Dell OptiPlex GX240 User Manual

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Kilobit(s). A measurement of data that equals 1024 bits. A measurement of
the capacity of memory integrated circuits. See also

Kilobyte(s). A measurement of data that equals 1,024

bytes

. 1024 KB equals

Kilogram(s). A measurement of mass that equals 1,000 grams.

kHz

Kilohertz. A measurement of frequency that equals 1,000

L1 Cache

Level 1 cache. A small, very fast primary

cache

that is stored inside the

microprocessor

. It is faster than the

L2 cache

L2 Cache

Level 2. A larger, slower secondary

cache

used with the

L1 cache

. In older

microprocessors

, the L2 cache was usually external to the processor, contained

chip(s)

or an

expansion card

. On more recent processors the L2 cache is

typically integrated into the processor.

Pound(s). A measurement of weight that equals 16

or 0.453592

LBA

Logical block addressing. A defining feature of

EIDE

that allows a computer

to address a hard drive larger than 528

, up to 8.4

in data storage

capacity. A logical block address is a 28-

bit

value that maps to a specific

cylinder-head-sector address on the drive.

LED

Light-emitting diode. An electronic component that lights up when a current
is passed through it.

LIF

Low insertion force. A type of socket or connector that allows a computer

chip

to be installed or removed with minimal stress applied to either the chip or
its socket. See

ZIF