key terms

2. A computer program that can copy itself and infect a computer without permission or knowledge of the user.
4. Unit of memory size
5. High speed internet access that is always on and faster than the traditional dial-up access.
6. small fixes, often including unique identifiers that web servers send to browsers.
9. a form of computer memory that can be read and changed in any order. Stores working data and machine code.
10. electronic holding place for instructions and data a computer needs to reach quickly.
13. worldwide system of computer networks.
15. a private network contained within an enterprise that is used to securely share company information and computing resources among employees.
16. any of a class of electronic devices that convert digital data signals suitable for transmission over analog telecommunications circuits.
17. the external and internal devices and equipment that enables you to perform major functions such as input, output, storage, communication, processing, and more.
18. hardware, firmware, or software that is intentionally included or inserted in a system for a harmful purpose.

1. programs and other operating information used by a computer.
3. malicious software that enters a users computer and gathers data from another device.
5. Software program used to locate and display info on the internet.
6. Component of a computer system that controls the interpretation and execution of instructions
7. any unsolicited communication, sent in bulk.
8. A program that can run independently , can propagate a complete working version of itself onto other hosts on a network.
11. SYSTEMS software that supports a computer's basic functions, such as scheduling tasks, executing applications, and controlling peripherals.
12. to shut down and restart a computer or program.
14. a network security device that monitors and filters in and outcoming network traffic based on an organization.