COMPUTER TECHNOLOGY Computers Are Your Future Chapter 1.

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Presentation transcript:

COMPUTER TECHNOLOGY Computers Are Your Future Chapter 1

Invention and Progression of Computers 1937First Electronic Digital Computer 1943 Eniac 1951UNIVAC 1—First Commercial Computer

The physical size of this machine is enormous compared to the computers we have today. According to Wikipedia the ENIAC “contained 17,468 vacuum tubes, 7,200 crystal diodes, 1,500 relays, 70,000 resistors, 10,000 capacitors and around 5 million hand-soldered joints. It weighed 30 short tons (27 t), was roughly 8.5 feet by 3 feet by 80 feet (2.6 m by 0.9 m by 26 m), took up 680 square feet (63 m²), and consumed 150 kW of power. Input was possible from an IBM card reader, while an IBM card punch was used for output.”

1958Jack Kilby of Texas Instruments invents integrated circuits

Computers Get Faster and Smaller 1969ARAPNET—Predecessor of the Internet 1975First LAN 1976First Apple Computer 1980Bill Gates creates DOS 1981IBM PC Introduced

Computers Get More User Friendly and More People Use Them 1991World Wide Web (August 6) 1992Windows 3.1 is introduced 1997DVD technology is invented million users subscribe to AOL Internet service 2001Internet Explorer 2003MySpace 2009Internet StatisticsInternet Statistics

Computers for Home and Personal Use Affordable, small units that can be used at home OR at work.

Handheld Devices Palm – Pocket PC Cell Phones Average Price - $200 - $500

Notebooks, Etc. Portable Cost $300 - $2,500

Desktop Also Called  Micro Computer  PC Cost: $250 - $2,500

Computers for Business Used in addition to or in conjunction with PCs, laptops, palms, etc.

Mini Computer Sometimes used as a server for a small – medium sized network. Cost: $10,000 and up

Mainframe Used as a server for medium to large businesses or organizations. Cost: $100,000 and up

Supercomputer Largest, most powerful computers used today  NASA  Large Universities  Government Cost: $ Millions Supercomputer Top 500

Computer A computer is a machine that performs four basic operations: InputProcessingOutputStorage

Computer System A collection of related components that have been designed to work together. HardwareSoftware Computer System