Block diagram of a basic computer with uniprocessor CPU. Black lines indicate data flow, whereas red lines indicate control flow. Arrows indicate the direction of flow.
<a href="//commons.wikimedia.org/wiki/User:Lambtron" title="User:Lambtron">Lambtron</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>