Toshiba 8100 series, User Manual

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Part III: Appendixes
Glossary
314
U
universal serial bus (USB): A peripheral expansion standard that
supports a data transfer rate of up to 12 Mbps for peripherals such as
keyboards, pointing devices and monitors. USB peripherals have a
single standard for cabling and connectors. USB allows hot
swapping of peripherals.
upload: To send a file to another computer through a modem. See also
download .
upper memory area (UMA): The area of memory between 640 KB and 1
MB. This area, used mostly for video memory and other system
functions, also contains small blocks of memory (upper memory
blocks) that the computer can use for device drivers and other
memory resident programs.
upper memory block (UMB): Continuous regions of the upper memory
area into which the computer may load programs and device drivers.
utility: A computer program that lets you modify how certain aspects of
your computer function. Utilities differ from applications because
you don’t use them to do real work—they just make your life easier.
Different utilities manage your fonts, compress files and check for
viruses. MaxTime and Hardware Setup are examples of utilities.
V
volatile memory: Random Access Memory (RAM) that stores
information while it is connected to a power source. If the battery
discharges, the information will be lost.
W
warm boot: Restarting the computer without turning it off. See also boot,
restart .
window: A portion of the screen that can display its own application or
document.
wizard: A helpful online tutor that guides you through common
procedures or processes, as in hardware wizard.
write protection: A safeguard that physically prevents you from deleting
the information on a disk or other storage media. 3.5 inch diskettes
have a small square hole with a plastic tab. To protect information
on the diskette, slide this tab to uncover the hole.
Z
zoom: A feature in many applications that makes an object on the screen
smaller or larger.