Information system does not require a computer Computerized is focus of class

Information system does not require a computer

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Information system does not require a computer Computerized is focus of class which do involve a computer Non-computerized systems will be called manual information systems o People are the most important component of any information system o Information processing cycle Input: collection of data and its conversion into a form that allows processing Processing: manipulation and transformation of data Storage: holding place for data so that it can be retrieved at a later time
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Svac 22 Output: transformation of processed data into a form that can be understood by its eventual user Control: enforcement of correct processing procedures o Information systems have six critical elements Data: raw facts, text, numbers, images, and the like that serve as the inputs for producing information Hardware: physical devices such as the processor, storage media, and peripheral devices Computer, storage devices, printers, keyboards, and communication devices Software: set of instructions that govern the operation of an information system Two types of software, systems and application People buy computers to run application software where as systems software is a “necessary evil” Communication media: set of devices and protocols (rules) that enable computers to communicate with each other Procedures: instructions for the proper use of the information system People: individuals who use the information system Use and interpret the output How information systems help us deal with information o Information systems let us gather large amounts of data quickly, easily, and reliably o Allow businesses to store and organize very large amounts of data o Perform their data manipulations quickly, accurately, and consistently o Let us retrieve and output information in a variety of forms, depending on what is useful to the user Charts and graphs for large amounts of data at a glance Printed reports are often better for showing detail o Business rule: a statement that defines or constrains an aspect of a business with the intent of controlling behaviors within the business o Southwest was the first airline to use barcodes How information systems facilitate organizational change o Process improvements Can help organizations improve both the efficiency and effectiveness of processes ATM (process made easier) Bring about improvements and control o Automation Processes that have been totally automated Shopping online, filling a gas tank o Control Enable organizational change by improving process controls Information system checks the status of the account before allowing the customer to pump any gas o Information flow Improve communication and information flow in organizations Workflow systems facilitate information flow throughout a work task The system manages the flow of information and controls the process Facilitate information sharing Common information systems
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Svac 23 o Personal applications: serve to help make individuals’ daily work more efficient and effective o
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