HRM 3422 Chapter Notes - Chapter 16: Fundamental Representation, Computer Hardware, Embedded System
4 May 2018
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HRM 3422 Chapter 16 Notes – Summary
Introduction
• A computer-based information system is made up of a number of different elements.
• The data element.
• Data is the fundamental representation of facts and observations.
• Data is processed by a computer system to provide the information that is the very
reaso for the coputer’s existece.
• As you will see, data can take on a number of different forms.
• The hardware element.
• Computer hardware processes the data by executing instructions, storing data, and
moving data and information between the various input and output devices that make
the system and the information accessible to the users.
• The software element.
• Software consists of the system and application programs that define the instructions
that are executed by the hardware.
• The software determines the work to be performed and controls operation of the
system.
• The communication element.
• Modern computer information systems depend on the ability to share processing
operations and data among different computers and users, located both locally and
remotely.
• Data communication provides this capability.
• The combination of hardware, software, communication, and data make up the
architecture of a computer system.
• The architecture of computer systems is remarkably similar whether the system is a
PlayStation, a personal computer that sits on your lap while you work, an embedded
computer that controls the functions in your cell phone or in your car.
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