Glossary

Input device Any of several pieces of hardware equipment used to give information to a system. Examples include the keyboard and the mouse See also output device.

Input window The window that displays a program’s prompt and any commands typed but not yet executed.

Instant ignition. When the user’s computer is turned on and it automatically boots up and is ready for use. Instant Ignition is the result of the computer’s operating system being preloaded at the factory.

Install server. This is a networked computer from which file sets and operating systems can be installed.

Internet protocol address (IP address) A string of characters, in the format nnn.nnn.nnn.nnn, that uniquely identifies a workstation in a network. The nnn in the format specifier above is a one- to three-digit decimal integer between 0 and 255, inclusive, in which leading zeroes are optional. The internet protocol address is also referred to as the “IP address.”

Invisible file name A filename in which the first character is a period (.). Invisible filenames are not displayed by the listing commands such as ls and ll without additional options, such as -a.

IP address See internet protocol address.

ISL See Initial System Loader.

K-L

Kernel The part of the operating system that is an executable piece of code responsible for managing the computer’s resources. The kernel controls the rest of the operating system.

LAN See local area network.

LAN station address See local area network station address.

Link n. A special object that contains the name of another object. When you specify a link as a pathname or part of a pathname, the system substitutes the pathname that the link contains.

Link, v. To establish a relationship between two objects such that one of the objects contains only the

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