ability, power - possession of the qualities (especially mental qualities) required to do something or get something done; "danger heightened his powers of discrimination"

attention - the faculty or power of mental concentration; "keeping track of all the details requires your complete attention"

language, speech - the mental faculty or power of vocal communication; "language sets homo sapiens apart from all other animals"

retentiveness, retention, memory - the power of retaining and recalling past experience; "he had a good memory when he was younger"

intellect, reason, understanding - the capacity for rational thought or inference or discrimination; "we are told that man is endowed with reason and capable of distinguishing good from evil"

sensory faculty, sentiency, sentience, sense, sensation - the faculty through which the external world is apprehended; "in the dark he had to depend on touch and on his senses of smell and hearing"

volition, will - the capability of conscious choice and decision and intention; "the exercise of their volition we construe as revolt"- George Meredith

command module - a space module in which astronauts can live and control the spacecraft and communicate with earth

compartment - a partitioned section or separate room within a larger enclosed area

ballistic capsule, space vehicle, spacecraft - a craft capable of traveling in outer space; technically, a satellite around the sun

computer, computing device, computing machine, data processor, electronic computer, information processing system - a machine for performing calculations automatically

computer circuit - a circuit that is part of a computer

cartridge - a module designed to be inserted into a larger piece of equipment; "he loaded a cartridge of fresh tape into the tape deck"

constituent, element, component - an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system; "spare components for cars"; "a component or constituent element of a system"

power module - module that provides power to operate other modules

system - instrumentality that combines interrelated interacting artifacts designed to work as a coherent entity; "he bought a new stereo system"; "the system consists of a motor and a small computer"