Epson Progression U12 - Manual (Page 209)

Tracks
Addressable, concentric circles on a disk, resembling the
grooves on a record, which divide the disk into separate
accessible areas. On a tape cassette, the tracks run parallel to
the edge of the tape. See also Sector.
UNIX
A powerful operating system that supports multitasking and is
especially suited to multi-user environments. UNIX is
compatible with a range of computers, from personal
computers to mainframes. See also Operating system.
VGA
Video Graphics Array. A type of high-resolution display
adapter that provides a variety of video modes. Your
computer’s VGA controller and video daughterboard support
resolutions up to 1024 x 768 (or up to 1280 x 1024 with the
enhanced video daughterboard) on a compatible monitor.
Video card
See Display adapter card.
VirtualCache
The Epson proprietary feature that automatically creates a
“virtual cache” buffer the size of your installed system memory
to speed up data access. See also Cache.
Write
To transfer data to a storage device (such as a disk) or an
output device (such as a monitor or printer). Data written to a
disk is stored for later retrieval; data written to a monitor is not
stored. See also Read.
22 Glossary