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  Computer Based Information System

Introduction to Computer Based Information System

Information is one main resource factor that is  available  to the manager. As the  business market is  becoming  more complex nowadays  and also the computer has improved its  capabilities, the  information should be managed properly.

Initially, the first major computer application was the processing of accounting data. After sometime , the  four system  also included this  computer application, they were management information system , decision support system, the  virtual  office and knowledge based system. All of these application composed the computer based information  systems.

Fig1.17 shows  the model of the CBIS, which  mentions how the CBIS subsystems are used in problem  solving. It describes  that all  five system  collectively make  the complete CBIS. It  provides the sufficient information, when the decisions  are made to solve the problem.

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1. Accounting information system: Accounting information system performs the firm accounting application. It is a data oriented application, so it should produce some information. A firm data processing  tasks  are performed  by it that  collects   data describing  the firm  activities  converts the data into  information  and makes the  information available  to users both  inside  and outside the firm.

Advantages

Adheres to relatively standardized methods.

Handles detailed data

Has a good historical focus.

2. Management Information System:  system management information is a combination of the various information systems. It makes information available with similar needs to the user needs. An MIS deals with the information that can be collected regularly and systematically according to the predefined rules. To do the tasks, such systems should operate in the real time, so they can process the information as early as received.

Advantages

It can handle inquiries and towards result oriented.

 It is suitable for analysis.

It helps to build the decisions and for the basis of management activities like planning controlling etc.

3. Decision support system: Decision support system enhances the capabilities of MIS. The origin of the terms. Decision forces on the  decision  making  in problem  solving  support requires computer aided decisions with enough  structure and system integrate all the  subsystems and suggesting  a combined man  machine  and decision  environment.

Advantage

Better decisions are taken.

Only one manager is required

It saves the cost and time.

4. Virtual Office :  In virtual office  the  office work  can be done  virtually at any  geographical area as long  as the work site is linked  to one  or more  of the  firms fixed areas by some type of electronic communication  capability.

 Advantage

Reduced equipment and facility cost.

Formal communication work.

Social contribution.

Reduced work stoppages.

5. Knowledge Based   System: the CBIS subsystem which is attracting the greatest attention from computer scientists and information specialists is knowledge based system a subset of artificial intelligence or AI.

A popular form of knowledge based system is the expert system. It is the activity of providing such machines as computer with the ability to display behaviour that would be regarded as intelligent of it were observed in humans.

Advantages

Improved output and expertise

Flexibility

Output is selected with the opinion of many experts.

Effective manipulation of large knowledge base.

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