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Information technology (IT) is the use of any computers, storage, networking and other physical devices, infrastructure and processes to create, process, store, secure and exchange all forms of electronic data.Typically, IT is used in the context of enterprise operations as opposed to personal or entertainment technologies.

The commercial use of IT encompasses both computer technology and telephony.The term information technology was coined by the Harvard Business Review. In order to make a distinction between purpose-built machines designed to perform a limited scope of functions and general-purpose computing machines that could be programmed for various tasks. As the IT industry evolved from the mid-20th century, it encompassed transistors and integrated circuits — computing capability advanced while device cost and energy consumption fell lower, a cycle that continues today when new technologies emerge.

IT software and hardware

IT includes several layers of physical equipment (hardware), virtualization and management or automation tools, operating systems and applications (software) used to perform essential functions. User devices, peripherals and software such as laptops, smartphones or even recording equipment can be included in the IT domain.IT can also refer to the architectures, methodologies and regulations governing the use and storage of data.Business applications include databases like SQL Server, transnational systems such as real-time order entry, email servers like Exchange, Web servers like Apache and customer relationship management and enterprise resource planning systems. These applications execute programmed instructions to manipulate, consolidate, disperse or otherwise affect data for a business purpose.

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