2ND QUARTER REVIEW 1

What is the primary purpose of number systems in digital electronics

• To represent alphabetic characters

• To store only whole numbers

• To express numerical data in a format suitable for computation

• To create graphical images

Which of the following is a commonly used number system in digital electronics?

• Roman numerals

• Binary

• Hexadecimal

• Both b) and c)

  
  

What is the base of the binary number system?

• 8

• 10

• 2

• 16

In the hexadecimal system, what is the digit that follows 9?

• A

• B

• C

• 10

Why is the octal number system used less frequently in modern digital electronics?

• It requires more digits to represent the same value compared to binary

• It is not compatible with binary operations
  

• It is harder to understand

• It is more expensive

  
  

What is the process of converting a binary number to a decimal number called?

• Binary subtraction

• Binary addition
  

• Binary conversion

• Binary shifting

Which number system is often used to represent memory addresses in computer systems?

• Binary

• Hexadecimal

• Octal

• Decimal

What is the result of converting the decimal number 25 to binary?

• 11001

• 10100

• 11101

• 10011

When converting a hexadecimal number to binary, how many binary digits represent one hexadecimal digit?

• 2

• 4

• 6

• 8

What is the primary advantage of using the hexadecimal system in comparison to binary?

• It is more compact
  

• It is easier to convert to decimal
  

• It is more compatible with human readability
  

• It requires less memory