DIGITAL COMPUTER ELECTRONICS QUIZ

A combinational logic circuit which generates particular binary word or number is

None of these

multiplexer

decoder

demultiplexer

encoder

TRUE ANSWER : ?
YOUR ANSWER : ?

Conversion of an octal number 738 to binary number is

1110112

1100102

1111002

1101112

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

One way to simplify the sum-of-products equation is to use boolean algebra. Another way is the _____ map.

Standard

De Morgan

None of these

Karnaugh

Schottky

TRUE ANSWER : ?
YOUR ANSWER : ?

Addition of 1101011012, 1110111012, 0001111112, 1001011012, 1111101112 is

10010000000102

10001010001012

10110101110102

None of these

11110110000102

TRUE ANSWER : ?
YOUR ANSWER : ?

With a NAND latch a low R and a low S produce a _____ condition.

None of these

set

reset

race

no change

TRUE ANSWER : ?
YOUR ANSWER : ?

Conversion of an octal number 1068 to binary number is

None of these

11001102

10001102

100001102

11100102

TRUE ANSWER : ?
YOUR ANSWER : ?

In which of the following adder circuits, the carry look ripple delay is eliminated?

Half adder

None of these

Carry-look-ahead adder

Parallel adder

Full adder

TRUE ANSWER : ?
YOUR ANSWER : ?

The clock signals are used in sequential logic circuits

to tell the time of the day

to tell how much time has elapsed since the system was turned on

None of these

to synchronize events in various parts of a system

to carry serial data signals

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following logic expression is wrong?

1+0+1 = 1

1 + 0=1

1 + 1 + 1 = 1

1 + 1=0

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Conversion of decimal number 4210 to it's octal number equivalent is

478

578

528

None of these

428

TRUE ANSWER : ?
YOUR ANSWER : ?

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