Communication Media & Devices

Wireless network: A wireless does not use cables. It uses infrared or microwave radio signals to transmit and receive data. Wireless network are used where cables are inconvenient, for eg. If the network is created among building separated by streets. They are usually more expensive than cable-linked network. Cellular network: Some cellular phones are use […]

Efficient data communication

Efficient data communication must be Accurate Timely Cost effective Data communication allows users to transmit and receive data and information. The term media is the collection name for material s(tape, paper, disk) used to hold or transmit data. Communication media refers to the material used to transmit data and includes cables, fibre-opitc cable, radio waves […]

Communication Media & Devices

TOPIC:  COMMUNICATION DEVICES AND MEDIA OBJECTIVE:         Distinguish between communication devices and communication media. A communication device- is a physical part that enables one computer to communicate with another. The modem-is a communication device. Communication media– are the links via which the signals are transmitted. Communication media include cables, telephone lines and electromagnetic waves such as […]