Computer systems and mobile technologies 1

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  • Computer systems and Mobile technologies
    • Hardware - physical parts of a PC. input, output, storage devices - mouse, printer, USB. communication devices needed to send data across networks.
    • Microprocessor - PC on a single chip. performs all processing needed. in washing machines, toys, heating, alarm, traffic lights, phones, cars, PC, robots, process control.
    • Software - programs run on hardware. operating systems and applications software. Windows, Mac OS, word, database, spreadsheet, presentation etc.
    • PC is used on desk, one place. full size screen and keyboard.
    • Laptops - portable. smaller than PC. lighter, built in screen.
    • Netbooks - smaller, lighter, cheaper than laptops, small hard drive, no cd/dvd drive, longer life.
    • Palmtops - small hand held PC. check emails, surf web, record things.
    • PDAs - Personal Digital Assistant. like a palmtop
    • WAP - wireless application protocol. mobile users access web
    • Smartphones - call, text, take photos, videos, surf web, watch tv, emails, download music + games, GPS.


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