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Zap
- The complete
elimination of data on a storage medium, leaving the medium available for
future storage.
Zapf
Dingbats - A font
comprised of printers' symbols from the International Typeface Corp. that
includes arrows, geometric shapes, stars, and circled numbers. It is a
built-in font in PostScript laser printers and can be purchased in Type 1
or TrueType format for other printer types.
Z-axis
- Reference line
representing the third dimension in a three-dimensional plane.
Zero
divide - To divide a
number by zero, which is impossible. Such a calculation produces a result
that can't be calculated.
Zero
Insertion Force (ZIF) socket - Device
that makes the insertion or removal of an Intel Corp. microprocessor to
or from the motherboard easier. The built-in handle eliminates the need
for any special tools and reduces the number of broken chips.
Zero
out - The first 256
bytes of memory in computer systems based on the 5602 microprocessor.
Zero
suppression - To
remove zeros from a number without affecting its value. The number
000.222, for example, could be written as .222.
Zero
wait state - State
where RAM runs at its maximum speed when processing responses from the
microprocessor.
ZIF
socket - Refer to Zero
Insertion Force socket.
.ZIP
- Refer to Zip.
Zip
- Widely used disk
compression format associated with PKWARE and PKZIP (for compressing
files) and PKUNZIP (for decompressing files). The words "zip"
and "zipped" are slang for a compressed file; "unzip"
and unzipped" refer to decompressed files. After a file is
compressed, it is usually given the .ZIP file extension.
Zip
Drive - Manufactured
by Iomega similar to the Standard 1.44" floppy drive, however uses
slightly larger diskettes. Zip Diskettes can hold around 100 MB of data.
Because Zip diskettes are a relatively cheap media and commonly found,
Zip Drives have became very popular in late 1990's.
Zmodem
- File-transfer
protocol that uses cyclical redundancy check (CRC) to detect errors and
is designed to transfer large files. Its predecessors were Xmodem and
Ymodem.
Zone
- Located inside a
local-area network (LAN), zones are subsets of the larger network.
Zone
header - Refer to
header.
Zoom
- To make a window
larger when using graphical interfaces. In many applications, a zoom box
allows the user to maximize a window, making it fill the entire screen.
When the zoom box is selected again, the window returns to its original
size. Can also be referred to as Maximize.
Zoom box - Refer to zoom.
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