Basic PC Anatomy
CompTIA Strata Study Guide
Because many jobs in the IT field don't require the in-depth knowledge required for CompTIA A+,
CompTIA Network+ or CompTIA Security+ certification, CompTIA has developed the Strata certification. More ...
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 ...
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the parallel port is obsolete, being replaced by the USB port.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 ...
How does a CD Burner work?
The CD burner or more commonly known as the CD writer has become a standard part of
the PC today. But how does the CD writer actually work? 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 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 ...
Intel's Core 2 Processors
Intel's Core 2 processors, released in July of 2006, are based on the "Core microarchitecture",
a dual core design using a 65nm manufacturing process to put 291 million transistors
on a 143 square mm die. Each core has its own 64KB L1 cache. The two cores share an L2
cache that can be either 2MB or 4MB. More ...
XFX nForce 680i LT SLI Socket 775 Barebone Kit
This affordable kit features an Intel Core 2 Quad Q6700 2.66Ghz Socket 775 Kentsfield
core processor with an 8MB cache, 1066MHz FSB, XFX nForce 680i LT SLI Socket 775 motherboard,
Crucial Ballistix 2048MB PC6400 DDR2 800MHz memory, a Seagate 250GB 7200RPM SATA HDD with a 8MB buffer,
the Ultra X-Blaster Mid-Tower case with a clear side and a muscular 750 watt power supply. More ...
AMD Sempron Processor
The Sempron replaced the Duron as AMD's budget processor. The socket A Sempron is
basically an Athlon XP with half the cache. The socket 754 Sempron is a cut down
version of the Athlon 64 processor with half the cache. More ...
Video - How to Buy a Motherboard
In this video James, computer hardware training coordinator for Interconnection, shows you how
to buy a motherboard. There are a few things you want to keep in mind when buying a motherboard,
like Will the motherboard support 64-bit processors? More ...
How Does a Laptop Battery Work?
There is little difference in how a laptop battery works and how other device batteries work,
except that a laptop battery is more intelligent. An electronic circuit works with the laptop
hardware to manage the power that flows into the battery while recharging and the power that
flows out of each cell of the battery while discharging. More ...
Direct Memory Access (DMA)
In early computers, all data transfers required the processor to read and write single
words from memory until the entire transfer is complete. With DMA, the DMA controller
takes control of the system buses to move data between the device and main memory. More ...