Atari 520ST - Page 73

GEM
Graphics
Environment
Manager.
A
program
used with
the
TOS
Operating
System which
creates and manages
all the icons
and graphics
features
of the ST Computer.
GEM Desktop The
main screen
for the ST Computer. It
includes
the Menu Bar, two
Floppy Disk icons,
and the Trash
icon.
Ghost Icon An
outline of an icon
or window used to show
the
current position
of the icon
or window
as
it is
being dragged
to
a
new location on
the GEM Desktop.
Hard
Disk A storage device used to
store data
on
a
magnetic
surface. A
hard disk can store
far more
data
than a
floppy disk
(more than ten
million bytes of data vs. a
typical maximum
of one
million bytes on
a
floppy
disk). The hard disk
drive
can
also read
and write information up to
ten times faster
than the floppy
disk
drive.
High-Resolution One
of three video display
modes accessible to
the ST Computer.
In high-resolution
mode, the ST Computer
display consists of 640 dots
horizontally
and
400 dots
vertically.
In
high-resolution mode, the ST
Computer
will only display black and
white dots. (See
Low-Resolution and
Medium-Resolution.)
I/O Input/Output. The
communication process
that takes
place
between the
ST Computer
and its
peripheral devices (i.e., disk
drives,
printers).
Input is
information
that
is
sent "in” to the
computer; output is
information the
computer sends “out”.
Icon
A picture
used by
the GEM Desktop
to represent various
kinds of
files, programs, and procedures.
Information Line A
line
at
the
top
of a
window telling how much of
the disk’s storage
capacity is filled and with
how many items.
Interface An electronic
connection that allows
communication
between the computer and
its peripheral devices.
Kilobyte 1024 bytes. (See
Bit and Byte.)
LOGO A
powerful programming
language available on the ST
Computer.
Low-Resolution One of three video
display
1
modes accessible to
the ST
Computer. In low-resolution mode, the ST
Computer display
consists of
320 dots
horizontally by 200 dots
vertically. In this
mode, the ST
Computer can display
up
to sixteen
colors
at a
time
from the total palette of 51 2
colors.