Understanding Binary and Denary Number Systems

What are the two states used to represent data in a computer system?

• On and Off

• True and False

• A and B

• 0 and 1

What base is the denary system based on?

• Base-2

• Base-16

• Base-8

• Base-10

In the binary system, what is the highest number that can be represented with a single digit?

• 10

• 9

• 2

• 1

When converting the number 89 to binary using the binary number line method, what is the first column where you write '1'?

• 16

• 32

• 64

• 128

What is the binary representation of the decimal number 89?

• 1011001

• 01011001

• 1100101

• 01100110

What should you do if asked to provide a binary number in 8 bits and your result has only 7 bits?

• Leave it as is

• Add a one at the start

• Add a zero at the start

• Add a zero at the end

How do you verify a binary to denary conversion?

• Multiply each binary digit by 2

• Subtract the largest binary digit

• Add up the values with 1s

• Divide each binary digit by 2

What is the decimal equivalent of the binary number 01100110?

• 102

• 89

• 96

• 100

Why is it important to show your work when converting numbers in an exam?

• To make it easier for the teacher

• To use more paper

• To receive partial credit

• To avoid simple mistakes