MBA (General) - IV Semester, Information Technology and E-Business, Unit 1.1
Components of an Information System
An Information system model expresses a fundamental conceptual framework for the major components and activities of information systems.
Components of an Information
System
An Information system model expresses a fundamental conceptual
framework for the major components and activities of information systems.
An information system depends on the resources of people, hardware,
software, data, and networks to perform input, processing, output, storage, and
control activities that convert data resources into information products. The
information systems model outlined in the text emphasizes four major concepts
that can be applied to all types of information systems
People, hardware, software, data, and networks are the five basic
resources of information systems.
People resources include end users and IS specialists, hardware
resources consist of machines and media, software resources include both programs
and procedures, data resources can include data and knowledge bases, and
network resources include communications media and networks.
Data resources are transformed by information processing activities
into a variety of information products for end users.
Information processing consists of input, processing, output,
storage, and control activities.
IS Resources and Products - Hardware resources include machines and
media used in information processing. Software resources include computerized
instructions (programs) and instruction for people (procedures).
People resources include information systems specialists and users.
Data resources include alphanumeric, text, image, video, audio, and other forms
of data. Network
resources include communications media and network support.
Information products produced by an information system can take a variety of
forms, including paper reports, visual displays, multimedia documents,
electronic messages, graphics images, and audio responses.
