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

IFS - See Installable File System.

Installable File System (IFS) - A file system for which device drivers can be loaded when required to support devices such as CD-ROM or network drives, or non-default disk formats. Installable file systems may be loaded at system startup, or loaded and unloaded dynamically while the system is running. They typically appear to TCC simply as another drive .

Include List - A method of specifying several files or groups of files in the same directory, for use with all internal commands which take file names as parameters.

Inheritance - A TCC feature which allows one instance of TCC to "inherit" the TCMD.INI file data, aliases, user defined functions, environment variables, command history, and directory history from a previous instance. More generally, a system which allows one program to pass information or settings on to another, often to a second instance of the same program.

Initialization Directive - See Directive.

Initialization File or .INI File - A file which enumerates the initial settings of various command processor options, and which is automatically read by the command processor when it starts. The default initialization file for Take Command is TCMD.INI. For additional details, see Startup Command and Initialization Files.

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

Internal Command - A command which is part of TCC. See also external command..

Internal Variables - Special variables created by TCC to provide information about your system. Internal variables are evaluated each time they are used, and are not actually stored in the environment. Internal variables are accessed using the same syntax as environment variables.

International Standardization Organization (ISO) - An international body promulgating standards.

ISO - See International Standardisation Organization.