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Information is an abstract concept that refers to something that has the power to inform. Learn about the definition, theory, and applications of information in various fields, such as communication, computer science, and biology.
Information science is an interdisciplinary field that studies the properties, behavior, and usage of information in various contexts and systems. It covers topics such as information retrieval, management, classification, ontology, philosophy, and informatics, and has applications in diverse domains such as computer science, library science, healthcare, and intelligence.
Information access is the freedom or ability to identify, obtain and make use of database or information effectively. It covers various issues such as copyright, open access, privacy, and security, and involves technologies such as information retrieval, text mining, and machine translation.
Information theory is the mathematical study of the quantification, storage, and communication of information. It was established by Claude Shannon in the 1940s and has applications in various fields, such as coding, cryptography, neurobiology, and physics.
Information technology (IT) is a set of related fields that encompass computer systems, software, programming languages, and data and information processing, and storage. IT forms part of information and communications technology (ICT) and has a history of development from ancient devices to modern computers.
Quantum information is the information of the state of a quantum system, which can be manipulated using quantum information processing techniques. Learn about the history and development of quantum information theory, from quantum mechanics to quantum computing, communication, cryptography and more.
An information system is a system that collects, processes, stores, and distributes information using hardware, software, data, procedures, and people. Learn about the different types of information systems, such as transaction processing, decision support, and knowledge management, and their roles and functions.
The philosophy of information (PI) is a branch of philosophy that studies topics relevant to information processing, representational system and consciousness, cognitive science, computer science, information science and information technology.