Mis Essay

6243 Words Apr 10th, 2013 25 Pages

Basically an Information System handles the flow and maintenance of information that supports a business or some other operation. It contains information about significant people, places and things within the organization or in the environment surrounding it. Information is derived from meaningful interpretation of data. Data consists of the raw facts representing events occurring in the organization before they are organized into an understandable and useful form for humans.

An Information System can be defined technically as a set of interrelated components that collect or retrieve, process, store and distribute information to support decision making and control in an organization. A system which
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4) Hardware sources Hardware consists of computer equipment used to perform input, processing, and output activities. Input devices include keyboards, automatic scanning devices, equipment that can read magnetic ink characters, and many other devices. Processing devices include the central processing unit and main memory. There are many output devices, including secondary storage devices, printers, and computer screens. Petronas Carigali Sdn. Bhd. uses the computer to key in data about their employee, customer and other information about their business. Also, all the processes in Petronas Carigali Sdn. Bhd. are being computerized as accounting, research and development, quality control, marketing and other. All the computerized process helps in the faster and better management of the organization. Hardware controls: Ensure that computer hardware is physical secure, and check for equipment malfunction. Organizations that are critically dependent on their computers also must make provisions for backup or continued operation to maintain constant service.

5) Network sources

Networks are used to connect computers and computer equipment in a building, around the country, or around the world to enable electronic communications. Network sources in the Petronas Carigali Sdn. Bhd. Kerteh

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