COMPUTER TECHNOLOGY AND MULTIMEDIA

SUMMARY OF CHAPTER 4 (TELECOMMUNICATION – Communication & Network Concepts)

What are computer communication? It is a process in which two or more computers or devices transfer data, instructions, and information. The successful communication is needed to sending device, communication device, communication channel, communication device and receiving device. Some use of communication technology are Internet, Web, E – mail, Smart Television and video conferencing. Two types of communication are point – to – point and multipoint. As an example Smart Television could ve differentiate between interactive TV, Personalized TV and Internet TV. There are several types of networks such as Local Area Network (LAN), Home Area Network (HAN) and Personal Area Network (PAN), Wide Area Network (WAN) and Metropolitan Area Network (MAN). There are two type of networks structure which is client/server and peer to peer (P2P). Next, we have Intranet, Extranet and Virtual Private Network (VPN). Three commonly used network topologies is Bus Network, Ring Network and Star Network.