Glossary - O        A B C D E F G H I J K L M N O  P Q R S T U V W X

Operating System - A collection of software which provides access to various devices, including file systems and networks, services to other software, and ensures that programs don't interfere with each other while they are running.

Option :

1) A parameter for an internal command or application which specifies a particular behavior or setting. For example, the command "DIR /P" might be referred to as "having the /P option set". Alternate name: switch.

2) A command which allows modifying TCC operating characteristics.

Option file - Alternate name for Initialization File.

OR - A logical combination of two true or false conditions. If both conditions are false the result is false; if either condition is true the result is true. See the table below.

Overstrike Mode - When editing text, a mode in which newly typed characters overwrite existing characters on the line, rather than being inserted into the line at the cursor position. See also Insert Mode.