Short for : Standard Input. The input stream fed to a script or program. Normally as a query srting or through the Posting of form data. See also STDIN, STDERR.
Short for : Standard Output. The output stream fed from a script or program. When working with Perl each time you print something you are in fact printing to STDOUT which is a predefined filehandle which represents the browser (client). See also STDIN, STDERR.
Common method of delivering large audio or video files over the Internet. Rather than waiting for the entire file to be downloaded, the file is streammed in real time, allowing you to play the file as it's being downloaded.
A sequence of alphanumeric characters, acted upon as a single piece of data. Often used with Regular Expressions.
Acronym for : Super User. A unix command that assigns full privileges to the user. By typing "su" at the command line, you'll be prompted for a password. When typing in the password it will not appear. If the password is correct, when you submit it (press enter), you'll have access to the entire server and permission to do just about anything.