A bus, or computer universal switch, is essential for data transfer within a computer or between more than one. We'll take a look at topics like PCI, SCSI, USB Ports and serial ports.

CPU is a well-known acronym in the computing world, but what is in them? Learn more about CPUs, including the differences between Pentium and Celeron processors, or how graphics cards work.

This section focuses on desktop computers and their attributes. Learn about PCs, DNA computers, Internet TV and even how to build a computer.

In the Hard Drives & Disks section, we explore how they work, what it means when your hard drive crashes and how to add a hard drive to your computer.

Hardware Basics offers tips and tricks for good computer upkeep and explains things like "What does Alt+F do?" or "What are the different kinds of computers?"

Computer networking is the engineering that creates communication between computers and other devices. Learn about ethernet, LAN, routers, modems and home networking.

Memory refers to the amount of storage you have in your computer. We'll explore topics like RAM, caching and virtual memory.

How do OLEDs work? Will the $100 laptop save the developing world? Get answers to these and other questions in this section.

The performance of your computer relates to its supply of power. Learn how PC power supplies, computer batteries and surge protectors also play an important role in computer upkeep.