Fill in the blanks.

1. Computer can understand only two _____________.
2. A series of eight bits makes a _____________.
3. A byte of memory can store a decimal number in the range _____________.
4. A computer uses a _____________, which can have only two values : 0 and 1.
5. The positional value is based on the _____________ of the number system's base value.

Write True or False.

1. Computer understands only decimal numbers.
2. A series of eight bits makes a byte.
3. The order of the digits is significant, according, to which it carries the weight.
4. Understanding of number systems helps you in calculations.
5. There are five most common number systems.

Multiple Choice Questions (MCQs).

1. A Computer can "talk" and understand in numbers, that too in only two numbers called ___________________ numbers.
   1. binary
   2. octal
   3. hexadecimal
2. ___________________ and ___________________ numbers are a convenient way to represent binary numbers used by computers.
   1. Octal, hexadecimal
   2. Binary, octal
   3. Decimal, octal
3. Decimal number has base ___________________.
   1. 2
   2. 10
   3. 16
4. 15 in hexadecimal number is represented by ___________________.
   1. A
   2. E
   3. F
5. A more compact representation is used by hexadecimal number, which groups ___________________ binary digits together.
   1. 6
   2. 8
   3. 4

Why computers use Binary number system?

Why Octal and Hexadecimal numbers used by computers?