Understanding Number Systems in Electronics

In the decimal number system, what does the digit '5' represent in the number 345?

• 50

• 5,000

• 5

• 500

Which of the following is NOT a characteristic of the binary number system?

• Uses only 0 and 1

• Base 2

• Uses digits 0-9

• Used in digital circuits

Which number system uses the digits 0-7?

• Octal

• Decimal

• Hexadecimal

• Binary

What is the decimal equivalent of the octal number 37?

• 31

• 29

• 25

• 23

Which of the following is a characteristic of the hexadecimal number system?

• Used primarily in decimal calculations

• Base 8

• Only uses 0 and 1

• Uses digits 0-9 and letters A-F

What is the first step in converting a binary number to decimal?

• Count the digits

• Multiply by 2

• Add the digits

• Sum the powers of 2

What is the first step in converting a decimal number to binary?

• Multiply by 2

• Subtract 1

• Divide by 2

• Add 1

How do you convert a binary number to octal?

• Convert each digit to decimal

• Group binary digits into sets of four

• Group binary digits into sets of three

• Group binary digits into sets of two

How do you convert a hexadecimal number to binary?

• Convert each digit to its 8-bit binary equivalent

• Convert each digit to its 4-bit binary equivalent

• Convert each digit to its decimal equivalent

• Convert each digit to its 2-bit binary equivalent

Which number system is primarily used in microcontrollers?

• Decimal

• Hexadecimal

• Octal

• Binary