Edexcel IGCSE Computer Science Unit 1: Algorithm Chapter 1:

1. Algorithm-1
MD. MASUM BILLA
COMPUTER SCIENCE AND ICT TEACHER
SOUTH BREEZE SCHOOL, UTTARA, DHAKA

2. Content
Problem and Solution
Introduction to Algorithm
Characteristics
Way of express
Real life examples

3. Problem & Solution
A situation, question, or things
Causes difficulty, stress, or doubt
Raised to inspire thought
Dealing with difficult situation, question, or things

4. Algorithms
Solution to a Problem
 Sequence of Instruction
Logical Instruction
Language Independent

5. Characteristics of an Algorithm
Input
Unambiguous-exact meaning
Unique instruction
Reusable with same result
Result/Output should have

6. Way of Express
Written Descriptions
Drawing Flowcharts
Pseudocode
-Input firstNumber
-Input secondNumber
-Set total to firstNumber + secondNumber
-Send total to display

7. Real Life Examples

8. Vocabularies & Resources
Unambiguous
Sequence
Consistency
Flowcharts
Algorithms
Pseudocode
Textbook
Google