Definitions

3. a person who uses computers to gain unauthorized access to data.
5. The Domain Name System
6. a part of a computer system or network that is designed to block unauthorized access while permitting outward communication.
10. a defined structure for the processing, storage, or display of data.
11. is used in a number of image file formats.
12. a system for connecting a number of computer systems to form a local area network, with protocols to control the passing of information and to avoid simultaneous transmission by two or more systems.

1. a general-purpose computer programming language designed to produce programs that will run on any computer system.
2. a system of words, letters, figures, or other symbols substituted for other words, letters, etc., especially for the purposes of secrecy.
4. The arrow that clicks on stuff inside the computer
7. the most effective way to achieve data security
8. a web page set as the default or start-up page on a browser.
9. a unit of information equal to one billion (109) or, strictly, 230 bits.