~
........
L
L:
L:
L:
L:
L
-
L
L
L
L
L
L
L
1-
kilobyte
(K):
A unit
of
measuremem consisting
of
1024
(210)
bytes.
In
this usage, kilo (from the
Greek,
meaning
one
thousand)
stands
for 1024
Thus, 64K equals 65.536 byleS, Sec also
megabyte.
laser
printer:
A printer that
combines
laser
and
phOiocopier technology
to
produce
printed
documents
of
nC3f-lypesct-quality.
Left
Arro~ A
key
dut., in most programs, moves
lhe
cursor
one
chanClcr
to
the
IcfL
In
some
progn.ms,
pressing
Ldt
Arrow
erases
chanClcrs
to
the
left as
the
cursor moves to
the
kft.
'ettft'
([uality
printer:
Sec
dalsy
wheel
printer.
Unc
feed:
A
chanCier
thu
advances
the
a.lfsor
or,
on
a printer, the print
head
to
the
next line.
LISP: A programming
language
favored
by
people
working in
the
field
of
artificial
intelligence.
load:
The
process
of
movmg a
prOgr.;Jffi
or
dlua
from
a
disk
into
r.lndom-access
memory
(RAM).
Logo: A
computer
language
with excellent
gnphics
capability
thu
encoungcs
learning
through
discovery,
madlinc
bngu.:age: TIle
bonguagc:
of
ones
and
zeros that
is
the
only language the
computer
can
execute,
All
other
languages, like
BASIC,
have
to
be
translated into this binary code
before
the
computer
can
execute
them
main
circuit
board:
See
maIn
logic
boaed
mainframe
computer:
A computer with far
greater
processing
power
and
memory
capacity
than a
personal
computer.
Large
and
expensive,
mainframes maintain transactions for
banking
systems,
insurancc
companics,
chain
stores,
and
information
services.
main
logic
board:
A collection
of
integrated
drcuits
(chips)
connected
on
a
board
lhat holds
RAM, RO
...
t,
lhe
microprocessor,
custom
integrated
circuits,
and
other
components.
Together, these
elements
give
the
computer
its
ability
to
compute.
Sometimes called
the
rna!1l
ctrculJ
board
main
memory:
See
randorn-aca:ss
memory.
m~
storage
device
Another
word
f~
a hard
diSk
drh"C
or
r~
any
device that
can
store
large
amounts
of
Wita.
megabyte
(Mb).
Approximately
one
million
bytes;
more
precisely,
one
megabyte
IS
equal
to
1024 kilobytes.
memory:
Integrated
drcuiu
(chips)
that
store
instructions
and
data
for
the
miaoprocessor
to
operate
on.
There
are
tWO
kinds
of
memory:
temporary
and
permanent
See also
random-
accc'SS
memory
and
read-only
memory.
menu:
A list
of
choices displayed
by
many
programs, from which you
can
select
an
action.
menu
bar:
The horizontal strip at
the
tOP
of
the
screen
lhat
bears
menu
titles in some application
programs.
microprocessor":
The "brain"
of
the
computer.
lbe
Apple
has
a
6SC02
eight-bit microprocessor.
Also
known
as the
CPU
(central processing unit).
mini-circular
connector": A specific type
of
serial
conncctor
that communicatcs data
though
an 8-pin interface,
Comparc
circular
connector.
modem:
Short for modulator/demodulator. A
device lhat links your
computer
to
other
computers
and
information services
over
telephone
lines.
modlflcr
key:
sec
control
key.
Glossary
153
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