Short for Information and Communications Technology, it is the study or business of developing and using technology to process information and aid communications.
Definition of ICT
http://www.uoregon.edu/~moursund/ICT-planning/craft-science.htm
Information and Communication Technology (ICT) includes the full range of computer hardware, computer software, and telecommunications facilities. Thus it includes computing devices ranging from inexpensive handheld calculators to multimillion dollar super computers. It includes the full range of display and projection devices used to view computer output. It includes the local area and wide area networks that allow computer systems and people to communicate with each other. It includes digital cameras, computer games, CDs, DVDs, cell telephones, telecommunication satellites, and fiber optics. It includes computerized instruments, computerized machinery, and computerized robots.
In brief summary, ICT is a huge, rapidly changing, and rapidly growing field.
Definition of IT
http://www.pcmag.com/encyclopedia_term/0,2542,t=IT&i=45491,00.asp
(Information Technology) Processing information by computer. IT is an umbrella term for the entire computer industry and its latest moniker, which took hold in the 1990s. It actually took 40 years before the industry settled on what to call itself. First it was "electronic data processing" (EDP), which was followed by "management information systems" (MIS) and then "information systems" (IS).
What about Communication?
Depending on whom you talk to, the term may embrace or exclude the telecommunications and networking industry. However, all information that is created and disseminated by computers is moved via networks and common carriers. Therefore, it would seem that information technology naturally embraces everything that delivers information to a user. See information system and enterprise networking.
Information Technology
http://encyclopedia2.thefreedictionary.com/Information+and+Communications+Technologies
Successful implementation of information technology (IT) is dependent upon being able to cope with the overall architecture of systems, their interfaces with humans and organizations, and their relationships with external environments. It is also critically dependent on the ability to successfully convert information into knowledge.
Information technology is concerned with improvements in a variety of human and organizational problem-solving endeavors through the design, development, and use of technologically based systems and processes that enhance the efficiency and effectiveness of information in a variety of strategic, tactical, and operational situations. Ideally, this is accomplished through critical attention to the information needs of humans in problem-solving tasks and in the provision of technological aids, including electronic communication and computer-based systems of hardware and software and associated processes. Information technology complements and enhances traditional engineering through emphasis on the information basis for engineering.
The knowledge and skills required in information technology come from the applied engineering sciences, especially information, computer, and systems engineering sciences, and from professional practice. Professional activities in information technology and in the acquisition of information technology systems range from requirements definition or specification, to conceptual and functional design and development of communication and computer-based systems for information support. They are concerned with such topics as architectural definition and evaluation. These activities include integration of new systems into functionally operational existing systems and maintenance of the result as user needs change over time. This human interaction with systems and processes, and the associated information processing activities, may take several diverse forms. See Reengineering, Systems architecture, Systems engineering
The hardware and software of computing and communications form the basic tools for information technology. These are implemented as information technology systems through use of systems engineering processes. While information technology and information systems engineering does indeed enable better designs of systems and existing organizations, it also enables the design of fundamentally new organizations and systems such as virtual corporations. Thus, efforts in this area include not only interactivity in working with clients to satisfy present needs but also awareness of future technological, organizational, and human concerns so as to support transition over time to new information technology-based services.
What are ICTs and what types of ICTs are commonly used in Education?
http://en.wikibooks.org/wiki/ICT_in_Education/Definition_of_Terms
In recent years there has been a groundswell of interest in how computers and the Internet can best be harnessed to improve the efficiency and effectiveness of education at all levels and in both formal and non-formal settings. But ICTs are more than just these technologies; older technologies such as the telephone, radio and television, although now given less attention, have a longer and richer history as instructional tools. For instance, radio and television have for over forty years been used for open and distance learning, although print remains the cheapest, most accessible and therefore most dominant delivery mechanism in both developed and developing countries.
The use of computers and the Internet is still in its infancy in developing countries, if these are used at all, due to limited infrastructure and the attendant high costs of access.
Moreover, different technologies are typically used in combination rather than as the sole delivery mechanism.
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