Complementary Metal Oxide Semiconductor

CMOS chip, memory chip on which the configuration definitions of a computer are stored

Complementary metal–oxide–semiconductor (CMOS) ("see-moss", ), is a major class of integrated circuits. CMOS technology is used in chips such as microprocessors, microcontrollers, static RAM, and other digital logic circuits. CMOS technology is also used for a wide variety of analog circuits such as image sensors, data converters, and highly integrated transceivers for many types of communication.
See more at Wikipedia.org...

<integrated circuit> (CMOS) A semiconductor fabrication technology using a combination of n- and p-doped semiconductor material to achieve low power dissipation. Any path through a gate through which current can flow includes both n and p type transistors. Only one type is turned on in any stable state so there is no static power dissipation and current only flows when a gate switches in order to charge the parasitic capacitance.
(1999-06-04)