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| Definitions for thousands of the most current IT-related words. |
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| | Browse for technology definitions by category: | |
 | Word of the Day
Tier 0 (tier zero) is a level of storage that’s faster, and perhaps more expensive, than any other level in the storage hierarchy. "Of all the enterprise technologies affected by virtualization and cloud computing, storage is most in need of a makeover." -- Arthur Cole |  | 2012 Global IT Forecast
IT spending is expected to grow modestly in the United States this year, but what's happening in the rest of the world? Browse our 2012 Global IT Forecast and find out. . |  | TechnologyGuide Review
The Apple 13" MacBook Pro is the smallest of the Apple MacBook Pro family. Is this the right laptop for you? Read our review and find out. |
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| Last updated on: Feb 8 2012 |
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| Cheat Sheets for the information that you use most frequently. |
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802.11 standards
Comparison chart for IEEE 802 wireless standards
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Advertising terms on the Internet
Printable list of Internet marketing words
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ASCII symbols
How to type special ASCII symbols
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Categories of twisted pair cabling systems
Comparison chart for CAT 5, CAT 6, CAT 7 etc.
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Chat acronyms
Twitter, chat and text messaging abbreviations
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Every file extension in the world
File extension quick look-up reference
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
#
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Fast Guide to RAID
Compare the different kinds of RAID
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Fast Guide to RAM
Compare different types of RAM
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Fast Guide to Storage Technologies
Comparison chart for storage advantages and limitations
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Kibi, mebi, gibi, tebi, pebi and all that
Handy table explains the most often-used prefixes and their meanings
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Logic gates
AND, OR, XOR, NOT, NAND, NOR and XNOR
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OSI reference model illustrated
Physical, data-link, network, transport, session, presentation, application
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Percent increase/decrease calculator
Handy calculator for finding percent change
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What is the speed of...
Summarizes and compares data rates for different telecommunication carrier technologies
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tier 0
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