The act of operating or working; operation.

operativeness

Obsolete form of operose.

plural of NOT operator

(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.

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

The time interval between the instant of the occurrence of a specified input condition to a system and the instant of completion of a specified operation.

present participle of co-operate

(finance) Negative operating income.

(business, accounting) Any expense incurred in running a business, such as sales and administration, as opposed to production.