Wired and Wireless networks are very common in the workplace as well as in the home. The wired Computer Networks provide a secure and faster means of connectivity but the need of mobility i.e. anywhere, anytime and anyone access is tilting the network users towards wireless technology. Wireless technology has high mobility. Technology has been created to store, transmit and receive data through networks at very high rates of speed. Users can now store detailed information at a very low cost. It is believed that in the future, the speed of networks will increase as they have in past years. As well, the cost of networks will continue to decline and using a network will be essential for every organization. As computing technology increases in power, and decreases in size, the price of creating a high-powered full featured network will decrease rapidly.
Wired Networks: In computing terminology, the term "wired" is used to differentiate between wireless connections and those that involve cables. A wired setup uses physical cables to transfer data between different devices and computer systems. Most wired networks use Ethernet cables to transfer data between connected PCs. In a small wired network, a single router may be used to connect all the computers. Larger networks often involve multiple routers or switches that connect to each other. One of these devices typically connects to a cable modem, T1 line, or other type of Internet connection that provides Internet access to all devices connected to the network.
Wireless network: wireless network refers to the use of infrared or radio frequency signals to share information and resources between devices. Many types of wireless devices are available today; for example, mobile terminals, pocket size PCs, handheld PCs, laptops, cellular phone, wireless sensors, and satellite receivers, among others. The emerging third generation cellular networks have greatly improved data transmission speed, which enables a variety of higher speed mobile data services. Meanwhile, new standards for short range radio such as Bluetooth and infrared transmission are helping to create a wide range of new applications for enterprise and home networking.
Teleconferencing: • It is the simplest wired application for voice communication by using PSTN. • A telephone is used to conduct a conference between more than two people who are separated by a distance.
Videoconferencing: • Two or more people can have a face-to-face meeting when they are geographically separated. • Cameras, a computer, and videoconferencing software are used to conduct the conference.
Enterprise Network: An enterprise network is an enterprise's communications backbone that helps connect computers and related devices across departments and workgroup networks, facilitating insight and data accessibility. An enterprise network reduces communication protocols, facilitating system and device interoperability, as well as improved internal and external enterprise data management.
Home Network or Home Area Network (HAN) is a type of local area network that develops from the need to facilitate communication and interoperability among digital devices present inside or within the close vicinity of a home.
Wireless Sensor Network (WSN) Wireless sensor network (WSN) refers to a group of spatially dispersed and dedicated sensors for monitoring and recording the physical conditions of the environment and organizing the collected data at a central location.
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