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Computer Hardware

Computer Hardware. Introduction. Computer System Components. Input Keyboard, Mouse, Camera, Touch Pad Processing CPU Output Monitor, Printer Storage Floppy, Hard Drive, CD, DVD, Flash Drive. Generations . The Binary System. Bits – Binary digits, or 0,1.

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Computer Hardware

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  1. Computer Hardware Introduction

  2. Computer System Components • Input • Keyboard, Mouse, Camera, Touch Pad • Processing • CPU • Output • Monitor, Printer • Storage • Floppy, Hard Drive, CD, DVD, Flash Drive

  3. Generations

  4. The Binary System Bits– Binary digits, or 0,1. Bytes (8 bits) – ASCII, EBCDIC One byte is the space needed to store one character, like the letter “A”. Kilobyte (KB) – 1000 (actually, 1024) Megabyte (MB) – 1,000,000 Gigabyte (GB) – 1,000,000,000 Terabyte (TB) – 1,000,000,000,000

  5. Connecting Input Devices • Analog to Digital Conversion • Ports (gateways to the computer) – serial and parallel, USB. • Use of interrupts to alert CPU

  6. Processing – CPU components Control Unit Clock cycle regulates all operations Arithmetic-Logic Unit (ALU) Add Gates – Half adder, full adder AND/OR/NOT gates Memory RAM – Static (faster, less compact) Dynamic ROM

  7. Output Conversion from Digital back to Analog Video Printers - Ink Jet, Laser Sound Controlling Devices (e.g. antilock brakes)

  8. Storage • Hard Drive • 160 GB on upwards today • As low as 256 KB less than 20 years ago! • CD-ROM • 600-700 MB • DVD-ROM • 4 GB - Red Laser, 27 GB- Blue Laser • Flash Drives • From 256 MB up to 100+ GB

  9. Related Fields of Study • Computer Science • Software development • Computer Engineering • Hardware design and development • Computer Information Systems • Management of technology in organizations.

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