Basic Information Technology Concepts

• Data-refers to a collection of organized information, usually the results of experience, observation or experiment, or a set of premises. This may consist of numbers, words, or images, particularly as measurements or observations of a set of variables.
• Database- computer database is a structured collection of records or data that is stored in a computer system. A database usually contains software so that a person or program can use it to answer queries or extract desired information.[1] The term "database" refers to the collection of related records, and the software should be referred to as the database management system (DBMS). Other terms for DBMS are database manager or database system. When the context is ambiguous, however, many database administrators and programmers use the term "database" to refer to both the data collection and the software that enables it to be accessed.
• Information-as a concept bears a diversity of meanings, from everyday usage to technical settings. Generally speaking, the concept of information is closely related to notions of constraint, communication, control, data, form, instruction, knowledge, meaning, mental stimulus, pattern, perception, and representation.
• Information science-is an interdisciplinary science primarily concerned with the collection, classification, manipulation, storage, retrieval and dissemination of information.Information science studies the application and usage of knowledge in organizations, and the interaction between people, organizations and information systems. It is often (mistakenly) considered a branch of computer science. It is actually a broad, interdisciplinary field, incorporating not only aspects of computer science, but also mathematics, library science, cognitive science, and the social sciences.
• Information technology-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 retrieve information, securely.