1. Flow Chart

2. Flow Chart
A flow chart is a graphical representation a logic sequence.
Flowchart is a diagrammatic representation of an algorithm
Flowcharts use simple geometric symbols and arrows to define relationships.
The flow chart symbols are linked together with arrows showing the process flow direction.

3. Flow Chart
In programming, the beginning or end of a program is represented by an oval.  
A process is represented by a rectangle.
A decision is represented by a diamond
I/O process is represented by a parallelogram.

4. Flow Chart
Symbols Used in Flow chart

5. Flow Chart
A flow chart for addition of 2 nos

6. Flow Chart
flowchart to find the largest among three numbers