modem networking device

Modem. In simple language, a Modem is the device that is used to connect with the Internet. Modem. Modems gradually became familiar to consumers in the late 1970s through the 1980s as public message boards and news services like CompuServe were built on early internet infrastructure. A modem modulates one or more carrier wave signals to encode digital information for transmission, and demodulates signals to decode the transmitted information. The data is transferred in terms of packets on a computer network. For transmission over an analog telephone line—which was once the most popular way to access the internet—the modem converts data between analog and digital formats in real time for two-way network communication. A Modem is somewhat a more interesting network device in our daily life. A modem converts data to a signal so it can be easily sent and received over a phone line, cable, or satellite connection. Let us explore some of these devices in greater detail. Different layers of a computer network are like different zones of a computer network with specified works, also called as 'network protocols'.Network Hub is a networking device which is used to connect multiple network hosts. So when a host sends a data packet to a network hub, the hub copies the data packet to all of its ports connected to. Some devices are installed on the device, like NIC card or RJ45 connector, whereas some are part of the network, like router, switch, etc. In other terms, you can think of repeater as a device which receives a signal and retransmits it at a higher level or higher power so that the signal can cover longer distances.For example, inside a college campus, the hostels might be far away from the main college where the ISP line comes in. Network devices may be inter-network or intra-network. Many broadband internet providers supply suitable modem hardware to their customers at no charge or for a monthly fee. Router is mainly a Network Layer device. Routers – A router is a device like a switch that routes data packets based on their IP addresses. © 2020 Fossbytes Media Pvt Ltd. All Rights Reserved.

Modem: A modem is a network device that both modulates and demodulates analog carrier signals (called sine waves) for encoding and decoding digital information for processing. Router is mainly a Network Layer device. Modern dial-up network modems transmit data at a maximum rate of 56,000 bits per second. In the case of the high-speed digital modems popular today, the signal is much simpler and doesn't require the analog-to-digital conversion. Technically, it is the device that enables the digital data to be transmitted over the telecommunication lines. Like this, all the ports know about the data and the port for whom the packet is intended, claims the packet.However, because of its working mechanism, a hub is not so secure and safe. Then, with the explosion of the World Wide Web in the mid and late 1990s, dial-up modems emerged as the primary form of internet access in many households around the world. If the college authority wants to pull a wire in between the hostels and main campus, they will have to use repeaters if the distance is much because different types of cables have limitations in terms of the distances they can carry the data for.When these network devices take a particular configurational shape on a network, their configuration gets a particular name and the whole formation is called Did you find this article helpful? You can think of two different labs or two different floors connected by a bridge.A repeater is an electronic device that amplifies the signal it receives. A modem is a hardware networking device that converts data to a signal so it can be easily sent and received over a phone line, cable, or satellite connection. This wire is used to carry our internet data outside to the internet world.However, our computer generates binary data or digital data in forms of 1s and 0s and on the other hand, a wire carries an analog signal and that's where a modem comes in.A router is a network device which is responsible for routing traffic from one to another network. A modem – a portmanteau of "modulator-demodulator" – is a hardware device that converts data from a digital format, intended for communication directly between devices with specialized wiring, into one suitable for a transmission medium such as telephone lines or radio.

A network hub is also used to do data transfer. Lifewire uses cookies to provide you with a great user experience. A modem is a hardware networking device that converts data to a signal so it can be easily sent and received over a phone line, cable, or satellite connection. For this purpose, a switch also maintains a CAM (Content Addressable Memory) table and has its own system configuration and memory. Modems accomplish both of these tasks simultaneously and, for this reason, the term modem is a combination of "modulate" and "demodulate."

Before we talk more about the networking devices, here are a few topics you might want to take a look at that we covered under network topology section:If we take a look at the different devices, they work at different layers of the computer networks. While hub just does the work of data forwarding, a switch does 'filter and forwarding' which is a more intelligent way of dealing with the data packets.So, when a packet is received at one of the interfaces of the switch, it filters the packet and sends only to the interface of the intended receiver. You can think of a router as a traffic police who directs different network traffic to different directions.If a router connects two different types of networks, then a bridge connects two subnetworks as a part of the same network. Give your feedback in the comments section below. The first devices called modems converted digital data for transmission over analog telephone lines. Here is the common network device list: Hub; Switch; Router; Bridge; Gateway; Modem; Repeater; Access Point An MIT graduate who brings years of technical experience to articles on SEO, computers, and wireless networking.

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