In computing , input/output , or I/O , refers to the communication between an information processing system -LRB- such as a computer -RRB- , and the outside world -- possibly a human , or another information processing system .

In computing , input/output , or I/O , refers to the communication between a digital processing system -LRB- such as a computer or an embedded system -RRB- , and the outside world -- possibly a human , another processing system or a device .
