travel without any human action. A worm takes advantage of file or information transport features on your system, which is what allows it to travel unaided. Trojan Horse - The Trojan Horse, at first glance will appear to be useful software but will actually do damage once installed or run on your computer.  Those on the receiving end of a Trojan Horse are usually tricked into opening them because they appear to be receiving legitimate software or files from a legitimate source. 

  8. Sources • Information from: http://www.computerhope.com/ http://www.webopedia.com/DidYouKnow/Internet/2004/virus.asp http://www.history-timelines.org.uk/events-timelines/07-computer-history-timeline.htm http://oldcomputers.net/grid1101.html http://oldcomputers.net/

  9. Future of Computers • Sooner or later there will no longer be any computers, but just things like tablets and portable computers. Holographic technology will come into play and we will have computer programs out of thin air.

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