what is Algorithm? how to solve a problem by using algorithm.pptx

what is algorithm ?
how to make algorithm

1. TOPIC ALGORITHM

2. Computational Thinking Computational thinking means thinking or solving problems like a computer scientist. There are four key techniques to computational thinking: Decomposition Pattern Recognition Abstraction Algorithm

3. Computational Thinking Pattern recognition: Looking for similarities among and within problems. Abstraction: Focusing on the important information only, ignoring irrelevant detail.

4. Decomposition The process of breaking down a complex problem into smaller, simple and easy to manage parts. We do many tasks on a daily without even thinking about or decomposing them, such as getting ready to school, finishing school work Breaking the problem down into smaller parts means that each smaller problem can be examined in more detail.

5. What is Algorithm? An algorithm is a process or set of rules to be followed in calculations or other problem-solving operations, especially by a computer. It is a set of rules to obtain the expected output from the given input . An algorithm is simply a set of steps used to complete a specific task

6. Algorithm Around Us Algorithms are everywhere around us. We humans follow and perform daily tasks in the form of algorithms without knowing that they are algorithms. One of the most obvious examples of an algorithm is a recipe. It’s a finite list of instructions used to perform a task. Example: making tea, cross the road

7. Algorithm in Computer Science Algorithm are one of the four cornerstones of computational thinking. Algorithmic programming is all about writing a set of rules with a finite number of steps that instruct the computer how to perform a task. A computer program is essentially an algorithm that tells the computer what specific steps to execute, in what specific order, in order to carry out a specific task.

8. Algorithm in Computer Science An algorithm are written using a particular syntax, depending on the programming language being used.

9. Algorithm in Computer Science Find the product of two numbers. Find the number 1. Find the number 2. What is operator? Where to store the result?

10. Algorithm in Computer Science Find the product of two numbers. Enter number 1 Store number 1 in x Enter number 2 Store number 2 in y Multiply x & y Store result in z (z=x*y) Display number Note: now these instructions can be easily translated into computer program

11. What is Computer Program? In computer program, a sequence of instructions is given to computer to solve a specific problem. Computer programs consist of a series of instructions to tell a computer exactly what to do and how to do it. Programing: Programing is writing computer code to create a program, in order to solve a problem. Code: Code is the process of translating an algorithm into a programming language.

12. Algorithm in Computer Science Solve: 8+9*7+2(9-3 ) Write a computer program that ensures that everyone who is under 15 years of age will get discount.

13. Algorithm Algorithm: Find out how old the person is If the person is younger than 15 then say “You are eligible for a discount ticket” Otherwise, say “you are not eligible for a discount ticket”

14. Program Program in syntax based language: age = int (input(“How old are you”)) If age < 15: print(“You are eligible for discount”) e lse: print(“you are not eligible for discount”)

15. Write a program that can find the sum of three numbers and print the results

16. Write a program that can find the sum of three numbers and print the results

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