DIGITAL COMPUTER ELECTRONICS QUIZ

The output 0 and 1 levels for TTL logic family is approximately

None of these

-1.75 and -0.9 V

0.1 and 5 V

0.9 and 1.75V

0.6 and 3.5 V

TRUE ANSWER : ?
YOUR ANSWER : ?

The ASCII code is a 7-bit code for

letters

None of these

other symbols

numbers

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Cyclic codes are used in

arithmetic and logical computation

None of these

All of these

continuously varying signal representation

data transfer

TRUE ANSWER : ?
YOUR ANSWER : ?

Conversion of an octal number 1128 to hexadecimal number is

4A16

None of these

2016

1516

5A16

TRUE ANSWER : ?
YOUR ANSWER : ?

Division of 1000112 by 1012 is

10102

1012

1002

1112

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

A positive AND gate is also a negative

None of these

NOR gate

OR gate

NAND gate

AND gate

TRUE ANSWER : ?
YOUR ANSWER : ?

Conversion of an octal number 1368 to hexadecimal number is

70000000000000000

50000000000000000

5D16

5A16

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

An OR gate has 6 inputs. How many input words are in its truth table?

16

64

None of these

32

128

TRUE ANSWER : ?
YOUR ANSWER : ?

A 2's-complement adder-subtracter can add or subtract binary numbers. Sign-magnitude numbers represent _ decimal numbers, and 2's complements stand for _ decimal numbers.

hexa, sign

None of these

negative, positive

sign, hexa

positive, negative

TRUE ANSWER : ?
YOUR ANSWER : ?

A bus is a group of _____ carrying digital signals.

wires

gates

registers

None of these

transistors

TRUE ANSWER : ?
YOUR ANSWER : ?

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