input device

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A device, such as a keyboard, used to enter information into a computer.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun computing Any of many hardware devices that generate and/or interface input (from a user or elsewhere) to a computer

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a device that can be used to insert data into a computer or other computational device