V

vacuum tube
oldest device used for memory in electronic computer. Generated a lot of heat and burned out often.
vector
a means of defining an image in terms of geometric shapes. Used by drawing programs
VGA
Video Graphics Adapter - low end video type with 640 x 480 resolution and 256 colors
video camera
records data on tape that can be uploaded to the computer
video recorder (VCR)
records data on tape that can be uploaded to the computer with the right hardware
video display terminal (VDT)
device which displays computer output. From early network terminals.
video display unit (VDU)
any device that displays computer output including on hand-held devices.
virtual
not really there but acts as though it were real
virtual memory
disk space used as part of main memory
virtual machine
method that tricks computer into thinking it is a different kind of machine than it is
virus
a computer program that performs tasks without your permission or consent. May be harmless but annoying or may be highly damaging.
voice input
using human voice to directly enter data or commands
volatile
term for memory which loses data when the power goes off.