Number Systems

What is the number system the computer can understand?

• Decimal

• Binary

• Hexadecimal

• Octal

The number system we use from our childhood is decimal number system.

• True

• False

358_n

What is n?

• 8 or 10

• 10 or 16

• 8 or 16

• 2 or 10

Each number system consists of...

• a base

• a unit and a number

• a unit, number and a base/ radix

• numbers

Octal number system uses digits from 0 - 8

• True

• False

Why do they use A - F instead of 10 - 15 in Hexadecimal number system?

• To remove the confusion two digit numbers (10-15) can cause

• Because people are bored

• Not to be same as the decimal number system

• To be different from the other number Systems (Decimal, Octal, Binary)

Weighting factors of hexadecimal number system are powers of 10 (10⁰, 10¹, 10²,...)

• True

• False

What are the symbols used at the start of a hexadecimal color code?

• # and *

• & and #

• % and @

• &H and #

When a number of hexadecimal number system is expressed in binary form, it takes ............... bits

Meaning of abbreviation RGB is...

• Red, Green, Black

• Red, Gold, Blue

• Rose, Gold, Black

• Red, Green, Blue