Fundamental ideas behind the Computer Networks

The sharing of fax machines, printers, modems and among many computers and users reduce operating costs. A database on a computer network is a very important application as it stores and manages many important data and jobs. Emails and chats can be used for instantaneous communication and sending files to a computer network - read white papers to learn more about how this applies to 2010.
 
Computer networks are classified according to size, such as local area networks (LAN), Wide Area Networks (WAN), metropolitan area networks (MAN) and personal area networks (PAN). The topology (topology is the way computer networks and network resources are connected) of networking can be classified as a bus network, ring network and Star Network.
 
The networking hardware basically consists of wiring, network cards and a hub. computer network cards are needed for a computer can understand what the other computer is "talking". NICs have a unique MAC address to identify computers on a network. Hubs connect all computers on the network. Hubs can also be used to communicate with other hubs to increase the size of the computer network. Two computers can be connected using Ethernet cards or telephone lines or power lines for communication, with hardware kits available at roughly a cost of $ 100.
 
As the number of computers in an office or a home increases, so does the number of cables, wireless network is a viable solution. In wireless networks transreceivers radio signals or infrared are used to communicate between computers and peripherals. Examples of wireless networking include Wi-Fi and Bluetooth, but there may be security issues involved in wireless networks. However there is certainly a stronger preference towards wireless networking nowadays among consumers. And yet, the network adapters have a unique MAC address to identify computers on a network. Hubs connect all computers on the network. Hubs can also be used to communicate with other hubs to increase the size of the computer network.
 
Computer networks have added a new dimension in the 21st century. Today, the cyber-world is much faster and wider than the real world. All this was made possible through computer networks. Computer networks have revolutionized business, communication, travel, research, defense, society and almost all human activities. The evolution of computer networks has contributed to the technological revolution take a big leap forward. Just to touch briefly on the classification of computer networks: local area networks (LAN), Wide Area Networks (WAN), metropolitan area networks (MAN) and personal area networks (PAN).

Brief Overview of Network Transceivers

fiber optics transceiver

Are you planning to install a network transceiver for the internet connection in your system? Do you have the basic knowledge on how the network transceivers work? Here’s is a brief discussion on network transceivers which will guide you about its basic functionalities.

The term network is the modified name for transmitter-receiver, which are essentially the devices used for transmitting and receiving the analog and digital signals. Network transceivers are also used as the term, which is common for local-area network (LAN) connection and significantly detects digital signals coming to the network wire as well as transmitting the signals through the same network wire. In most of the modern LANs, the network transceivers are integrated into the network interface card (NIC), whereas, in many other networks, they function as external transmitter-receiver. Therefore, you need to check out what kind of transceivers will function for your network, and based on the criteria, you need to buy appropriate transceivers. In plain terms, a transmitter-receiver is an electronic device and this electronic device plays takes charge of global communication. The efficiency of transmitter –receiver depends on the how compatible it is over the network. Transceivers are known by other names also. For example, in case of Ether networks, transceiver is known for the Medium Access Unit (MAU). Likewise, in case of the radio communications, transmitter-receiver functions as a two way radio where a compatible combination occurs in the form or radio, transmitter and the receiver. Inside a radio unit, the transmitter –receiver exchanges information in half-duplex mode.

Network transceivers come in three configurations, namely chip, board, or module style. The size as well as the process of installation of all three transmitter-receivers is quite different. Chip style network transceiver is the smallest in size and a classic example of nano technology. Chip style network transceiver can be easily installed and removed from the network. Since these types of network are small in size, they are also very easy to handle. Board style transceivers are built or rather integrated directly into a network board or card. These types of transmitter-receiver form the part of motherboard and cannot be easily removed like the Chip style network. Module network transmitter-receivers are exclusively designed to work in the external networks and their installation and function is similar to the many other computer peripheral devices. There are many other designs of module type transmitter-receivers which ideally function as the stand-alone devices.

Transceivers are uniquely designed, and as the result of their uniqueness, they function within the circumference of specifically designed network protocols. The most common and advanced network protocols include AppleTalk®, CANbus, ControlNet, DeviceNet, Ethernet, Fibre Channel, FDDI, Fieldbus, Frame Relay, INTERBUS, PROFIBUS, and xDSL. It is important to know here that when you install the network on to the digital system, you should be aware about its compatibility with the other hardware characteristics. These network protocols are compatible with a particular genre of transmitter-receiver. Some of the quick run through specifications which you need to consider when buying transceivers includes compatibility with the peripherals, do they come with or without full duplex capabilities, different types of connection ports and many more. The full duplex ability of transceivers allows the transmission of data simultaneously to and fro in the network wire.

About The Author: Sachin Mishra is associated with MemoryTen. It is one of the most visited sites for network transceivers, computer memory. It was established in 1995 and specializes in memory upgrade for Apple memory, flash memory and other like batteries, Harddrive, network transceiver.