You want to design a small portable computer system with memory that can be updated, but that does not lose its contents when the device is turned off. What chip should be used

CMOS

Explanation:

CMOS stands for complementary metal oxide semiconductor. CMOS is in the design of several types of semiconductors. in most computers there are CMOS that are powered by the PC's batteries to save the memory state of date, time, and system setup parameters when the PC looses power. In the question above, given the specified parameters for the new system, a CMOS chip will serve perfectly