N5 CS and DB Revision

Convert this binary number to denary:

0011 1100

• 30

• 60

• 94

• 102

Convert this binary number to denary:

1010 1010

• 128

• 85

• 170

• 255

Convert this binary number to denary:

1111 0000

• 60

• 15

• 120

• 240

Convert this binary number to denary:

0101 0101

• 85

• 170

• 255

• 128

Convert this denary number to binary:

44

• 0010 1011

• 0011 0100

• 0010 1100

• 0011 1111

Convert this binary number to denary:

1100 1100

• 192

• 204

• 156

• 204

Convert this binary number to denary:

0110 0110

• 102

• 102

• 102

• 102

Floating point representation: What is the mantissa in the following number?

0.123 x 10⁴⁵

• 123

• 10

• 45

Floating point representation: What is the exponent in the following number?

0.456 x 10¹²

• 0.456

• 10

• 12

How many bits does extended ASCII use to represent a single character?

• 2

• 7

• 8