202
Glossary
IrDA
— Infrared Data Association — The organization that creates international
standards for infrared communications.
IRQ
— interrupt request — An electronic pathway assigned to a specific device so
that the device can communicate with the processor. 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.
key combination
— A command requiring you to press multiple keys at the same
time.
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 processor.
LPT
— line print terminal — The designation for a parallel connection to a printer or
other parallel device.
Summary of Contents for Inspiron 1721
Page 1: ...w w w d e l l c o m s u p p o r t d e l l c o m Dell Inspiron 1721 Owner s Manual Model PP22X ...
Page 20: ...20 About Your Computer Front View 4 5 13 3 6 12 11 9 8 7 14 2 1 10 ...
Page 52: ...52 Using a Battery ...
Page 76: ...76 Using Multimedia ...
Page 80: ...80 Using ExpressCards ...
Page 96: ...96 Securing Your Computer ...
Page 166: ...166 Dell QuickSet Features ...
Page 176: ...176 Getting Help ...
Page 194: ...194 Appendix ...
Page 212: ...212 Glossary ...
Page 220: ...220 Index ...