Chapter 12
Across
- 1. process of eliminating errors from input data
- 6. the physical equipment that is used by a computer to process data
- 9. a list of options available to the software user
- 12. an electronic tool that stores related files together
- 13. data produced by the computer system
- 14. a copy of data or software created at periodic intervals to help protect against data loss
- 15. time a computer cannot be used because of maintenance or mechanical failure
- 18. the act of sending data from one computer or storage device to another
- 19. device required for the input output processing and storage of data
- 20. to code or scramble computer data so that it is unreadable by anyone who does not have decoding key
- 23. a program or piece of software designed and written to fulfill a particular purpose of the user
- 24. the act of uploading or downloading data
- 25. a short name that uniquely identifies an individual to a computer system or software application
- 28. to startup the computer
- 30. the act of entering a username and password to gain access to a software application
Down
- 2. data stored for processing at periodic intervals
- 3. a collection of data stored in one unit identified by a file name
- 4. the act of receiving data from another computer or storage device
- 5. feature of storage devices that allows the data to be seen but not changed
- 7. to enter data into the computer system data entered into the system
- 8. a network security system designed to prevent unauthorized access to or from a private network
- 10. Drive, a device that reads disks using a magnetic or optical read/write head.
- 11. a computer program that allows users to perform a specific tasks
- 16. hardware device that converts digital signals to analog signals for transfer over communication lines or links
- 17. technology that uses radio waves rather than wires or cables for communication between peripherals
- 21. a secret sequence of characters that allows an authorized computer operator access to certain programs or features
- 22. a printed copy of data in a file
- 26. a system of two or more computers linked together for the purpose of sharing information
- 27. use of appropriate hardware and software to allow transmission of electronic messages between users on separate computers
- 29. the combination of a username and password that authorizes an individual to open a software application or access certain features