Terminology

No	Word	Definition
1.	Antivirus	A program that protects the computer from virus infections.
2.	Computer security	A branch of computer technology known as information security as applied to computers and networks
3.	Encryption	The conversion of data into a form, called cipher text that cannot be easily understood by unauthorized people.
4.	Firewall	A program or device that blocks unrequested communications from the Internet, preventing the computer from responding to attempts to access.
5.	Protection domain	A collection of access rights to the computer resources.