Conventionally, a computer consists of at least one processing element, typically a central processing unit (CPU), and some form of memory. The processing element carries out arithmetic and logic operations, and a sequencing and control unit can change the order of operations in response to stored information. <answer>Peripheral devices</answer> allow information to be retrieved from an external source, and the result of operations saved and retrieved.
What are the devices called that are from an external source?
Peripheral devices