Modula-2: A
prognmming
language created by
tile inventor
of
Pascal
monitor.
A display device that receives video
sIgnals
through a direct connection to a
computer's video
pon.
Unlike a
lV
set,
it
cannot
receive
broadcasted television signals. Also called
a video
monllor.
monochrome
monitor.
A monitor that uses only
a single color on
a background;
for
example, white
on
black, amber on black,
or
green on black.
mouse:
An
input device that conttols a pointer
on
the screen
By
moving the mouse
and
pressing its
button, you can
dr.i.w
piaures,
selea
from lists,
and
move things around
the
.screen.
mouse
bunon:
The bullon
on
top
of
the
mouse.
Usually, pressing
the
mouse button initiateS some
aaion
on whate
....
er
is
under
the pointer. Releasing
the button confirms
the
action.
mouse-dclven
program:
A program that can
respond to mouse commands.
MouseText: A special character set built into the
Apple lIe that includes characters like check
marks
and
little apples.
~lS-OOS:
The
open.ting system
for
programs
designed
10
run computers other than Apple
computers,
such
as the
18;\.1
personal computer.
music
synthesizer:
A device thai
sin&Jlatcs
musical insttumenlS, used
for
playing
and
aeating
musical compositiOns.
n~-ork:
A number
of
computers linked together
for the purpose
of
sharing peripllen.1 devices,
programs,
or
information.
154
Glossary
numeric
keypad: A duster
of
number keys
arn.nged
in
a calculalor layout for rapid
enuy
of
numbers
on
the
Apple ne.
'The
keypad generates
the
S<lme
characters
as
numeric keys
on
the top row
of
the Apple keyboard.
on-line:
The condition of any device to which a
computer has immediate access.
open
architecturt::
A type
of
computer design,
like
the
Apple lie's, thai includes
slOtS
on
the
main
logic board. Users
can enhance the computer's
capabilities by plugging interface cards into
these
slots.
operatJng
system:
A program that, among other
things, contrOls
how
information is loaded into
memory, how the computer works with the
information, how information
is stored
on
a disk,
and
how
Ihe computer communicateS with
peripheral devices. ProDOS,
DOS
3.3,
and
Pascal
are
three operating syStems available for the
Apple.
Option
key:
A
control
key
on
Apple II-family
keyboards.
output:
The information that results from
processing.
This includes what you
.see
on
your
screen, printouts,
and
files saved
on
disk.
paralld
Interface
An
interface
that
transmits dal2
bet
....
'eC;n
a computer and a peripheral device
data
eight
bilS
at a time. Compare
serialloterface.
parity
bits:
BilS
used
to
check
for
error.;
during
data
tlansmission. Compare
data
bIlS.
Pascal: A programming language favored in
computer-science
courses because
it
is easy to
read and Stresses a systematic approach to
problem solVing;
it
is
also popular with many
professional programmers.
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