# Digital Computer Electronics – Section 1

1. Conversion of decimal number 6110 to it’s binary number equivalent is

A. 1100112
B. 110011102
C. 1111012
D. 111112
E. None of the above

Correct Answer:  C. 1111012

2. An OR gate can be imagined as

A. switches connected in series
B. switches connected in parallel
C. MOS transistors connected in series
D. All of the above
E. None of the above

Correct Answer:  B. switches connected in parallel

3. Address 200H contains the byte 3FH. What is the decimal equivalent of 3FH

A. 63
B. 32
C. 16
D. 38
E. None of the above

Correct Answer:  A. 63

4. Conversion of an octal number 1128 to hexadecimal number is

A. 4A16
B. 5A16
C. 1516
D. 2016
E. None of the above

Correct Answer:  A. 4A16

5. The functional difference between SR flip-flop and JK flip-flop is that

A. JK flip-flop is faster than SR flip-flop
B. JK flip-flop has a feed back path
C. JK flip-flop accepts both inputs 1
D. JK flip-flop does not require external clock
E. None of the above

Correct Answer:  C. JK flip-flop accepts both inputs 1