
explore the fundamentals of data communication and computer networks, detailing sender and receiver roles, media, messages, protocols, simplex to full‑duplex modes, and classifications: personal, local, metropolitan, and wide area networks.
Explains guided transmission media, focusing on coaxial and fiber optic cables, their physical design, signal types, bandwidth limits, interference, and common applications like Cable TV and LAN.
Learn about unguided transmission media—radio, microwave, and satellite—and how electromagnetic signals travel through free space at light speed, require line of sight, and support radio, broadcasting, navigation, and satellite communications.
Explore ring, star, and mesh topologies, including token-based data transfer in rings and centralized control in stars, plus the concept of hybrid topologies combining multiple layouts.
Explore how core networking devices—hub, switch, router, bridge, gateway, repeater, modem, and network interface card—connect and manage data across networks, including addressing, routing, and traffic control.
A group of two or ore computing devices connected via a form of communications technology.
For example- A business might use a computer network connected via cables or the Internet in order to gain access to a common server or to share programs, files and other information
Data communications (DC) is the process of using computing and communication technologies to transfer data from one place to another, and vice versa.
It enables the movement of electronic or digital data between two or more nodes, regardless of geographical location, technological medium or data contents.
Data communications refers to the transmission of this digital data between two or more computers and a computer network or data network is a telecommunications network that allows computers to exchange data.
Data communications are the exchange of data between two devices using one or multiple forms of transmission medium.
The devices are in need to be a part of a communication system made up of hardware and software
Course Objectives:
1. Understand Computer Network &identify benefits of Computer Networks.
2.Understand and describe Communication Media.
3.Compare different types of Topology & network devices.
By learning the course students will be able to:
1: Analyze the functioning of Data Communication & Computer Network.
2: Select relevant Transmission media & switching techniques as per need.
3: Configure various networking devices.