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Every file extension in the world
File extension quick look-up reference
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Our Favorite Cheat Sheets
Cheat sheet charts for programming and end-user applications like Word and Excel
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ASCII symbols
How to type special ASCII symbol
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Bypass IVRS - Talk to a real person - cheatsheet
How to bypass automated systems and get a real person on the phone
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Emoticons from Japan
Japanese Smiley Faces
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Fast Guide to DSL
Data rates and distance limits
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Fast Guide to IT Humor
Fast Guide to IT Humor
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Fast Guide to RAM
Fast Guide to RAM
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Fast Guide to Storage Technologies
Fast Guide to Storage Technologies
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Fast Guide to DTV
Digital Television guide
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Table of Physical Units
Chart listing values in International System of Units (SI) and the meter-kilogram-second (MKS) system
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CAT5 and other cabling categories
ANSI/EIA standards for categories of twisted pair cabling systems
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Chat Abbreviations
Text message shortcuts and abbreviations
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Digital signal (DS) multiples
Standard digital transmission rates
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Error messages for Windows 2000
Quick look-up for Microsoft Windows 2000 error messages
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Error messages for Windows XP Pro
Quick look-up for Microsoft Windows XP Pro error messages
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Fast Guide to CD/DVD
Data transfer rates, rotation speeds and capabilities
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Fast guide to 802.11
IEEE 802 reference chart subdivided into 22 parts that cover the physical and data-link aspects of wireless networking
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Kibi, mebi, gibi, tebi, pebi, and all that
Binary prefix multipliers used to clarify the differnce between decimal (power-of-10) and binary (power-of-2) numeration terms
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Kilo, mega, giga, tera, peta, and all that
Prefix multipliers used to denote quantity
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Learning Guides and Tutorials
Fast reference materials for guided self-study -- technical topics including networking, security, virtualization, backup and recovery
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Logic gates
I/O diagrams for the seven basic logic gates: AND, OR, XOR, NOT, NAND, NOR, and XNOR
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Mathematical Symbols
Mathematical symbols and explanations for what they mean
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OSI Reference Model illustrated
Standard reference model for communication between two end users in a network
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Quizzes
Short quizzes for guided self-study -- technical topics and vocabulary
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RAID reference chart
Printable PDF chart documenting different levels of RAID
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The speed of...
Data rates for end-user and backbone transmission technologies
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