4.Which of the following is wrong about CPUs?
(A) CPU fetches instructions directly
from RAM
(B) an instruction may take several clock cycles to execute
(C) ALU is the electronic
circuitry that exec cutes all arithmetic and logical operations
(D) inside CPU, registers are
temporary storage areas for instructions or data
(E) all the above are correct (choose this one only
if none of the above can be chosen).
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