Oct

Computer Networking Fundamentals

By IT-MAN

The sharing of fax machines, modems and printers between multiple computers and users to reduce operating costs. Online database of information is very important for the application, because the records and perform a variety of important information, and jobs. E-mail and conversations can be used to communicate directly and send files to the computer network.
Computer networks are classified, depending on size, such as local area networks (LAN), Wide Area Networks (WAN), Metropolitan Area Networks (MAN) and Personal Area Networks (PAN). Topology (topology is how the computer and network resources are connected) and network can be classified as line-Ring Network and Star Network.
Network hardware consists mainly of cables, network cards and hubs. Computer's network adapter is necessary so that a computer can not understand what the other is the computer "talks". Network card has a unique MAC address to identify computers on-line. Hubs connect all the computers on the network. Hubs can also connect to other hubs to increase across the network. Two computers can be connected to Ethernet cards or phone lines or power lines, communications, hardware kit available for the cost of about $ 100.
As the number of computers in the office or at home is growing, but also the number of network cables, so wireless is a viable solution. Radio transreceivers wireless network, or infrared signals are used for communication between computers and devices. Examples of wireless Wi-Fi and Bluetooth, but may have information security has a wireless network. However, there is certainly a stronger preference towards wireless networking nowadays among consumers.
Computer networks have added a new dimension to 21st century. Data networks in the world today is much faster and broader than that in the real world. All this is possible since the computer networks. Computer networks have revolutionized business, communication, travel, research, advocacy, social, and almost all human endeavors. The development of information networks has contributed to the technological revolution take a big leap forward.