Given a mips system with 4gb bytes of main memory, a fully associative-mapped cache, and block size of 64 words. how many bits are in the tag field?

The acronym stands for Million Instruction Per Second, an old measure of a computer speed and power, MIPS measure roughly the number of a machine instruction that a computer executes in one second. A word basically consists of letters and a letter consist of an 8-bit combination. Thus, the number of bits would be represented by this formula, (8*n)*64, whereas n represents the number letter is a certain word

Ligma is the answer