Keyboard This is an input device that is used to enter data, characters and commands into a computer. This includes both keyboards and keypads that are found on most smart phones and tablet PCs.
Key-logger a computer program that records every keystroke made by a computer user, especially in order to gain fraudulent access to passwords and other confidential information. Such as passwords, credit card details etc.
Keypad A miniature keyboard or set of buttons for operating a portable electronic device, telephone, or other equipment
key-to-disk Keyboard entry of data at a computer for direct storage to disk.
keywords Instructions within a computer program.
kilobyte 1024 consecutive bytes of data. See byte.