User's Manual

Glossary 243
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DELL CONFI DENTI AL – PRELI MI NARY 1/29/03 – FOR PROOF ONLY
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.
K H Z — 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
M B — megabit — A measurement of memory chip capacity that equals 1024 Kb.
M BPS — megabits per second — One million bits per second. This measurement
is typically used for transmission speeds for networks and modems.
MB — megabyte — A measurement of data storage that equals 1,048,576 bytes.
1 MB equals 1024 KB. W hen used to refer to hard drive storage, the term is often
rounded to 1,000,000 bytes.
MB/
SEC — megabytes per second — One million bytes per second. This
measurement is typically used for data transfer ratings.
MEM ORY — A temporary data storage area inside your computer. Because the data
in memory is not permanent, it is recommended that you frequently save your files
while you are working on them, and always save your files before you shut down the
computer. Your computer can contain several different forms of memory, such as
RAM, ROM, and video memory. Frequently, the word memory is used as a synonym
for RAM.
MEM ORY ADDRESS — A specific location where data is temporarily stored in
RAM.