Page 16 - Computer Class 06

8 Finiteness : If the instructions of an algorithm are executed, the algorithm

should terminate after finite number of step.

Merits of Algorithm

8 It facilitates testing of programs at developing stage.
8 It makes the program easy to read and understand.

8 It makes the program portable and efficient.

8 It displays easy steps of processing.
8 It simplifies the modification and updating of the existing program.

How to Write an Algorithm?

Algorithm should express the steps of the program in the manner they are processed.

Further, algorithm should provide steps that can be carried out by a computer to
produce desired result.

Steps for writing an algorithm are as follows.
1. Take necessary input from the user.

2. Process on the data, input from the user and produce the result.

3. Show the result.
Let’s follow some daily life examples to understand the algorithm concept.

Withdrawing Money from ATM.
Step 1 : Go to the nearby ATM.

Step 2 : Put the debit card in ATM machine.

Step 3 : Enter pin number.
Step 4 : Collect the cash.

Planting a Seed Brushing Teeth Properly

Step 1 : Take an empty pot. Step 1 : Squeeze some toothpaste onto

Step 2 : Fill the pot with soil. the brush.
Step 3 : Poke a hole in soil. Step 2 : Add a little water.

Step 4 : Put seed in the hole. Step 3 : Gently brush each side of every

Step 5 : Cover seed with soil. tooth.
Step 6 : Water the seed. Step 4 : Gently brush gums as well.

Step 7 : Put the pot in sunlight. Step 5 : Rinse your mouth with water.

Computer-6 16 Computer-1