IT DICTIONARY POCKET

8. YiB Yobibyte A yobibyte is a unit of data sto
9. YIM that equals 2 to the 80th powe
1,208,925,819,614,629,174,70
bytes. While a yottabyte can b
estimated as 10^24 or
1,000,000,000,000,000,000,00
bytes, a yobibyte is exactly
1,208,925,819,614,629,174,70
bytes. This is to avoid the
ambiguity associated with the
of yottabytes.

Yahoo! Yahoo! Instant Messenge
Instant
Messenger

10. YKYBHTLW you know In this expression, hacking means
you've "programming," not "attempting
been computer crime."
hacking
too long
when

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11. YMMV our mileage A warning that not
may vary everything described in a
manual will work exactly
the way it promised to.

12. YP Yellow Pages the original name for the
NIS system before British
Telecom asserted their
trademark.

13. YPN Yahoo an advertising program run
Publishers by Yahoo. Web site owners
Network can enroll in this program
to enable text and image
advertisements on their
sites. These ads are
administered by Yahoo and

generate revenue on a
per-click basis.

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14. YUB luminance (Y) Year Year Year Year -
chroma (UV) Month Month - Day Day

15. YYYY- Year Year The ISO standard formula
Year Year - for writing dates, which
MM-DD
Month Month avoids the Century Date
- Day Day Change (Y2K) problem.

16. Yellow Book Published by Philips and

Sony, the 'Yellow Book'
used the Red Book as its
basis for the physical
specifications of sectors in
a CD-ROM--designed for
computer data.

17. youngest the historical version of a
version data set that is

chronologically closest to
the base version in a

generation group.

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18. Youtuber a person who produces

video content for the video
sharing site Youtube.

19. Yukon Yukon is the code name
used for the beta version

of Microsoft's SQL Server
2005. SQL Server 2005 is

said to provide enhanced
flexibility, scalability,

reliability, and security to

database applications, and
to make them easier to

create and deploy, thus
reducing the complexity

and tedium involved in
database management.

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1. ZAPP Zero A virtual tree machine
Assignment architecture in which a process
Parallel tree is dynamically mapped
Processor onto a fixed, strongly
connected network of
processors communicating by
message passing.

2. ZAW Zero A Microsoft initiative launched
Administration in 1997 to lower the TCO
Window associated with the Windows
platform by reducing costs
associated with administration.

Many of components
introduced under the ZAW
umbrella were incorporated as
regular functionality within
Windows 2000.

3. ZB Zettabyte Unit of storage. Often
abbreviated to ZB. 1 ZB = 2 to
the seventieth power bytes =
1,180,591,620,717,411,303,424
bytes = 1024 exabytes . 1024
zettabytes = 1 yottabyte.

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4. ZBR Zero Bug Point in the software
5. ZBR / Release development at which all
features are correctly
ZCAV Zoned-bit implemented and have no
recording / bugs logged against them
6. ZBTSI Zone
Constant ZBR is a method of
Angular physically optimizing the
Velocity utilization of a hard drive
by placing more sectors in
the outer tracks than in the
inner tracks. This technique
is also known as zone-bit
recording, zone recording,
zone-density recording, or
multiple-zone recording.

Zero Byte A technique used with the
Time Slot T carrier Extended
Interchange Superframe Format (ESF)
in which an area in the ESF
frame carries information
about the location of all-
zero bytes, eight
consecutive zeros, within
the data stream.

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7. ZCS zero code A coding method used with
8. ZCT suppression alternate mark inversion to
prevent sending eight
successive zeros. If eight
successive zeros occur, the
second-least significant bit
is changed from a 0 to a 1.

AMI with ZCS does not
support clear channel
operation.

zero count used in deferred reference
table counting to record objects
whose reference counts

have dropped to zero but
which have not been
processed to see if they
can be reclaimed.

9. ZDBop Ziff-Davis The division of Ziff-Davis,
Benchmark Inc. that develops the
Operation benchmark programs used
by Ziff-Davis publications,
including BatteryMark,
BrowserComp, MacBench,
NetBench, ServerBench,
WebBench, WinBench, and
Winstone.

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10. ZDL Zero Delay Technology designed to
Lockout prevent beaconing stations
from entering into a Token
Ring by locking out faulty
stations.

11. ZDN / Ziff Davis Largest computer
Network publication company
ZDNet network:

12. ZDO ZigBee Device a protocol in the ZigBee
Object
protocol stack, is
responsible for overall
device management, and
security keys and policies.
The ZDO is like a special
application object that is
resident on all ZigBee
nodes.

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13. Zeroconf zero a method of networking
configuration devices via an Ethernet
(IP cable without requiring
networking) configuration and
administration.

14. ZFS Zettabyte File A distributed file system
System from Sun that was added
to OpenSolaris in 2005
zSeries File and Solaris 10 in 2006.
System
A distributed file system
from IBM for its zSeries
mainframes. In zFS,
storage management is
separated from file
management.

