What is a CPU? That's not an existential question, but your device would be lost without it. Here's what it does and why picking the right one is so important.

CPU speeds are measured in GHz, but they don't tell the full story of a processor's performance, multi-tasking capability, and other computing features.

If your PC has slowed down, high CPU usage may be the cause. In this guide, we will show you how to check your CPU usage and how to fix it when it's too high.

A payment processor manages the logistics of accepting card payments. It sends card data from the merchant's point of sale to the payment networks and banks.