Here are 50 Computer Security Tutorial Videos hosted by security-freak.net. This site’s author says that it is an attempt to lower the entry barrier for starting computer and network security research. Its objective is to present free videos to explain difficult security topics, such as raw sockets, packet injection, etc. This site will teach you many computer security topics, but it is left to the visitor to further pursue what is taught and to experiment and learn further.
Basic Socket Programming
4 Videos - 65 mins
Presentation on Socket Programming basics  (25 mins)
“Type with Me” exercise - a simple TCP server  (19 mins)
Coding a TCP Echo server  (13 mins)
Coding a TCP Echo client  (9 mins)
Packet Sniffing using Raw Sockets
7 Videos - 86 mins
Presentation on raw socket basics  (14 mins)
Sniffer coding basics  (15 mins)
Sniffer - Ethernet header parsing  (10 mins)
Sniffer - IP header parsing  (14 mins)
Sniffer - TCP header parsing  (10 mins)
Sniffer - Data parsing  (9 mins)
A look at Tcpdump and Ethereal  ( 14 mins)

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This software makes it easy to optimize your system to ba able to play newer and resource hungry games, GameGain allows you to modify your computers settings to increase gaming performance and to avoid slowdowns and glitches. All adjustments and settings are done from an easy to use interface that only requires you to click a button. Your original settings can also be restored in the same manner. The program changes the maximum and minimum cache sizes, animation settings, file allocation buffers, application priority levels and several other options. All these settings could be changed manually from various Windows dialogs, however GameGain lets you access, optimize and restore them with a single click.

Here are some tutorials in java on various topics , basically from the basics of java  free Java Course Lessons from rocw.raifoundation.org. These will help you get a better grasp. The areas covered by these include: Working With Objects, Arrays And Conditionals, Loops, Classes, Methods, Java Applets, Animation And Threads, Sounds, Exceptions, Multithreading, Ui Actions And Events, using the Java Abstract Windowing Toolkit, Networking, Packages And Interfaces, Streaming-Input, Streaming-Output, and JDBC. This site offers many online computing and I.T. courses that can be freely used for self-study and in the classroom. Here is a google search you can use to find the course lessons you are looking for. Just change the ‘java’ keyword to what you need.
Java Programming Course Lessons:
Lesson 1:  Java Overview And Installation Tips
Lesson 2:  An Introduction To Java Programming
Lesson 3:  Object-Oriented Programming And Java
Lesson 4:  Basics Of Java Programming

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As the name suggests it simply allow you to change the colour of your XP folders.iColorFolder enables you to easily customize the color of each

Windows XP folder icons, using one of the standard color choices, or a custom folder skin .iColorFolder is a very light soft, that doesn’t stay in memory. It uses a native functionnality of WindowsXP to be more efficient. Discover it’s simplicity: with a single right-click on a folder you colorize it ; the necessary and only the necessary. iColorFolder is proudly an Open-Source program. Like the folder icons, iColorFolder makes folder navigation in Windows easier, in this case by letting you assign colors to your folder icons, which is done from the right-click context menu. It also lets you assign custom icons and comes with three different icon skins, but it also works fine if you’re already using some icon customization/skin tool. Even better, iColorFolder is open source software and takes up little memory.

It is essential to keep the registry in your system as organized and compact as possible in order to enhance the computer performance. Periodically organizing and compacting the registry files can significantly speed up the computer and boost the system’s accessibility. To conduct Registry Defragmentation exercise, users can try the newly released RegDefrag 1.5 by Quicksys. RegDefrag 1.5 is a freeware utility to perform the defragmentation task. It will optimize registry by removing gaps, fragments and wasted space in Windows registry files and thus improve the system performance.

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