iopbazar.blogg.se - Computer networks pdf notes in hindi

Personal area networks may be wired with computer buses such as USB A wireless personal area network (WPAN) can also be made possible with network technologies such as IrDA and Bluetooth.

PANs can be used for communication among the personal devices themselves or for connecting to a higher level network and the Internet. The reach of a PAN is typically a few meters. Personal Area Network (PAN) A personal area network (PAN) is a computer network used for communication among computer devices (including telephones and personal digital assistants) close to one person. Types of Network Below is a list of the most common types of computer networks. This type of network is useful for transferring information between two computers that are not normally connected to each other by a permanent network connection or for basic home networking applications. Internet is also a type of computer network which connects all the computers of the world having Internet facility on them.Ī Simple computer network may be constructed from two computers by adding a network adapter (Network Interface Controller ) to each computer and then connecting them together with a special cable called a crossover cable. A computer network may be described as the interconnection of two or more computers that may share files and folders, applications, or resources like printers, scanners, webcams etc.

What are wireless networks? Advantages and disadvantages of wireless networks.A computer network is multiple computers connected together using a telecommunication system for the purpose of communicating and sharing resources.

Point-to-point Topology and Point-to-multipoint Topology.

Network Topologies - Dual Ring Topology.

Advantages and disadvantages of full-mesh topology.

Network Topologies - Full-Mesh Topology.

Network Topologies - Partial-Mesh Topology.

Network Topologies - Mesh, Ring and Hybrid Topologies.

Difference between physical topology and logical topology.

Organizations which control Internet, Network Protocols and Standards.Difference between Proprietary and Standard Protocols.Internetworks, Internet, Intranet and Extranet.Logical Classification of Computer Networks - Centralized and Distributed Computer Network Models.Logical Classification of Computer Networks - Peer to Peer Networks and Client/Server Networks.Campus Area Networks (CAN) and Metropolitan Area Network (MAN).Local Area Networks (LAN) and Wide Area Networks (WAN).Client Operating Systems and Network Operating Systems (NOS).Different types devices used to create a computer network.Voice over IP (VoIP): Voice over Internet Protocol (IP) is a revolutionary change in telecommunication which allows to send telephone calls (voice data) using standard Internet Protocol (IP) rather than by traditional PSTN. Network gaming: A lot of network games are available, which allow multi-users to play from different locations. User communication: Networks allow users to communicate using e-mail, newsgroups, and video conferencing etc. Without computer networks, device sharing is not possible.Īpplication sharing: Applications can be shared over the network, and this allows to implement client/server applications Hardware sharing: Users can share devices such as printers, scanners, CD-ROM drives, hard drives etc. The following are the important uses and benefits of a computer network.įile sharing: Networking of computers helps the network users to share data files. Can you imagine a world now without emails, online newspapers, blogs, chat and the other services offered by the internet? Computer networks help users on the network to share the resources and in communication.