A number written using binary notation which only uses zeros and ones. Example: decimal number seven in binary notation is: 111.

Same as your login ID or user ID. The word you type at the "Login:" prompt; your electronic name.

A piece of the spectrum occupied by some form of signal, where it is television, voice, fax data, etc.. Signals require a certain size and location of bandwidth in order to be transmitted. The higher [..]

A systematic approach to storing, updating, securing and retrieving information stored as data items, usually in the form of records in one or more files.

The way you specify where an E-Mail message should be delivered.

Users in need of help can often issue a command such as "?" to access on-line help and tutorial systems.

Media (such as text, graphics, video, audio) that contains hyperlinks.

Joint Photographic Experts Group. The ISO proposed standard for compression of digital data, especially 24-bit color images. It is lossy in that it reduces the file size at the expense of image qualit [..]

A program that is employed in the development, repair or enhancement of other programs. Tools include editors, compilers and linkers. Also refers to utilities, such as formatters and file utilities.

Structured Query Language. ANSI standard data manipulation language used in most relational data base systems. A language for requesting data from a relational database.