CPU

Definition:

The Central Processing Unit, or CPU, is often referred to as the brains of the computer. It is the part of the computer that performs all of the operations and decisions to support the computer's various functions.

Here's a word you may not know...

trending

Trending is a term to describe what words or phrases are being mentioned most frequently on a social network such as Twitter. For example, the word iPad was mentioned 177,000 times on Twitter in the first hour following Apple's announcement of the new product.