Specialized information systems

Nội dung tài liệu giới thiệu về hệ thống thông tin, hệ thống doanh nghiệp, information and decision support systems, knowledge management and specialized information systems.

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A bit (binary digit) is the smallest unit of information • N = 2n where N is the number of representations and n is the number of bits (ex. ASCII, Unicode, PCM code etc.) • Data communications transfer information using codes that are transmitted as signals (either analog or digital) • In general, analog lines provide a slow service that contains high error rates.

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After completing this chapter you should be able to: Identify the basic concepts of an accounting information system, describe the nature and purpose of a subsidiary ledger, explain how companies use special journals in journalizing.

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The study focuses on the use of information systems in the Heavy Engineering industry in South Africa and the decision to make, buy or rent information systems. Special focus was placed on the factors that influence the decision to make, buy or rent information systems. It is undeniable that changes in the competitive environment, such as technological advances and globalisation, are driving organisations toward new ways of operating. In striving to become flexible, lean, and more competitive, organisations have been increasingly swift to externalise support service functions.

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EURASIP Journal on Applied Signal Processing 2003:10, 1016–1026 c 2003 Hindawi Publishing Corporation Model-Based Speech Signal Coding Using Optimized Temporal Decomposition for Storage and Broadcasting Applications Chandranath R. N. Athaudage ARC Special Research Center for Ultra-Broadband Information Networks (CUBIN), Department of Electrical and Electronic Engineering, The University of Melbourne, Victoria 3010, Australia Email: cath@ee.mu.oz.au Alan B. Bradley Institution of Engineers Australia, North Melbourne, Victoria 3051, Australia Email: abradley@ieaust.org.

11p sting12 10-03-2012 44 6   Download