A small solid-state device that emits light when a current is applied. A transmission channel that contains a number of optical fibers packaged together. In, Last Out. A modem that operates on lines of up to approximately 6 miles. An image with no grayscale - only black and white.
Text is also a kind of line art.
A storage area containing control information required for managing and scheduling line operations. A synonym for datalink control protocol. An amplifier that increases a signal's strength before the signal is placed on the address or data bus, or transmitted. The ability to program a PBX to accept calls on a certain line. A multibutton telephone can receive ringing signals for incoming calls on specific lines.