OSI LAYER MODEL: Data Transfer From Student's Computer to Ulearn System Server Which is in the UTeM IT Center

What is OSI Model? Open Systems Interconnection (OSI) Model is a model which describe seven layers of communication over a network between computer systems. It was the first standard modal for network communications, adopted by all major computer and telecommunication companies in the early 1980s. The modern internet is now based on the simpler TCP/IP Model, not on OSI Model. However, the OSI Model is still widely used because it can help to visualize and communicate the operation of networks. It also helps in the isolation and troubleshooting of networking problems.