Data Communications & Networking

7 Layers of OSI Model

This video explains the 7 layers of the OSI model of networking.

The TCP/IP Protocol

What is TCP / IP?  TCP – Transmission Control Protocol   IP – Internetwork Protocol   TCP/IP refers to a collection of protocols   The name TCP/IP is misleading because TCP and IP are only two of the many  protocols in this collection… Read More ›

Data Communications Protocols – Part 2

What is the OSI Reference Model? This is an important topic in all courses on computer science, information technology. This article discusses the OSI model of networking in detail, the role of each of the 7 layers, and the discussion on what is a protocol.

Data Communications Protocols – Part 1

The term ‘protocol’ is heard very frequently in data communications and networking. What does ‘protocol’ mean? This article explains the computer communication process, what is a protocol, layered protocols, advantages of layered protocols, and defines what is an open system.