Components of Information system By Dinesh Bajracharya Nepal

�The major components of Information system are: �Hardware �Software �Data �People �Computer network

hardware �It is computer system on which information system resides and runs. �Computer system has following components �Input devices �Processing unit �Output devices �Storage devices

Software �Information system itself is software. �Computer can not operate without software known as operating system (system software). �Device drivers required to make additional hardware of computer like DVD ROM work. �Utility Software is required to keeping computer working properly. That is tuning �Security Software is required to keep computer system protected from external threats.

Data �Data is required to produce information. �Data is fed to computer using input devices �Generally data is collected at the operational level of management.

People � Information system is developed for people, to facilitate people to perform their jobs effectively. � People input data to information system � People take output produced by information system � People give requirements for information system development � Different people have different information requirements

Computer Network �Computer Network is collection of computers. �Computers of network can communicate with each other, share data/information with each other. �If data from remote location is required, computer network is the most effective mechanism. �Computers of the network can also be used to distribute processing of data at the same time.