To be useful, a computer must have some means of acquiring new data to operate on and of producing results for eventual human consumption. These functions are called
input and
output, collectively
Input/Output or just
I/O. Many devices facilitate these functions, including
I/O Devices such as
keyboards and
printers,
Interfaces that connect these devices to the [central processing unit]
?, and
I/O Controllers that manage the flow of data among them.
This is a very cleverly named page. (If you didn't know that it was cleverly named, please see
naming conventions. Or just click on the "Input" link at the top of this page. :-) )