Draw the graphical symbols of AND, OR, NOT, NAND, and NOR gates and write their functions.

  • AND Gate: Symbol is a flat-ended shape with two inputs and one output. Function: The output is 1 only if both inputs are 1. (A AND B = 1 if A = 1 and B = 1)

  • OR Gate: Symbol is a curved shape with two inputs and one output. Function: The output is 1 if at least one input is 1. (A OR B = 1 if A = 1 or B = 1)

  • NOT Gate: Symbol is a triangle with a small circle (representing negation) at the output. Function: The output is the inverse of the input. (NOT A = 1 if A = 0)

  • NAND Gate: Symbol is an AND gate symbol with a small circle at the output. Function: The output is 1 unless both inputs are 1. (A NAND B = 1 unless A = 1 and B = 1)

  • NOR Gate: Symbol is an OR gate symbol with a small circle at the output. Function: The output is 1 only when both inputs are 0. (A NOR B = 1 if A = 0 and B = 0)

Related Questions:

  1. Explain how NAND and NOR gates can be created using AND, OR, and NOT gates.
  2. Draw truth tables of the following Boolean functions.
  3. Simplify the Boolean functions of Question 5 using Karnaugh map.
  4. Draw the logic circuits of the following Boolean functions.
  5. What is a logic gate?
  6. Define truth table.
  7. Define Boolean function.
  8. What is Karnaugh map and why is it used?
  9. Draw three-variable Karnaugh map for variables X, Y, and Z.
  10. What will be the output of the following program?
  11. Write the syntax of an if-else statement in C.
  12. Why do we use the return 0 statement in the main function of a C program?
  13. Write a program to check whether a given number is even or odd using the modulus operator.
  14. Explain different types of format specifiers used in C with examples.
  15. Write a program that takes input from the user for marks of five subjects, calculates the percentage, and prints the grade based on the following criteria: 90% and above: A+ 80%-89%: A 70%-79%: B 60%-69%: C Below 60%: Fail
  16. Differentiate between if and if-else selection structures.
  17. Differentiate between else-if and switch selection structures. 
  18. What is a nested selection structure?
  19. Write the following statement using the if-else statement.
  20. Write the following statement using the conditional operator.