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Victims of Sandy Hook

Stop the Slaughter of Innocents. Congress is bought and paid for by gun lunatics and gun promotion groups. If you want to live in a safe America, help buy Congress back for America. Send a donation to Mayors Against Illegal Guns, 909 Third Avenue, 15th Floor New York, NY 10022

Basic PC Anatomy

AMD's Phenom II Processor
Phenom II is AMD's family of 45 nm multi-core processors and is the successor to the original Phenom. In the Phenom II, the shared L3 cache increased from 2MB to 6MB. The chip has an integrated, dual-channel memory controller that supports DDR3 RAM, and 4000MHz HyperTransport technology. More ...

SD (Secure Digital) Memory Card Basics
SD cards come in a variety of sizes, storage capacities, and transfer speeds. This makes it confusing for users to choose the correct memory card for their products. This article touches on the SD technologies to help you get the correct SD memory card. More ...

PC Video
The video circuits of a computer take digital data and arrange it for display on a screen. In the past, PCs used CRTs (Cathode Ray Tubes) for video display. Today's PCs use LCDs (Liguid Crystal Displays). Whether the display is CRT or LCD, the image is created with a matrix of dots (called pixels for picture elements). More ...

Understanding the Software Layers of a Computer
You select File | Print in the menu and the printer comes to life, feeding out a copy of your document on paper. It seems like a simple process, but in reality your request passed through many layers of software before reaching your printer. More ...

All About Your Computer's BIOS
Are you confused by the computer BIOS? The BIOS is a fundamental component of any PC and if you really want to get into the guys of a computer, it?s good through understanding what BIOS Is all about. More ...

Mach Speed P4MSD-800 D2 Via Socket 775 MicroATX Motherboard and Intel Pentium D 940 3.20GHz Processor Bundle
Based on the VIA P4M800 chipset, the Mach Speed P4MSD-800 D2 motherboard supports up to 2 DDR2 memory modules at 533MHz, up to 2GB. This high-end platform also supports AGP 8X, SATA, 6-channel audio, USB 2.0, Fast Ethernet LAN and more. More ...

CompTIA A+ Training Kit - Safety Issues
When working on computers it's important to pay attention to safety considerations. CompTIA A+ Training Kit teaches computer safety issues as required for CompTIA A+ certification. More ...

FREE Ebook - Basic PC Anatomy
This ebook explains the main components and functions of a computer in an efficient and concise manor without wasting your time. When you finish reading it, you'll understand basic PC anatomy. More ...

How Does Wireless Internet Work?
Just as we broke free from phone lines, we can now access the Internet from just about anywhere via a wireless connection. Wireless Internet access is really much simpler than most people think. This article briefly explains how it works. More ...

Network Interface Card (NIC)
A Network Interface Card (NIC) is an expansion card that allows a PC to connect to a network. Though there are many different types of networks, PCs almost always use a NIC that interfaces to a wireless network or an Ethernet network. More ...

MPEG4, H.264, MJPEG Compression for DVR Recording - What's the Difference?
The main objective of Video compression is to have the smallest file size possible while still preserving good video and audio quality. MPEG4, H.264, and MJPEG are three DVR CODECs that aim to compress the videos for transferring purposes. Each of these formats have their own strengths and weaknesses. More ...

The RS-232 Serial Port
The RS-232 serial port was used to connect a mouse, modem, and/or printer. The RS-232 serial port is now totally obsolete. I would be very surprised if you ever run into a PC with an RS-232 serial port except possibly in a third-world country. However, I'll briefly describe the it in this article because you may run into a question about it in the CompTIA A+ Certification Exam. More ...

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