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Computer Fundamentals - Engineering

Q1:

What is the minimum number of operations required, for a microprocessor with 8 data pins, to read a 32-bit word?

A 1

B 2

C 4

D 8

E None of the above

ANS:C - 4

If a memory chip has 13 address pins (A0..A12), then it has:
213 = 23 X 210 = 8K locations.

If a memory chip has 4K locations, then it should have N pins:
2N = 4K = 22 X 210 = 212 → N=12 address pins (A0..A11)