Across
- 6. the part of a computer that houses the primary devices that perform operations and produce results for complex calculations
- 7. the programs and other operating information used by a computer
- 9. a computer network that links devices within a building or group of adjacent buildings
- 12. computer hardware which is used to enter data for processing
- 14. the retention of retrievable data on a computer or other electronic system; memory
- 15. a small portable computer that accepts input directly on to its screen rather than via a keyboard or mouse
- 20. a particularly powerful mainframe computer
- 21. a group of letters occurring after a period in a file name, indicating the format of the file
- 23. operate on computer data by means of a program
- 25. a visual way of interacting with a computer using items such as windows, icons, and menus, used by most modern operating systems
- 27. the quantities, characters, or symbols on which operations are performed by a computer, being stored and transmitted in the form of electrical signals and recorded on magnetic, optical, or mechanical recording media
- 28. a printed circuit board containing the principal components of a computer or other device, with connectors into which other circuit boards can be slotted
- 29. a method employing encryption to provide secure access to a remote computer over the internet
- 31. describes seven layers that computer systems use to communicate over a network
- 32. a computer or computer program which manages access to a centralized resource or service in a network
Down
- 1. an established set of rules that determine how data is transmitted between different devices in the same network
- 2. a text-based user interface (UI) used to run programs, manage computer files and interact with the computer
- 3. any external device that provides input and output for the computer
- 4. high-performance computers with large amounts of memory and processors that process billions of simple calculations and transactions in real time
- 5. the machines, wiring, and other physical components of a computer
- 8. a small computer that contains a microprocessor as its central processor
- 10. a circuit board that can be inserted in a computer to give extra facilities or memory
- 11. the part of a computer in which operations are controlled and executed
- 13. designed to absorb and disperse heat away from a high temperature object such as a computer processor
- 16. an electronic device for storing and processing
- 17. allows you to access multiple programs at once with speed and efficiency
- 18. a type of file storage device connected to a computer network
- 19. a person who uses or operates something, especially a computer or other machine
- 22. the software that supports a computer's basic functions, such as scheduling tasks, executing applications, and controlling peripherals
- 24. the physical and logical relationship of nodes in a network
- 26. a high-capacity, self-contained storage device containing a read-write mechanism plus one or more hard disks, inside a sealed unit
- 30. converts one voltage to another more convenient voltage while delivering power