Question

Question 31 10 pts Suppose we have a byte-addressable computer using 4-way set associative mapping with 24-bit main memory addresses and 64 blocks of cache. Suppose also that a block contains 32 bytes. The size of the block offset field is bits, the size of the set field is bits, and the size of the tag field is bits. Question 32 1 pts is the oldest and most cost-effective of all mass-storage devices. Magnetic tape Compact dick Floco dick Monti di MacBook Air

pls both 31

Answer 1

1.)

• Given number of bits in main memory address = 24 bits.
• Block size = 32 bits = 2^5.
• So, block offset size = 5 bits.
• Given, number of cache block = 64.
• So, total number of sets in cache = number of block/set size = 64/4 = 16 sets = 2^4 sets
• set size = 4 bits
• tag field size = total address size - (block offset size + set field size) = 24 - (5 + 4) = 15 bits.
• Answer:

block offset field size = 5 bits

set field size = 4 bits

tag field = 15 bits

2.)

• Magnetic tape is the oldest and most cost effective storage device of all mass storage devices.
• Answer: Magnetic tape.