Higher Data Representation Quiz

What number is represented by the binary sequence 11111111 in an 8-bit system?

• 127

• 255

• 128

• 256

In the two's complement system, what is the binary representation of -97 in an 8-bit system?

• 01100001

• 10011111

• 10111111

• 10000001

What is the highest number that can be stored in an 8-bit system using two's complement?

• 127

• 128

• 255

• 256

Which system is used to store real numbers (numbers with a fractional part) in a computer?

• Binary system

• Two's complement system

• Floating point system

• Decimal system

What is the binary representation of the number 7.125 in fixed point notation?

• 111.001

• 111.010

• 111.100

• 111.110

What is the signed bit for the fixed point number 1000101.101 in Example 1?

• 0

• 1

• 2

• 3

In Example 2, what is the exponent in two's complement for the fixed point number -0.00010111?

• 00000111

• 11111101

• 00000011

• 11111111

What is the advantage of Unicode over ASCII/Extended ASCII?

• It uses less storage space.

• It can represent a larger range of characters.

• It is faster to process.

• It is more secure.

How many bits are used to store a character in Unicode?

• 7

• 8

• 16

• 32

What is the term used to describe the entire set of characters that the computer can represent?

• Character code

• Character set

• Character map

• Character table