For example, in FORTRAN, some input/output statements such as the READ or WRITE statements contain an ordered pair of numbers which identifies the LUN of the file or other data source or destination, and (usually) also, the FORMAT of the data to be read or written, as in this example:
Central processing unit | Law & Order: Special Victims Unit | The Unit | Larissa (regional unit) | Economist Intelligence Unit | Diesel multiple unit | central processing unit | Company (military unit) | UNIT | unit | Lucky Number Slevin | Chania (regional unit) | Reynolds number | mya (unit) | Mach number | diesel multiple unit | Trikala (regional unit) | serial number | Random number generation | International Standard Book Number | G-Unit | Air Force Outstanding Unit Award | prime number | Personal identification number | number | Navy Unit Commendation | Kastoria (regional unit) | Two in a Million/You're My Number One | Social Security number | Rikki Don't Lose That Number |