A computer system with a cache memory has an average memory access time of TM 60 ns with a hit ratio of h= 85%. The primary memory access time is T-220 ns. What is the cache memory access time, Te? Show the equation & all steps of the computation. For each of the following cache organizations, indicate all their fields with their names and sizes in bits. Assume a main memory size of 4 Gigabytes & a cache memory capacity of 64 Kilobytes of main memory data. Clearly indicate which address bits refer to cache addressing & which bits refer to tag information. Compute the total capacity of the cache memory in bytes. (1) Direct Mapped Cache Organization (ii) Four-Way Set Associative Cache Organization