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Advantages and Disadvantages of Wired and Wireless Networks
The evolution of technology has led to the development of various networking systems. These systems connect devices together for efficient communication and sharing of resources. Wired and wireless networks are two of the most popular types of networks available today. Both types of networks have their own advantages and disadvantages.
Optical fiber is a type of dielectric (insulating) material, such as glass or plastic, capable of transporting light. High-speed data can be transmitted through optical fibers by total internal reflection of light. The biggest feature of optical fiber is that it transmits light signals instead of electrical signals. Currently available optical fibers have a data transmission rate of 100 Mbps to 2 gbps.
Asynchronous data transmission is one of the three methods of data transmission. In asynchronous data transmission, sender or source system sends one character of whole data at once to the receiver or destination system.
Data transmission speed is the rate of transferring data from source to destination. It is also referred as Bandwidth. Unit of bandwidth is Bit Per Second or bps. This is also called Band speed, which is the number of bits transmitted in a second is bps or Bandwidth. There are 3 types of Bands which are as follows
A network system enables data communication between 2 or more devices. Communication links or channels connects these devices. There can 2 types of connection possible; point-to-point and multipoint connection. Both of these connections has their advantages and disadvantages and use cases.
Data communications are the exchange of data between two devices using one or multiple forms of transmission medium using one of the three transmission modes. That is, data communication is movement of data from one device or end-point to another device or end point through electrical or optical medium. Systems that facilitates this movement of data between devices or end-points are called data communication network. There are 5 components of a data communication network. The devices which are in need to be a part of a data communication network made up of computer hardware and software.
I encourage you study the book Data Communications and Networking with TCP IP Protocol Suite 6th Edition by Behrouz A Forouzan