Não conhecido declarações factuais Cerca de network
Não conhecido declarações factuais Cerca de network
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They differ in how data is sent over a communication medium, the frequency range they use, and their applications.Broadband systems use modulation techniques to reduce the effect of noise in the enviro
The dots represent the nodes in the various topologies, and the lines represent the communication links. Network topologies include the following types:
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.
A protocol is a set of rules or algorithms which define the way how two entities can communicate across the network and there exists a different protocol defined at each layer of the OSI model. A few such protocols are TCP, IP, UDP, ARP, DHCP, FTP, and so on.
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The various devices in your home are wirelessly connected to the router, which acts as a central node (server) for the household. The router itself is connected to a much larger network: the Net.
Computer networks are ideal for the quick exchange of information and the efficient use of resources.
The links can be configured in different ways, both physically and logically, and the network topology dictates the manner in which links and nodes relate to each other.
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.
FTP: Protocolo por transferência por arquivos de que permite o envio e recebimento de arquivos entre dispositivos.
Computer 男同网 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.
Before the advent of modern networks, communication between different computers and devices was very complicated. Computers were connected using a LAN cable.