A legacy system is any outdated computing system, hardware or software that is still in use. Legacy systems include computer hardware, software applications, file formats and programming languages.

Systems theory was not originally a business theory. Indeed, systems theory was proposed in the 1940s by biologist Ludwig von Bertalanffy, say Francis Heylighen and Cliff Joslyn in their article, ...

The application layer is at Layer 7, the top of the Open Systems Interconnection (OSI) communications model. It ensures that an application can communicate with other applications on different ...

Why study Computer Information Systems? Computer information systems (CIS) professionals are the "communication bridge" between business needs and technology. This means that you must learn how to ...