Answer:
Tag field = 12
Explanation:
The computer system is a digital system that communicates with electronics or bits of data. Each components in the device also communicate with one another using bits.
The microprocessor is the computing center.of the system. It has a cache memory which retrieves and holds data for the CPU to executes faster. Which block of the cache is tag with a given size of information.
Tag field = length of address - offset bit - block address bit
= 16 - 4 = 12
