Tech 101: What is the CPU?
Whether you call it a central processing unit, CPU or simply processor, it all means the same thing. This little chip is the brain of your desktop computer, smartphone, laptop, tablet and any other computing device. It may be small but it carries out commands that programs and apps deliver to the computer. The processor interprets inputs from hardware like the mouse or keyboard, and helps manage multitasking.
Modern CPUs are multi-core, which means they combine two or more separate CPUs in a single processor so a PC has increased flexibility to manage demanding software. You can easily find dual- and quad-core processors.
Uses of a multi-core CPU in your computer