Lesson on Number System

All functions of a computer are based upon the use and manipulation of numbers.

Which number system is most native to a computer?

• Binary

• Decimal

• Hexadecimal

• Octal

What is the decimal conversion of the binary number 11011001?

• 221

• 193

• 217

• 192

What is the hexadecimal conversion of the decimal number 224?

• F0

• E0

• 92

• 9E

What is the decimal conversion of the hexadecimal number 7F?

• 115

• 134

• 201

• 127

What is the binary conversion of the hexadecimal number CB?

• 10111001

• 11100001

• 11000100

• 11001011

Which binary number represents the decimal number 133?

• 10001011

• 11000001

• 10000111

• 10000101

What is the hexadecimal equivalent of the decimal number 241?

• E7

• D3

• F1

• A9

What is the decimal value of the binary number 11111111?

• 0

• 64

• 92

• 256

What is the definition of a bit?

• the section of a network that is bounded by bridges, routers, or switches

• a binary digit used in the binary number system, either 0 or 1

• the interface on an internetworking device, such as a router

• the network areas within which data packets that have collided are propagated

Which of the following phrases best describes the decimal numbering system?

• It is also called the Base 100 Number System.

• It is based on powers of 1.

• It uses the 10 symbols 0 - 9.

• It is the same as the ASCII numbering system.