Operated or controlled manually, rather than by automatic, electronic or other means.

(software) Software for controlling the allocation and use of various hardware resources (memory, CPU time, disk space, input and output devices) to tasks and remote terminals.

(psychology) A technique of behavior modification through positive and negative reinforcement and positive and negative punishment.

Alternative spelling of postoperative

A description, usually graphical, showing the major participants or components in a system and their interrelationships.

plural of binary operation

(arithmetic, computing) Any one of the four basic operations in arithmetic: addition, subtraction, multiplication or division; any one of said operations as implemented on a computer.

(algebra) An operation taking two operands.

(algebra, computing) A symbol representing unary operation; an operator taking one operand.

(set theory) A mathematical operation that returns a set taking one or more sets as input.