Final answer:
The description of CMOS as a low-energy chip that draws power from a battery while the computer is off is discussed in the subject of Computers and Technology.
Step-by-step explanation:
The subject in which the description of CMOS as a low-energy chip that draws power from a battery while the computer is turned off is discussed would be Computers and Technology. This type of information typically relates to computer hardware and how energy is conserved in electronic devices, which is part of a computer science or technology curriculum.
CMOS, which stands for Complementary Metal-Oxide Semiconductor, is a technology used for constructing integrated circuits. These circuits are used in microprocessors, microcontrollers, and other digital logic circuits, and they are known for their low power consumption. When a computer is turned off, the CMOS chip continues to draw a small amount of power from the battery to maintain system time and BIOS settings.