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15. ZIF Zero Insertion ZIF is a type of CPU
Force socket on a computer
16. ZIL motherboard that allows
17. zine for the simple
replacement or upgrade
of the processor.
Processors that use a ZIF

socket can easily be
removed by pulling a
small release lever next
to the processor and
lifting it out. The
replacement processor is
then placed in the socket
and secured by pushing

the lever in the opposite
direction

Zork Language used by
Implementation Infocom's Interactive
Language Fiction adventure games.
Interpreted by the

zmachine, for Unix and
Amiga.

electronic an earlier usage in print
magazine media that derived from
magazine and described
"small press" or
personally distributed
magazines or newsletters.

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18. ZINK Zero INK An inkless printing
technology from ZINK
Imaging, LLC., Waltham,
MA www.zink.com) that
was introduced in early
2007. The ZINK paper
contains layers of dye

crystals that turn color
when activated by heat.

19. ZIP Zone AppleTalk session layer
Information protocol that maps
Protocol network numbers to zone
names. ZIP is used by NBP
to determine which
networks contain nodes

that belong to a zone.

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20. ZLE zero-latency A strategy that aims for
enterprise instantaneous awareness
and appropriate responses
to events across an entire
virtual enterprise. As soon
as new information is
captured by any

application, it is made
available to all other
interested parties. The ZLE
concept is closely related
to that of the RTE, a
strategy to progressively
remove delays in the
execution of an

enterprise's critical
business processes.

21. ZMA Zone A data-link-dependent
Multicast multicast address at which
Address
a node receives the NBP
broadcasts directed to its
zone.

22. ZNA Zero Network all registration, profiles,
Administration policy kept in 1 place

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23. ZOPE Z Object Publishing free, open source Web
Environment application platform
used for building high-
performance, dynamic
Web sites.

24. ZRTP (Zimmerman ) a VoIP encryption
Real-Time extension for the RTP.
Transport Protocol The "Z" in "ZRTP" is
the first letter of the
surname of Phil
Zimmermann, an
engineer best known
for inventing PGP.
ZRTP is a part of
a SDK for an
encryption program
Zimmerman created
called Zfone.

25. ZTE Zhong Xing a Chinese corporation
Telecommunication that designs and
Equipmen manufactures
telecommunications
equipment and
systems

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26. ZTLP Zero In telephony, a reference
Transmission point for measuring the
27. Zsh Level Point signal power gain and
28. ZV port losses of
telecommunications circuit
/ ZVP at which a zero dBm signal
level is applied and used

for system design and
testing.

Z shell A UNIX command
interpreter.
Zoomed Video
port ZV port is a technology
that supports the delivery
of full-screen motion video
and multimedia to
notebook computers. The
ZV port allows special
software and a version of
the PC Card called a ZV
Port Card to provide a
separate dedicated, point-
to-point bus or path from
continuously arriving video
signals directly to the
display controller. ZV ports
are provided in IBM,
Toshiba, and other
manufacturers' notebook
computers.

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29. Zapping Considered to be the

lowest form of software
programming known to

mankind, it involves
altering the assembly code

in hex format after it has
been output from a

complier or assembler.
Typically done when there

is a compiler bug, the
proper data is not being

generated, or the original
source code was lost.

30. zero day a software vulnerability
that has been exploited by

malicious hackers on or
before the day the

software creators become
aware of the problem

31 Zero Wait Refers to a system that

State allows the processor to
work at full clock speed

regardless of the clock
speed of RAM.

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32. ZigBee A vendor initiative started

(alliance / by Philips Semiconductor,
modules) Honeywell and Invensys

Metering Systems and now
including more than 20

companies. It is
responsible for developing

applications for technology
based on the IEEE

802.15.4 standard

modules are essentially
transceiver modules that
add wireless networking
capabilities to electronic
devices. They are used in
remote monitoring
machine-to-machine
communications,
automation systems in
home and offices, fridges,
wireless sensor networks

along with other
applications.

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33. -zilla an English slang suffix, a

back-formation derived
from the English name of

the Japanese movie
monster Godzilla. It is

popular for the names of
software and websites.

This trend has been
observed since the

popularization of
the Mozilla Project

34. zine Small, often free magazine,

usually produced by
hobbyists and amateur
journalists.

35. zip (file) An open standard for

compression and
decompression used widely

for PC download archives.

36. zip drive a large capacity floppy disc

drive developed by
IOMEGA Corporation. Used

for backing up important
data.

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37. Zombie a computer that a remote

attacker has accessed and
set up to forward

transmissions (including
spam and viruses) to other

computers on the Internet.
also known as a zombie

army

an abandoned, unkept or
sadly out-of-date Web site.

A user that surfs the web
hours on end and never
seems to sleep or tire.

38. zone A logical group of network
devices.

39. zSeries IBM's 64-bit mainframe

product line, which
includes its z800, z900 and

z990 mainframe servers.
The zSeries products are a

re-branding of, and major
upgrade to, IBM's S/390-

class mainframe

computers002E

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40. zune The Zune is a portable

digital media player from
Microsoft . The first

version, released in
November of 2006, is

about the size of a deck of
playing cards and weighs

5.6 ounces.

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