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