Differences between the router and the switch.
Differences between the router and the switch. • The switch communicates between devices of only one network, while the router can connect multiple networks
What is a router?
What is a router? • This device is designed to connect multiple networks of different architectures. This means that the router is able to connect your personal home network to the Internet
Z-Wave technology.
Z-Wave technology. • Z-Wave is a wireless communication method that uses low—power radio waves that are safe for health. Installing a smart home powered by Z-Wave technology is extremely simple: there is no need to lay cables and wires, repair and interfere with the interior. The signal is perfectly transmitted through walls, floors and furniture.
What is a switchboard?
What is a switchboard? • A switch is a device that connects several nodes of the same computer network. Such nodes can be both computers themselves and other devices: printers, servers, and so on.
ZigBee technology.
ZigBee technology. • ZigBee is a technology for building wireless data transmission networks. The ZigBee network operates in the license-free 2.4GHz band and is focused on transmitting small amounts of information from a variety of sources, including battery-powered ones.
Packet switching
Packet switching • Packet switching is a special way of switching network nodes, which was specially created for the best transmission of computer traffic
What is switching?
What is switching? • In telephone networks, subscribers' communication with each other is carried out by switching communication channels.
Serial and parallel transmission
Serial and parallel transmission Data transmission over the communication line can be arranged sequentially or in parallel.
Types of Client-Server architecture
Types of Client-Server architecture • Single-level In it, all application programs are distributed across workstations that access a database server or a file server. At the same time, the server does not execute application programs, only provides data.
Client-Server Architecture
Client-Server Architecture • In this architecture, several client computers send requests and receive services from the server.
What is a peer-to-peer network?
What is a peer-to-peer network? • In a peer-to-peer network, all computers are equal: there is no hierarchy among computers and there is no dedicated server. As a rule, each computer functions both as a client and as a server; in other words, there is no separate computer responsible for the administration of the entire network. All users independently decide what can be made publicly available
How to establish a connection with a specific node in the network.
How to establish a connection with a specific node in the network. • Each node in a computer network has a unique identifier. This ID (IP address) is used to establish a connection to it from other computers.
What is a network node?
What is a network node? • A node is a part of a computer network or a device connected to other participants (nodes) of this network. It can be either a computer or a special switch, router or hub.
How is the distribution of IP addresses on the Internet arranged?
How is the distribution of IP addresses on the Internet arranged? • As you already know, all IP addresses on the Internet must be unique. Therefore, we need some kind of organization that will control the distribution of IP addresses.
The Gopher protocol.
The Gopher protocol. • Gopher is a protocol for distributed search and transfer of application—level documents, which was widely distributed on the Internet until 1993. The protocol is intended to provide access to documents on the Internet, but has fewer features than HTTP, and was subsequently almost completely superseded by it.
