1.1 Number systems

How many unique digits are used in the denary (base 10) number system?

• 2

• 8

• 10

• 16

In the denary (base 10) number system, how do the column headings (e.g., 1s, 10s, 100s) increase as you move from right to left?

• They increase by adding 10.

• They increase by a factor of 2.

• They increase by a factor of 10.

• They increase by adding 1.

What are the only two unique digits used in the binary (base 2) number system?

• 0 and 1

• 1 and 2

• 0 and 9

• 1 and 10

What is the denary (base 10) equivalent of the binary number 1011?

• 3

• 5

• 9

• 11

What is the range of positive numbers that can be represented using 16 bits in the binary number system?

• 0 to 255

• 0 to 1024

• 0 to 65,535

• 0 to 32,768

Which symbols are used to represent the hexadecimal digits 10 through 15?

• 10, 11, 12, 13, 14, 15

• A, B, C, D, E, F

• X, Y, Z, W, V, U

• !, @, #, $, %, ^

How is the denary number 2 represented in the binary number system?

• 01

• 10

• 11

• 00

What is the hexadecimal equivalent of the denary number 10?

• 10

• F

• A

• B