Inside the System

1. A computer memory whose contents can be accessed and read but cannot be changed.
4. An electronic device that converts information in memory to video output.
6. Finding and fixing problems in computing sciences.
9. A duplicate copy.
11. A large digital computer serving 100-400 users and occupying a special air-conditioned room.
12. A computer memory which can be used by programs to perform necessary tasks while the computer is on.
13. Written programs or procedures pertaining to the operation of a computer system.
14. The part of a computer that does most of the data processing.
15. A program a personal computer's microprocessor uses to get the computer system started after you turn it on.

2. The main circuit board for a computer.
3. A device consisting of a set of keys on typewriter.
5. The mechanical, magnetic, electronic, and electrical components making up a computer system.
7. The main source of power.
8. A navigational system involving satellites and computers that can determine the latitude and longitude of a receiver on Earth.
10. A portable computer small enough to use in your lap.
13. A pointed tool for writing or drawing or engraving.