The Open System Interconnection (OSI) protocol suite is comprised of numerous standard protocols that are based on the OSI reference model. These protocols are part of an international program to develop data-networking protocols and other standards that facilitate multivendor...
The Open Systems Interconnection model (OSI model) is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system without regard to their underlying internal structure and technology.
Work on the OSI model began in the late 1970s, mostly as a reaction to the growing influence of big companies like IBM, NCR, Burroughs, Honeywell (and others) and their proprietary protocols and hardware. The idea behind it was to create an open standard that would provide interoperability...