Discovering Computers

1. Web page authoring program that enables Web developers to combine interactive content with text, graphics, audio, and video.
2. Copies itself repeatedly using up system resources and possibly shutting the system down.
5. Uses special electrical components to provide a stable current flow to the computer and other electrical equipment.
6. Uniquely identifies each field.
7. A protocol that defines how two devices use short-range radio waves to transmit data.
8. Measures the performance of hardware or software.
9. Work online with other users connected to a server.
12. Computer that continues to operate when one of its components fail.
13. Uses computers to test product designs.
17. Potentially damaging computer program that affects, or infects a computer negatively by altering the way the computer works without the user's knowledge or permission.
20. Responsible for designing and developing an information system.
21. Materials or substances capable of carrying one or more signals.

1. Defines the maximum number of characters a field can contain.
3. Series of statements that instructs an application how to complete a task.
4. Backup plan in which all data is backed up whenever a change is made.
6. Dozens or hundreds of thin strands of glass or plastic that use light to transmit signals.
10. Creates and maintains the data dictionary, manages security of the database, monitors the performance of the database, and checks backup and recovery procedures.
11. Technique intruders use to make their network or Internet transmission appear legitimate to a victim computer or network.
12. Transforms the contents of a file or data from one format to another.
14. A small program that ells the operating system how to communicate with a specific device.
15. Program that hides within or looks like a legitimate program.
16. Type of always-on connection that is established between two communication devices.
18. The language instructions, or code, to be converted to machine language.
19. Program placed on a computer without the user's knowledge that secretly collects information about the user.
22. Program that displays an online advertisement in a banner or pop-up window on Web pages, email, or other Internet services.