User's Manual

integrated — Usually refers to components that are physically located on the computer's system board. Also
referred to as built-in.
I/O — input/output — An operation or device that enters and extracts data from your computer. Keyboards
and printers are I/O devices.
I/O address — An address in RAM that is associated with a specific device (such as a serial connector,
parallel connector, or expansion slot) and allows the microprocessor to communicate with that device.
IRQ — interrupt request — An electronic pathway assigned to a specific device so that the device can
communicate with the microprocessor. Each device connection must be assigned an IRQ. Although two
devices can share the same IRQ assignment, you cannot operate both devices simultaneously.
ISP — Internet service provider — A company that allows you to access its host server to connect directly to
the Internet, send and receive e-mail, and access websites. The ISP typically provides you with a software
package, user name, and access phone numbers for a fee.
K
Kb — kilobit — A unit of data that equals 1024 bits. A measurement of the capacity of memory integrated
circuits.
KB — kilobyte — A unit of data that equals 1024 bytes but is often referred to as 1000 bytes.
keyboard shortcut — A command requiring you to press multiple keys at the same time. Also referred to as
a key combination.
kHz — kilohertz — A measurement of frequency that equals 1000 Hz.
L
LAN — local area network — A computer network covering a small area. A LAN usually is confined to a
building or a few nearby buildings. A LAN can be connected to another LAN over any distance through
telephone lines and radio waves to form a wide area network (WAN).
LCD — liquid crystal display — The technology used by portable computer and flat-panel displays.
LED — light-emitting diode — An electronic component that emits light to indicate the status of the computer.
local bus — A data bus that provides a fast throughput for devices to the microprocessor.
LPT — line print terminal — The designation for a parallel connection to a printer or other parallel device.
M
Mb — megabit — A measurement of memory chip capacity that equals 1024 Kb.
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