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Quick References

Basic Troubleshooting Steps Beep Codes
Computer Ports / Connectors  New Computer Security Threats  New
CPU Types and Specifications DVD Formats  New
File Extensions File Size Conversion Table
HTTP Status Messages IBM Diagnostic Codes
Linux Reference Guide  New Maximum Dedicated Bandwidths
Memory Styles and Types Modem AT Commands, S Registers and RS-232C pins
OSI Network Model Partition Size vs. Cluster Size
RAID Levels Explained  New Regular Expressions  New
Shortcut Keys Standard DMA, I/O and IRQ Assignments
TCP and UDP Port Numbers Technology Reference Cards
Windows XP TCP/IP Utilities - Netsh  New Wireless Networking Standards

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 Basic Troubleshooting Steps  Basic Troubleshooting Steps:Reference for basic troubleshooting steps for the following topics: System or Windows 9x will not boot up, Working Under the Hood, Replacing Hardware Drivers, Windows 9x Troubleshooting Tools, Printer Problems and Network Troubleshooting.
 Beep Codes  Beep Codes:Bios error beep codes for several different bios. Beep codes are generated on system power up to indicate any hardware failure and to also indicate a successful POST.
 Computer Ports / Connectors  Computer Ports / Connectors:Reference to computer ports and the port color codes found in the PC99 specification.
 CPU Types and Specifications  Computer Security Threats:Computer security threats explained.
 CPU Types and Specifications  CPU Types and Specifications:Specifications for Intel, AMD and older IBM processors.
 DVD Formats  DVD Formats:The following information sheds some light on DVD's different flavors, the differences between them and the incompatibility issues that the differing technologies have sprouted.
 File Extensions  File Extensions:Reference for file extension and their associated data formats.
 File Size Conversion Table  File Size Conversion Table:Reference detailing file size conversions from kilobytes to yottabytes.
 HTTP Status Messages  HTTP Status Messages:HTTP status messages displayed by browsers when an error message is sent from a web server, detailing messages from 100 to 500.
 IBM Diagnostic Codes  IBM Diagnostic Codes:Diagnostics code displayed on power up of IBM systems when a hardware failure occurs.
 Linux Reference Guide  Linux Reference Guide:The most used and basic Linux commands for newbies.
 Maximum Dedicated Bandwidths  Maximum Dedicated Bandwidths:Maximum possible speed by connection types.
 Memory Styles and Types  Memory Styles and Types:Reference to different memory styles and types.
 Modem AT Commands, S Registers and RS-232C pins  Modem AT Commands, S Registers and RS-232C pins:Find out what your modem initialization string is doing with this reference to AT commands and S registers. There is also a reference to serial cable pinouts.
 OSI Network Model  OSI Network Model:The Open System Interconnection Model divides the networking process into seven logical layers, starting at the cable and interface card level and ascending to the operating system level. The layers are: Physical, Data Link, Network, Transport, Session, Presentation and Application...
 Partition Size vs. Cluster Size  Partition Size vs. Cluster Size:The cluster size is dependent on the partition size of your disk. This chart will provide this information for different Microsoft file systems.
 RAID Levels Explained  RAID Levels Explained:RAID (Redundant Array of Independent Disks) is a collection of disk drives that offers increased performance and fault tolerance.
 Regular Expressions  Regular Expressions:Reference to common regular expression characters
 Shortcut Keys  Shortcut Keys:Keyboard shortcut keys to popular Windows applications including Windows.
 Standard DMA, I/O and IRQ Assignments  Standard DMA, I/O and IRQ Assignments:Reference to standard DMA, I/O and IRQ assignments for PCs
 TCP and UDP Port Numbers  TCP and UDP Port Numbers:A network port is a special number, ranging from 0-65535, recognized by the TCP and UDP protocols. These protocols use the ports to map incoming data to a particular process running on a computer. The port numbers are divided into three ranges: the Well Known Ports, the Registered Ports, and the Dynamic and/or Private Ports.
 Web Technology Reference Cards  Technology Reference Cards:Quick reference cards, in PDF format, about different web technologies like Apache, MySQL, Cascading Style Sheets, XML, XSLT, XPath, Linux, Oracle, Java...
 Windows XP TCP/IP Administration and Troubleshooting Tools  Windows XP TCP/IP Utilities:Microsoft Windows XP provides a set of built-in utilities for administering and troubleshooting TCP/IP networks.
 Wireless Networking Standards  Wireless Networking Standards:A reference to wireless networking standards.

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