Number Systems and Conversions

This video tutorial covers the basics of number systems and their conversions, focusing on decimal, binary, octal, and hexadecimal systems. It explains how these systems are used in computing and provides step-by-step methods for converting decimal numbers into binary, octal, and hexadecimal forms using both calculators and manual calculations.

Which number system is most commonly used by humans in daily life?

• Binary

• Octal

• Decimal

• Hexadecimal

How many digits are there in the binary number system?

• 2

• 8

• 16

• 10

What is the binary representation of the decimal number 25?

• 11100

• 10101

• 11001

• 10011

When converting decimal to binary, what do you write if there is no remainder?

• 1

• 0

• None

• 2

What is the octal representation of the decimal number 385?

• 501

• 471

• 571

• 601

In octal conversion, why do we divide by 8?

• Because octal is base 2

• Because octal has 8 digits

• Because octal is base 16

• Because octal is base 10

What is the hexadecimal representation of the decimal number 1583?

• 62F

• 6BF

• 6AF

• 6CF

In hexadecimal, what letter represents the decimal number 15?

• A

• F

• B

• E

What is the hexadecimal equivalent of the decimal number 2840?

• B18

• A18

• C18

• D18

When converting decimal to hexadecimal, what base do we divide by?

• 16

• 2

• 8

• 10