Hello viewers, I am Mayank and welcome to my new video If you are doing BCA or MCA from EGNU MCS014 course code System Analysis and Designing which we call in short SAD I am telling you about the first block I am starting from the first unit of the first block So what are the basic concepts First is introduction and objective So let's start one by one There is nothing in introduction, it is simple Our system is based on input process output model. You can see it is based on the IPU model. What does it mean?
We give any input and then it is processed. After processing, it produces a result as we output. What was manual? The work that was manual, it was replaced by the computerized system. Why was it replaced?
Accuracy and speed are good in the computerized system. Now see, it's simple, the previous computer system and the previous system, all the developers they understood that the old system, the manual system, the file based system, the old system system, how it works. After understanding that, we developed the computerized system.
An objective person always asks, on which process does it work? It works on input process and output model. So, all the developers who are working on the input process and output model, They first understood how a system works, which approaches it works on, there are many methods, different approaches, different methods, first select them, gather data, then convert a manual system into a standard computerized system. So this is the basic concept, so we see, mainly the question steps are asked from this, and the main topic of this is, so you know a question basic, what is system? write the definition of it and declare its characteristics or its point so if you get this question what is system?
write it simple system is a greek word which means organized relationship among components in many components an organized relationship is defined as means to have a relationship what does it mean? this word means organized relationship among components many components are connected in an organized way ok you can see that any company is a system our railway system is also a system the online ticket we book is also a system it also works in an organized manner and all its components are connected to each other so simple after writing this point what you will write a system is an orderly grouping of interdependent components linked together according to a plan to achieve a specific goal It's a very simple definition. After writing this point, you will write this point. What is a system? You can see orderly grouping of interdependent components.
Interdependent means that the components that are connected to each other, that are dependent on each other, are linked together. the interdependent components are connected to each other why are they connected? to achieve any goal so this is a very simple definition if you are asking for a small 2-3 marks book then you can write this much definition Now a word came from system An information system Like the name is information system If he will ask what is information system An information system is the arrangement of people People's arrangement Ok Data, process, information, presentation and information technology that interact to support and improve day by day operation in business. What is most important in any business? information system what is information system people's arrangement suppose we are working in a company many people are working many people are working many people are working many people are working how they work information presentation information technology which technology they use that interact to support and improve day by day operation improve day by day operation It is a very simple definition.
Ignu's book is Tata McGraw-Hill's book. He has copied the whole definition of TMH. You can study from there too. But this is sufficient.
If you write this much then... Now let's come to the characteristics So the characteristics are 1,2,3,4,5 To remember this in simple O,I,3,C O,I,3 means 3 I's and C I am saying again O for organization,I for interaction I for 3 I's I for interaction,I for interdependence integration and third one C is Central Objective If you want to remember this then there is a simple way to remember O I3 C ok now let's see one by one what is organization from O organization is connected to O structure and order say take a both the simple a structure and order say it is the arrangement of component that helps to achieve objective yeah arrangement and lucky and make a Hindi movie yeah yeah I'm a cabal oh a component kayak component quick 30 cases arrange character a matlab key Rakti Q Rakti kcb goal coache eat carnegia take a cone organization do so have come Interaction is the same as name. Interaction interacts with different functions and components.
Third is interdependence. Interdependence is the same as name. Interdependence means that one component interacts with another component.
of system depend another component ticket to the size con a me oh I 3c ticket organization interaction interdependence integration integration come at look at it concerned with how it So a system is tied together. How is a system connected? How is it integrated?
How does a function integrate with another function? How is it connected? Integrate.
And the last one is central objective. This is very important. Central Objective is very common and simple.
There is a central objective of any work. There are many works and many systems working together. But the objective of all systems is the same. you can see that this company has many departments they are working on different technologies but their objective is to make the company profitable so there should be a central objective so simple characteristics So, if you are asked, you will write a simple definition of each line.
Organization, interaction, interdependence, integration and central objective. I am saying this again, O, I3 and C. So, what is a system?
System is an orderly grouping of interdependent components linked together. You will see it again. What is a system?
A group of interdependent components linked together. Why are they linked? Because they are interdependent. goal ko achieve karne ke liye.
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