5 elementos essenciais para network
5 elementos essenciais para network
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In addition, many offices only have one printer or a few printers that are shared by everyone. Without a network, the IT department would have to connect every single computer to the printer, which is difficult to implement from a technical standpoint.
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Since the devices are connected to the router as clients, they are part of the network and can use the same resource as the server, namely the Net.
Bus Topology: In bus topology all devices are connected to a single central cable called a bus. Data is sent along this cable and all devices share the same connection. Simple and cheap to set up but if the main cable fails the whole network goes down.
The idea of RZ and the idea of L are combined in manchester encoding. Different encoding techniques are used in data c
Network addresses In addition, it is necessary to ensure that the transmitter and receiver can be correctly identified. Network addresses are used for this purpose. In computer networks, each computer typically has an IP address, similar to a telephone number, that uniquely identifies the computer.
Flexibility. Today's computer networks enable people to use flexible communication and resource-sharing methods based on their needs and preferences. For example, some people might use email or instant messaging to communicate, while others might prefer using an app such as WhatsApp.
Virtual private networks (VPNs). A VPN extends a private network over a public network to improve the privacy and security of a network connection.
Computer networks first developed in 1950 for military and defense purpose. At that time they are mainly used to send data through telephone lines and had limited use in business or science.
Transport layer. This layer ensures the stable, sequenced and error-free delivery of data packets. It achieves this by swapping acknowledgment of data reception and retransmitting lost or dropped packets. Typical protocols used 男同网 at the transport layer include TCP and User Datagram Protocol.