Principle objective of this lecture is to present on why do information systems need software? Application software tells the hardware how to do the input, storage, processing and output functions. System software makes the computer easy to use. An information system is a form of communication system in which data represent and are processed as a form of social memory. In a broad sense, the term is used to refer not only to the information and communication technology that an organization uses, but also to the way in which people interact with this technology in support of business processes.
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