295kilobyte (KB): A unit of data storage equal to 1024 bytes. Although kilo means 1000, forcomputers it refers to 1024, or 2 raised to the 10th power. See also byte.L laser disc: Reflective-optical videodisc, recorded and read by laser light.legacy device: 1) A peripheral device or card that does not have Plug and Play capabilitybuilt into it. 2) In networking, a device that is designed to work with proprietarycommunication protocols instead of conforming to open standards.light-emitting diode: A semiconductor device that emits light when it receives an electriccurrent. Used for indicators like disk activity lights.liquid crystal display (LCD): A type of display that uses a liquid substance between twotransparent electrode panels. By selectively turning the electrodes on and off,the LCD creates the images you see on the screen.load: To move information from a storage device (such as a CD-ROM) into memory,making it available to the computer for processing.local bus: A type of bus that connects devices directly to the microprocessor. Becausethere are no wires between the CPU and the device, information is passed at amuch greater speed than through the system bus. See also bus.logical drive: A section of a disk that is recognized by the operating system as a separatedisk drive. A system’s logical drives may differ from its physical drives. Forexample, a single hard disk drive may be partitioned into two or more logicaldrives.M macro: A named sequence of instructions within a programming language or application.A macro may be predefined in the language or application, or you may defineyour own macros for procedures you use frequently. The macro name enablesyou to call up the sequence of instructions when you need them.main board: See motherboard.
