LCD

Liquid Crystal Display. A form of flat panel display.

LED

Light Emitting Diode. A substance that is illuminated when electricity passes through it. The six indicator lights above the Equity LT-286 keyboard are LEDs.

LIGHTON

An Epson utility program that enables you to restore the screen backlighting by pressing any key, even when a memory-resident program that alters the normal BIOS keyboard handler is running.

Log on

To make a drive or directory the current drive or directory.

Main unit

The part of the computer that houses the central processing unit, the random access memory, the disk drives, and other supporting circuitry.

Megabyte (MB)

A unit used to measure storage space in a computer’s memory or on a disk. One megabyte equals 1,048,576 bytes.

Megahertz (MHz)

A unit used to measure the oscillation frequency of a computer’s internal timing clock. One megahertz is one million cycles per second. The Equity LT-286 operates at 8 or 12 MHz.

Memory

The area where the computer stores data. Memory contents may be permanent (ROM) or temporary (RAM). See also ROM and RAM.

Memory expansion module

An optional component that adds memory to your computer.

10 Glossary