HRM 3450 Lecture Notes - Lecture 11: Computer Hardware
5 May 2018
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HRM 3450 Tutorial 11 Notes – The general concept of systems
Introduction
• Show the fundamental role of systems, particularly various types of IT systems, in
business.
• We offer examples of different types of IT systems, and show how IT systems work
together to accomplish tasks and solve problems.
• We show how systems can themselves be composed of subsystems, where the
subsystems also fit the definition of systems.
• After you have studied, you should have a clear understanding of what a system is what
kinds of systems are used in IT, the purpose and goals for each of these systems.
• How these systems fit together and interact with each other and with their
environment.
• You’ll uderstad the cocept of syste architecture.
• This discussion will set the stage for the remainder of the book, which considers
individually and collectively the specific computer-based systems and subsystems that
constitute the primary tools and components of business information technology.
• The most important characteristic that is shared by all of the systems mentioned above
• Indeed, by all systems, is that each is built up from a set of components that are linked
together to form what we think of as a single unit.
• The house plumbing system, for example, consists of sinks, faucets, toilets, a hot water
heater, bathtubs or showers, valves, and more, all connected together by pipes.
• An IT system consists of groups of computer hardware, various I/O devices, and
application and system software, connected together by networks.
• Often, the system is intended to serve a purpose or to produce results.
• The purpose of the house plumbing system is to allow the residents of the home access
to water to wash, bathe, and drink.
• The purpose of an IT system is to allow organizations to process, access, and share
information.
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