Key Definition/Meaning:

1. A value used to identify a member of a set. Usually the elements of the set are records (n-tuples), in which one of the fields holds the key. Variations allow multiple key fields or any field to be used as a key.

2. A value used to establish authority to access particular information.

3. A value used as a basis for encryption. See cryptography.

4. See keyboard.

Near by Terms: Kernel Key Keyboard Keyed Sequential Access Method Keypad Keypunch Key Sorting Key to Disk Key to Tape Keyword Keyword Parameter