|
Term
|
Description
|
|
XGA
|
Extended
Graphics Array. A proprietary video card developed by IBM that
produces a resolution of 1024 X 768 pixels and can display 256
colors. It only works on IBM machines. |
|
XMS
|
Extended
Memory System. In DOS, Extended Memory is that memory above the
initial 1024K. |
|
XT
|
Stands
for Extended Technology. The IBM PC/XT, released around 1983,
was the first IBM PC with a hard drive. |
|
ZIF
|
Zero
Insertion Force. It wasn't always easy to get a CPU into (or out
of) a friction fit socket without bending pins or chipping the
Processor. The ZIF socket has a small lever on the side of it.
When you lift the lever, the CPU will just drop in, and as the
lever is closed, even pressure is applied to the pins of the processor. |
|
Zone Bit
Recording
|
In
older hard drives, there were the same number of sectors on the
tracks near the center of the platter or disk as there was in
the outer tracks. Although the sectors all held 512 bytes, the
physical size of the outside sectors was much larger. Zone Bit
Recording is a method of dividing up drives so that sectors are
all the same physical size and the outside tracks contain more
sectors than the inside tracks. |
