Components of Information system

By Dinesh BajracharyaNepalComponents of Information systemThe major components of Information system are:HardwareSoftwareDataPeopleComputer networkhardwareIt is computer system on which information system resides and runs.Computer system has following componentsInput devicesProcessing unitOutput devicesStorage devicesSoftwareInformation 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 tuningSecurity Software is required to keep computer system protected from external threats. DataData is required to produce information. Data is fed to computer using input devicesGenerally data is collected at the operational level of management.PeopleInformation system is developed for people, to facilitate people to perform their jobs effectively.People input data to information systemPeople take output produced by information systemPeople give requirements for information system developmentDifferent people have different information requirementsComputer NetworkComputer 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.