Binary

What is a number system?

• A way of writing alphabets

• A collection of formulas

• A method of representing numbers using digits

• A type of computer program

What does base or radix mean in a number system?

• The smallest digit used

• The total digits excluding zero

• The largest possible digit

• The number of unique digits including zero

What digits are used in the binary system?

• 0 and 1

• 0–9

• 0–7

• 0–F

Which base is used in the octal number system?

• 2

• 8

• 10

• 16

Which system is most common in daily life?

• Binary

• Octal

• Decimal

• Hexadecimal

Which digits are included in hexadecimal?

• 0–7

• 0–9 and A–F

• 0–9 only

• 0–15

1011₂ is equal to which decimal number?

• 10

• 11

• 13

• 15

Decimal 26 equals what in hex?

• 26

• 2A

• 1A

• 20

In hexadecimal, the letter A represents:

• 9

• 10

• 11

• 12

Binary to decimal conversion is done by:

• Multiplication by 2^position & sum

• Division by 2

• Addition of digits

• Subtracting digits