T4Tutorials .PK

Chapter 7 INTERFACING TO INTEL 8088 MCQs

1. …………………. have separate address space.

(A) Polled I/O


(B) Isolated I/O


(C) Memory Mapped I/O


(D) None of all




2. In ………….. microprocessor manually checks if there are any I/O requests available.

(A) Memory Mapped I/O


(B) Isolated I/O


(C) Polled I/O


(D) None of all




3. ISR is a -----------------

(A) Hardware


(B) Both (A & B)


(C) Software


(D) None of all




4. Flag ------------ requests for service

(A) TF


(B) IF


(C) Both (A & B)


(D) None of all




5. There are ------- basic address decoding techniques used in 8086.

(A) 2


(B) 6


(C) 4


(D) 8




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