(systems theory) That part of a control system that dynamically updates the parameters of an optimizing control function or a direct control function

(plural only, US, military slang) The brown-framed prescription eyeglasses issued to new recruits in the U.S. military, and perceived as notoriously unattractive.

(computing) A security scheme for file-level security (as opposed to traditional user, group levels, or the somewhat stricter role levels). Abbreviated ACL.

(statistics) A method of monitoring a process through the use of control charts.

plural of adaptive-control function

plural of access control list

(aviation) a volume of controlled airspace set up at the confluence of airways in the vicinity of one or more major airports to protect traffic climbing out from and descending into the airports

(computing) A character, added to the beginning of each line of text to be printed on a line printer, that controls the movement of paper through the printer before each new line is printed

(computing) A communication protocol among computers and multimedia devices, such as sound synthesizers, which is optimized for modern networking technology.

(automotive) An electronic system that assists in the control of car stability.