Computer Quiz – Computer System Overview @ 6,7,8,9th Jan 2019

Q.1 How many modes of operation are there in 8255 PPI?

(A) 1

(B) 2

(C) 3

(D) 4

Ans .  C

Q.2 The RST 5.5 Interrupt Service routine starts from location.

(A) 0020 H

(B) 0024 H

(C) 0028 H

(D) 002C H

Ans .  D

Q.3 If instruction RST is written in a program the problem will jump to location.

(A) 0020 H

(B) 0024 H

(C) 0028 H

(D) 002C H

Ans .  C

Q.4 SN 7410 IC is a ….

(A) Triple 3 input NAND gate

(B) 2 input NAND gate

(C) Triple 3 input NAND with open collector

(D) None of these

Ans .  A

Q.5 Microprocessor 8085 is enhanced version of …. With essentially the same construction set.

(A) 6800

(B) 68000

(C) 8080

(D) 8000

Ans .  C

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