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System diskette
A diskette that contains the operating system.
Tracks
Addressable, concentric circles on a disk, resembling the grooves
on a record, which help to divide the disk into separate
accessible areas. There are 80 tracks on each side of a double-
sided 1.2MB, 1.44MB, or 720KB diskette and 40 tracks on each
side of a double-sided 360KB diskette. The number of tracks on
a hard disk depends on its capacity.
VGA
Video Graphics Array. A type of high-resolution display
adapter. The VGA adapter built into the system board of
your computer can display 16-color graphics at resolutions up to
1024 x 768 or 256-color graphics at resolutions up to 640 x 480.
Video card
A display adapter card that can be installed in one of the
computer’s option slots to provide a monitor interface. Your
computer comes with a built-in VGA adapter, so you do not
need to install a video card in your system if you are going to use
this interface.
Write
To store data on a disk.
Write-protect
To protect the data on a diskette from being changed by placing
a write-protect tab over the notch on the side of a 5¼-inch
diskette or by setting the write-protect switch on a 3½-inch
diskette. When a diskette is write-protected, you cannot erase,
change, or record over its contents.