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Hardware Basics 0508

Chapter 2 Learning with Technology

Equitable Access Robust and reliable access to all current and emerging technology for all students, staff, and teachers.
Computer System Refers to the computer and other support devices (peripheral devices)
3 CPU Units Arithmetic Logic Unit, Memory Unit, Control Unit
Memory Types in a computer RAM: Temporary Memory available only while the computer is turned on. ROM: Permanent Internal Memory
Binary Coding System Code made up of 0's and 1's. Bit= 1 unit Byte= 8 Bits Kilobyte= 1,024 Bytes Megabyte= 1024 Kb (a million keystrokes) GigaByte= 1024 Mb (a Billion Keystrokes) Terabyte =1024 Gb (a trillion Keystrokes)
Peripheral Device external devices used for input or output or storage.
Resolution Clarity of the image on a screen measured in pixels on monitors or DPI on paper.
Pixel A single colored square on a screen.
DPI (Dots per Inch) the number of dots per inch of paper being printed. the higher the number of dots, the clearer the image
Internal Storage Hard Disk Drive. Referred to as the "C" Drive in PCs and the "HD" drive in Macs
External Data Drives CD, CD-R, CD-RW, External HD, USB Drive
Port an opening on a computer through which a connection is made
Parallel Port Developed by IBM and used to connect computers to printers
USB Ports Universal Serial Bus Port. 1.0 2.0 3.0
Ethernet Port/Firewire Ports Different ports used for connecting to the internet. Firewire is the newest.
System Software Software that tells the computer what to do. ie. Windows, Mac OS
Application Software allows the computer to carry out specific functions such as word processing.
Created by: Hardywc