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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

Change Raspberry Pi Default Configuration
If you are a US user of the Raspberry Pi, you will discover that when you type, the characters displayed do not match our keyboard. When you type [shift][#] instead you get the British pound symbol. This is because Raspbian (and NOOBS) defaults to UK keyboard settings. More ...

Basic Computer Thermodynamics
Picture the CPU of a computer cooking away because the designer wants to push too much power through a small piece of silicon. If we don't take away that heat as fast as it's created, that CPU will fry! More ...

The Small Computer System Interface (SCSI)
SCSI is complicated to configure and troubleshoot with incompatibility between devices being a common problem. To setup a SCSI system, you need to know which SCSI standard the devices support. The host adapter must match the devices. More ...

Program Flow Charting
Depending upon the language used, program code my be difficult for humans to read and understand. However, one type of programming that is very easy to understand is flow charting. 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 ...

Basic Decoder Circuitry
A microprocessors is a circuit that reads and execute program instructions called opcodes. A decoder is a circuit that converts an opcode into signals tused to control the circuitry of the microprocessor to enable it to perform the instruction. More ...

Intel Chipsets
The original 4.77 Mhz 8088-based IBM PC released in 1981 was built with over 100 discrete logic chips. To lower the cost of manufacturing, the logic was integrated into a couple of chips that were used together as a set. They became referred to as a chipset. 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 ...

AMD's Microarchitectures
A microarchitecture describes the physical features, functions, and the technology level of the processes used to manufacture the core of a microprocessor. This article describes the microarchitectures used by AMD. More ...

External Serial Advanced Technology Attachment (eSATA)
Initially all SATA (and PATA) interfaces were for internal hard disks. With the introduction of eSATA, the SATA interface can be used with external storage media. This puts eSATA in competition with Universal Serial Bus (USB) and Firewire. Especially since, like USB and Firewire, eSATA allows hot swapping. More ...

The PC (PCMCIA) Card
The PC card, technically called the PCMCIA Card is a form factor of a peripheral interface designed for laptop computers. It was originally designed for computer memory expansion. More ...

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