COMPUTER RELATED TERMS

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Across
  1. 2. a small handheld device that is dragged across a flat surface to move the cursor on a computer screen, typically having buttons that are pressed to control functions.
  2. 5. a pair of earphones joined by a band placed over the head, for listening to audio signals such as music or speech
  3. 6. a lever that can be moved in several directions to control the movement of an image on a computer or similar display screen
  4. 7. a flexible removable magnetic disk, typically encased in hard plastic, used for storing data
  5. 11. determine (the amount or number of something) mathematically.
  6. 13. a collection of items of the same type stored in a hidden or inaccessible place
  7. 14. an instrument for converting sound waves into electrical energy variations which may then be amplified, transmitted, or recorded.
  8. 16. a rigid nonremovable magnetic disk with a large data storage capacity
  9. 17. an integrated circuit that contains all the functions of a central processing unit of a computer.
  10. 20. a panel of keys that operate a computer or typewriter
  11. 22. a printed circuit board containing the principal components of a computer or other device, with connectors into which other circuit boards can be slotted.
  12. 26. global computer network providing a variety of information and communication facilities, consisting of interconnected networks using standardized communication protocols
  13. 28. a machine for printing text or pictures onto paper, especially one linked to a computer.
Down
  1. 1. an electronic device for storing and processing data, typically in binary form, according to instructions given to it in a variable program.
  2. 3. A device that converts analog audio signals into the equivalent air vibrations in order to make audible sound.
  3. 4. inconstant.
  4. 8. stands for "light emitting diode."
  5. 9. used as a read-only optical memory device for a computer system
  6. 10. facts and statistics collected together for reference or analysis.
  7. 12. make a calculation, especially using a computer.
  8. 13. a device for recording visual images in the form of photographs, film, or video signals.
  9. 15. a compact disc used as a read-only optical memory device for a computer system
  10. 16. a high-capacity, self-contained storage device containing a read-write mechanism plus one or more hard disks, inside a sealed unit.
  11. 18. what is put in, taken in, or operated on by any process or system.
  12. 19. a unit of information equal to one million million (1012) or, strictly, 240 bytes
  13. 21. smallest unit of data in a computer.
  14. 23. device that displays information in pictorial form
  15. 24. expressed in a system of numerical notation that has 2 rather than 10 as a base.
  16. 25. an optical disc format designed to display high definition video and store large amounts of data.
  17. 27. UNIT the part of a computer that houses the primary devices that perform operations and produce results for complex calculations