Differentiate between constant and variable.

A constant is a value that remains unchanged throughout the execution of a program. Once assigned, its value cannot be modified, providing stability to the program. Constants are defined using keywords like const in C.

A variable, on the other hand, is a storage location in memory that can hold data, which can be modified during program execution. Variables are used to store and manipulate values that may change over time, such as user inputs or results of computations.

Related Questions:

  1. Define computer program.
  2. Differentiate between syntax and semantic.
  3. Write three differences between assembly language and HLLs.
  4. Write four characteristics of HLLs.
  5. Define Integrated Development Environment (IDE).
  6. Show memory hierarchy with the help of a diagram.
  7. Calculate the area of a rectangle for a given breadth and length
  8. Write an algorithm that inputs length in inches and calculates and prints it in centimeters.
  9. Write an algorithm to find the sum of the given sequence. SUM = 20 + 25 + 30 + 35 + 40 + 45 + 50 + 55 + 60
  10. Write an algorithm to find the product of the given numbers. PRODUCT = 1 × 3 × 5 × 7 × 9 × 11 × 13 × 15
  11. Write an algorithm to print the multiplication table of a number in reverse order.
  12. Convert the algorithms of questions 4 to 9 into flowcharts.
  13. What is the role of loops in programming?
  14. Differentiate between sequence, selection, and iteration in programming.
  15. Why is problem analysis important in programming?
  16. How does an algorithm help in efficient problem-solving?
  17. Explain the importance of using flowcharts before writing a program.
  18. Explain the differences between an algorithm and a flowchart with examples.
  19. Write an algorithm to check whether a given number is even or odd.
  20. Write an algorithm to find the greatest number among three given numbers.