Sunday, June 8, 2008

information technology and communications

Information Technology (IT), as defined by the Information Technology Association of America (ITAA), is "the study, design, development, implementation, support or management of computer-based information systems, particularly software applications and computer hardware." IT deals with the use of electronic computers and computer software to convert, store, protect, process, transmit, and securely retrieve information.Today, the term information technology has ballooned to encompass many aspects of computing and technology, and the term is more recognizable than ever before. The information technology umbrella can be quite large, covering many fields. IT professionals perform a variety of duties that range from installing applications to designing complex computer networks and information databases. A few of the duties that IT professionals perform may include data management, networking, engineering computer hardware, database and software design, as well as the management and administration of entire systems. When computer and communications technologies are combined, the result is information technology, or "infotech". Information Technology (IT) is a general term that describes any technology that helps to produce, manipulate, store, communicate, and/or disseminate information. Presumably, when speaking of Information Technology (IT) as a whole, it is noted that the use of computers and information are associated.
Professional organizationsAITech-Assinform is an Italian association of information & communication technology companies and an affiliate of Confindustria.The Association for Computing Machinery (ACM) was founded in 1947 as the world's first scientific and educational computing society. [1] The Australian Computer Society (ACS) is an association for information & communications technology (ICT) professionals in Australia.The Australian Information Industry Association is the national organisation representing ICT companies in Australia. [2]The British Computer Society (BCS) is the largest UK-based professional body representing those working in IT. The Canadian Information Processing Society (CIPS) is the largest professional body for computing in Canada.The Computer Manufacturers, Distributors, and Dealers Association of the Philippines (COMDDAP) is an association of leading information technology businesses in the Philippines.The Computer Society of India (CSI) is the national body representing computer professionals in India.The Council of European Professional Informatics Societies (CEPIS) is a non-profit organisation that promotes high standards among informatics professionals across Europe. [3]The Information Technology Association of America (ITAA) is an industry trade group for most of the world's major ICT companies.The National Association of Software and Services Companies (NASSCOM) is an association of Indian IT companies.The Philippine Software Industry Association (PSIA) is an association of Philippine IT companies.
An Information System (BCIS)(IS) is the system of persons, data records and activities that process the data and information in a given organization, including manual processes or automated processes. Usually the term is used erroneously as a synonym for computer-based information systems, which is only the Information technologies component of an Information System. The computer-based information systems are the field of study for Information technologies (IT); however these should hardly be treated apart from the bigger Information System that they are always involved in.
The term information system has different meanings:In computer security, an information system is described by three objects (Aceituno, 2004):Structure:Repositories, which hold data permanent or temporarily, such as buffers, RAM, hard disks, cache, etc.Interfaces, which exchange information with the non-digital world, such as keyboards, speakers, scanners, printers, etc.Channels, which connect repositories, such as buses, cables, wireless links, etc. A Network is a set of logical or physical channels.Behavior:Services, which provide value to users or to other services via messages interchange.Messages, which carries a meaning to users or services.In geography and cartography, a geographic information system (GIS) is used to integrate, store, edit, analyze, share, and display georeferenced information. There are many applications of GIS, ranging from ecology and geology, to the social sciences.In knowledge representation, an information system consists of three components: human, technology, organization. In this view, information is defined in terms of the three levels of semiotics. Data which can be automatically processed by the application system corresponds to the syntax-level. In the context of an individual who interprets the data they become information, which correspond to the semantic-level. Information becomes knowledge when an individual knows (understands) and evaluates the information (e.g., for a specific task). This corresponds to the pragmatic-level. In mathematics in the area of domain theory, a Scott information system (after its inventor Dana Scott) is a mathematical 'structure' that provides an alternative representation of Scott domains and, as a special case, algebraic lattices.In mathematics rough set theory, an information system is an attribute-value system.In sociology information systems are also social systems whose behavior is heavily influenced by the goals, values and beliefs of individuals and groups, as well as the performance of the technology.[1]In systems theory, an information system is a system, automated or manual, that comprises people, machines, and/or methods organized to collect, process, transmit, and disseminate data that represent user information.In telecommunications, an information system is any telecommunications and/or computer related equipment or interconnected system or subsystems of equipment that is used in the acquisition, storage, manipulation, management, movement, control, display, switching, interchange, transmission, or reception of voice and/or data, and includes software, firmware, and hardware.[2]The most common[citation needed]. view of an information system is one of Input-Process-Output.

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