Basic PC Anatomy
Anatomy of a Hard Drive
A hard drive contains a spinning metal disk. The surfaces of the disk have a magnetizable
coating. An actuator arm with a read/write head on its end is passed over the surface of
the spinning disk. More ...
Plug and Play Resource Allocation
Early PCs used a bus called Industry Standard Architecture (ISA). ISA devices cannot
share resources, each ISA device must have its own IRQ. In 1993, Microsoft and Intel
developed Plug and Play (PnP) to solve this problem. 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 ...
General Overview Of Motherboards
Everyone hears the term motherboard and wonders exactly what it is? The motherboard will
contain connection points for your CPU (Central Processing Unit), Hard drive, RAM (Random
Access Memory), Video Card, and Power Supply. More ...
The Computers Back Connector Panel
So although the computer's back panel appears to be a complicated mess, each connector
has a specific shape, number and pins, and polarity key that allows only the proper
cable to be plugged in. If you get a nice comfortable feeling like your not smashing
pins when you plug a cable in, then you can feel secure that nothing will blow up. 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 ...
How Hard Disks Work
A hard disk drive consists of several main components. The first is one or more thin disks
that spin at anything from 3650 to 15000 RPM. The second major component is the head assembly
which consists of record/playback heads mounted on arms which pivot so that the heads can
be placed over any of the tracks. More ...
IEEE 1284 Parallel Port
The parallel port was primarily used to connect a printer to a PC. Today,
the parallel port is obsolete, being replaced by the USB port. Although now obsolete,
millions of parallel port printers were manufactured and no doubt many of them are still
in use today. 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 ...
Hard Drives - ATA versus SATA
with data rates hitting the 133MB/sec mark the parallel ATA standard is maxing out,
thus industry leaders got together and came up with a new standard known as Serial ATA (SATA). More ...
How to Build Your Own PC - The Smart Way
So you think you can build your own PC? A little knowledge is a dangerous and expensive
thing if it all goes wrong. This article dissects a PC build component by component
illuminating the points about which you need to make wise choices. More ...
XFX GeForce 8200 AMD Dual Core 8GB Barebone Kit
Are you ready to build that high-powered gaming system of your dreams? This XFX GeForce
8200 AMD Dual Core 8GB Barebone Kit can make your dreams come true for a lot less than you think. More ...
A motherboard, also known as a main board, is the primary circuit board inside of a
computer, and is where the central processing unit (CPU), memory, expansion slots,
drives, and other peripheral devices are connected. More ...