Computer Terms

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Across
  1. 1. Central Processing Unit. Brain of the Computer. Where most calculations take place. Known as central processor or processor.
  2. 4. Machinary and equipment. A computer is both hardware and software. Instructions tell it what to do.(CPU, disks)
  3. 6. Describes how many pixels a monitor can display or how good a printer can print.
  4. 8. megabyte. Represents 1,000,000 bytes
  5. 10. Application that holds specific instructions for hardware functions.
  6. 12. giabyte. Represent 1000 MB
  7. 15. Kilobyte- represents 1000 bytes
  8. 18. T3,T1, Cable/DSL,56,28.8 order of speed
  9. 21. The item that reads and writes data on a herd disk. HDDs for PCs have seek times of 12 milliseconds or less. They improve techniques by caching.
  10. 23. Internal Storage areas in the Computer
Down
  1. 2. Picture Element. little dots make up images on display. divided up into millions of pixels.
  2. 3. Special high-speed storage system. Either reserved or independent storage device.
  3. 5. Main circuit board of microcomputer. Contains connectors for ataching more boards.
  4. 6. Read-only memory. Cannot be written on. Almost all computers have a small amount for computer start up instruction
  5. 7. "OS". Most basic level of communication with computer hardware. Without it, no software programs can run.
  6. 9. (Joint Photographic Experts Group). COmpression techniques for color images. Some detail is lost but it can reduce files size to about 5%.
  7. 11. Compact Disc- can hold digital information
  8. 13. Binary term. unit of storage capable of holding a single character.
  9. 14. Device controls movement of cursor or pointer on display screen.
  10. 16. Universal Serial Bus. Extrenal bus standard that supports data rates of 12 mbps. Single USB port can connect up to 127 peripheral devices. (ex. mice)
  11. 17. Graphics interchange format. Data compression,limited to 256 colors. Better for illustrations than photos.
  12. 19. random access memory. Most common type of memory in computers
  13. 20. typewriter like keys. Can enter dat into a computer. Similar to electric typewriter keyboards but contain more keys.
  14. 22. Reads and writes data onto a disk. Rotates very fast and has multiple heads for reading and writing.