PC Components

The PC is a system composed of well-defined components. Each of the components are theoretically changeable, and though this is not entirely true in practice the modular nature of the computer is nonetheless its strength – though arguably its weakness too.

These guides cover the major computer components of motherboards, interfaces, chipsets and memory. They explain the design and purpose of each component, and show how each works as part of the system to create the heart of the personal computer.


Increasing PC storage demands have strained the limits of innovation. Simple software installations noticeably eat into more hardware with each iteration, but this is nothing next to the exponential data bloating of home digital photography and video. Yet solutions have proved timely and, often, extraordinary.

Computer Memory

Since the introduction of sound and quality graphics capability to home computers, music, photography, and even home video – all have been revolutionized. Perhaps it is hyperbole to say that this has had a profound impact on global society… but then again, is it? A question for later. Here you’ll find out about the humble technology that makes it all happen.


In computing a bus is a data transfer system, but really that’s just another way of describing a bunch of electrical wires. The buses connect components and peripherals to and within the PC, and each bus has an interface. Some of the interfaces have familiar names – USB, EIDE, SATA – but what are they all about?


The motherboard, also known as the logic board or main board, is often compared to the human central nervous system, and it’s an effective analogy. All other computer component messages must pass through the motherboard, whether bound in or out. The motherboard must therefore effectively manage the transfer of data around the PC quickly, constantly, and faultlessly.