What is meant by CMOS device?

• It stands for Complementary metal–oxide–semiconductor (CMOS) 
• It is a technology for constructing integrated circuits.
• CMOS technology is used in microprocessors, microcontrollers, static RAM, and other digital logic circuits. 
• CMOS also allows a high density of logic functions on a chip.

Hence the devices are made by this technology called CMOS device.