2) Software
The collection of logical commands which helps to run hardware components is called software. It is a collection of code so it is intangible thing. It is very difficult for a common person to develop software so only those skilled persons and engineer can develop a debug free program. Some of the physical tools help to develop software. They are:
i) Algorithm
ii) Flowchart
iii) Decision table
i) Algorithm
The stepwise representation of a program is called algorithm. It is the process of explaining different stage that is required to perform a certain job in sequential order in a human language. It provides the different steps in sequential order to the beginner.
ii) Flowchart
The pictorial representation of a program is called flowchart. The process of converting the different steps of algorithm in a pictorial format by using a sequential order is called flowchart. There are large numbers of universally accepted symbols by the help of which we design a program. It is difficult to understand the symbols and process for a beginner but practicing of more and more makes easier to understand.
iii) Decision table
It is also a tool which helps to develop logical concepts to design software or program to the beginners. Large numbers of conditions and actions are provided on tabulated form. After analyzing them and by using different techniques, decision maker can make appropriate decision at right time. A decision table is formed by combining six different components. They are: condition stub, action stub, decision rules, conditions entries, action entries and name of the table.
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