Flow chart
“A flow chart is a graphical representation of the sequence of operation for the solution of a problem.” Flow chart is basically the plane to be follow at when the program is written is acts like a road map for a primmer. And guides him how to go from the starting point to the find point while writing a computer program.
Symbols of flow chart
Terminal: - terminal symbol is used indicate the starting(begin), stopping(end),. It is the first symbol and also the last symbol in the program logic.
Input & output symbol: - Input, output symbol is used to indicate the operation of an input/output device in the program. It there is program instruction to input data from disk or any other of input device. Then that step will be indicates in the flow chart within an input/output symbol. Similarly all output instruction whether it is output on a printer, magnetic, tape, magnetic disk, terminal screen or any output device in the flow chart with the input/output symbols.
Processing: - Processing symbol is used in flow chart to represent arithmetic instruction and data movement instruction.
Condition symbol: - If condition is satisfied then yes path to be. Otherwise no path to be taken.
Algorithm: - A sent of instruction which describes the steps to be follow it to carry out an activity is called an algorithm or procedures for solving a problem.
MEANING OF A FLOWCHART
A flowchart is a diagrammatic representation that illustrates the sequence of operations to be performed to get the solution of a problem. Flowcharts are generally drawn in the early stages of formulating computer solutions. Flowcharts facilitate communication between programmers and business people. These flowcharts play a vital role in the programming of a problem and are quite helpful in understanding the logic of complicated and lengthy problems. Once the flowchart is drawn, it becomes easy to write the program in any high level language. Often we see how flowcharts are helpful in explaining the program to others. Hence, it is correct to say that a flowchart is a must for the better documentation of a complex program.
GUIDELINES FOR DRAWING A FLOWCHART
Flowcharts are usually drawn using some standard symbols; however, some special symbols can also be developed when required. Some standard symbols, which are frequently required for flowcharting many computer programs are shown in Fig
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