Most computers have additional system parts, such as an optical drive that will allow you to play and record music and video. References Computer Hope: What Is CPU (Central Processing Unit)?

In truth, the system unit is the most important aspect of a consumer-grade computer, at least, for now. Things might change in the future when cloud computing becomes the norm.

Your computer's brain is the CPU: that's where all of the programming and computing happens. But its nervous system is the motherboard, which uses circuits to connect the CPU to the other pieces ...

A Finland-based firm is aiming to increase the performance of the central processing units (CPUs) used in computers by up to 100 times using what the company calls – parallel processing units ...