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 ...
Device Driver Basics
In this article, I'm going to reveal in plain English what a driver is, why we need drivers, and exactly where the drivers are hiding. To give you a basic understanding, I'm going to go back, way back, to the early days of computers. More ...
Laptop Computer Bottom Access Covers
Laptops are made easy to upgrade and repair by the location of access covers on the bottom of the computer. Covers are placed there for access to frequently upgraded components like the hard drive and the memory. More ...
Hard Disk Drive Basics
On a hard disk, data is stored in thin, concentric bands. A drive head, while in one position can read or write a circular ring, or band called a track. There can be more than a thousand tracks on a 3.5-inch hard disk. More ...
A Guide To Building Your Own PC
What do you need to build your own custom computer? Believe it or not, it's not as complicated as it seems. The processor you choose usually determines which motherboard you select. Motherboards are designed to work with specific CPUs, indicated by the type of socket that the processor fits into. More ...
Basic PC Anatomy Inkjet Printers
There are two main inkjet technologies, thermal and piezo-electric. Thermal technology uses silicon wafer heating elements, Epson uses a proprietary piezo electric technology. 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 ...
Understanding PC Data Buses
Physically, a data bus is the connection between the CPU and other devices on the PCs motherboard. A data connection can be serial or parallel. The data bus used in first-generation PCs used 8-bit architecture. PCI Express uses switched serial connections. 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 ...
How is Data Written, Stored On, and Erased From Hard Disks?
Inside your hard disk is a stack of one or more optically perfect platters where data is stored magnetically. When the drive is originally formatted, it is laid out in a pattern of concentric circles (cylinders) and wedges (sectors). 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 ...
Hard Disc Fundamentals
This article describes the main technical fundamentals of Hard Disc Drive and its operation. I focus my attraction on the particular perspective of describing Physical and Logical view of HDD. This article also brings out the technology wise company working on this hard disc drives and this related technology. More ...
Understanding Modern PC Specifications
There is a huge variety of different PCs available out there. Its no wonder that consumers are confused about what to buy. This article explains modern PC specifications. More ...
