COA Unit-1

The value of radix in binary number system is

• 10

• 2

• 8

• 1

The binary equivalent of the decimal number 10 is __________

• 0010

• 10

• 1010

• 010

The octal equivalent of 1100101.001010 is ______

• 624.12

• 145.12

• 154.12

• 145.21

Convert the binary equivalent 10101 to its decimal equivalent.

• 21

• 12

• 22

• 31

Base of hexadecimal number system is 

• 8

• 16

• 2

• 10

Conversion of binary number (101110)₂ to hexadecimal is 

• (35)₁₆

• (46)₁₆

• (2E)₁₆

• (50)₁₆

ASCII stands for

• American Special Computer for Information Interaction

• American Standard Computer for Information Interchange

• American Special Code for Information Interchange

• American Standard Code for Information Interchange

The most widely used code that represents each character as a unique 8 bit code is

• ASCII

• UNICODE

• BCD

• EBCDIC

Computer uses the ___________ number system to store data and perform calculations.

• Binary

• Decimal

• Octal

• Hexadecimal

The hardware address of a computer network device consists of 48 bits.

Which of the following is a valid address in hexadecimal numbers?

• 00E0071944A0

• 0A23B5

• 1E07FG124372

• 398A7E9412110408