Modem What is it and how is it different from a Router?

The modem It is a device that has been used for many years to be able to carry out Internet connections to homes and businesses. It has the function of carrying data transmission to the different computer equipment that are connected to him which makes it essential to be able to have a network connection.

Today you can have a Internet connection it is something more than necessary, since there we can get practically everything what we are looking foreven power work online. Therefore, to be able to know and know what is a modem and what is its operation is essential today.

It is also important to know how to differentiate what is a modem and a routerdespite the fact that both teams work in a similar way, since both provide an internet signal, each of them performs different functions. This is how in this post we are going to teach you a little more About modems and their main difference from routers.

What is a modem and what is this device for in computing?

This type of device is a internet signal modulator and demodulatorthis is how he himself is capable of being able to convert what they are digital signals into analog but you can also convert a analog signal into a digital. In other words, this is a input and output device that allows different equipment to be connected to each other through a telephone line.

In this way these devices become a intermediary between what is telephone line and the user’s computerwhere thanks to him you can take the analog signals emitted by the telephone line and convert them into digital thanks to its demodulation, which allows the end user can access the Internet.

Basically what this type of device does is allow communication between computer and internet signal through telephone line network or as it is also known cable modem. In this case, the device takes care of receive all the information from the Internet provider through the cable modemwhen it receives the signal, converts it to digital to be able to transmit it to the computer.

In this case you can only transmit the network signal to one computer at a timesince it does not have the same router capacity to be able to make a multiple routing that allows connect two or more computers simultaneously.

How does a modem work and what is its role in a computer network? Main processes

The operation process of these devices is very simple, in order to understand this whole process it is necessary to understand that computers work through a digital signwhile telephone lines use an analog signal. Due to this, these types of devices had to be created that are capable of performing two types of processes one of them is the modulation allowing them convert digital signals to analog Y demodulation to convert analog signals to digital.

Therefore, the first step that this device performs is to receive the signal from the telephone line to turn it into a digital signal that I can be received and read by the computer. At the time of transmit this information it is important to be able to differentiate the two types of signsthat is, what is the carrier signal and what is the modulating signal.

In other words, these signs are nothing more than sine waves whose purpose is to be able transmit information from one point to another. Which have three parameters such as phase, amplitude and frequency.

This whole process is usually carried out in three phases which we show you below:

• In the first place, the information will be processed in order to introduce it into a modulator signal, This process is specifically performed by the modemwho is in charge of power prepare the information.
• After what information is processed and modulated it goes to emit the carrier signal which is going to be modified in some aspect by the modulating signal, that is to say, that it will have a unique characteristic that will allow it to be differentiated from the rest of the signs that exist in the transmission channel.
• After this, you can transmit the modulated dataso that they can be demodulated by the other end of the connection. This process is nothing more than taking the original modulating signal and convert it into a signal that can be picked up by the computer.

What are the differences between a modem and a WiFi router and which one is better?

Most people often confuse these two types of appliances, and on many occasions it is thought that the two fulfill the same function. However, the truth of all this is that both teams are different. In the case of modems are devices that make it possible the connection between the Internet company and your home, and which made it possible to carry out a network signal through a telephone line.

Secondly, the router is that device that handles connect the networks in your home to each other, for this take the internet signal that is transmitted by the modem Y distributes it and connects it with the rest of the devices near its location, either through cable or through a WiFi signal. The big difference between the two is that the modem is directly connected to the internet while the router is not.

Taking all this into account, here we show you what are the main differences between both devices:

Types of modems How are these devices classified and how does each one work?

Today there are different modem types, each one of them works in a different way from the rest, that is why here we are going to show you how These devices are classified and how each of them works, which we show you below:

analog

analog modems are the most traditional on the market and which are classified into internal and external depending on your location. The internal one is the one that is inside the computer while the external it is always close to it, whether it is located on a work table or on the same computer.

The main advantage of these devices is that they are small and easy to move and on the one hand they receive phone signal and on the other connects to computer for transmit network signal.

digital

These devices require a digital phone linethey are called ISDN which will guarantee its optimal functioning. These teams usually get speeds greater than 128 kbpsthus offering a greater connection than analog ones.

cable modem

The cable modems are a special type of modem that have the same characteristics as analog ones. But this time they take the signal not from the phone line but from the cable TV, Thus, modulates and demodulates the tv signal. These devices generally offer a higher speed and bandwidth, some of them are able to offer a wireless signal connection without the need to have a router connected to them.

PC Card

Finally, we find what is the PC Cardsthese devices are integrated into laptops or televisionsthey are installed inside the device as a card type which enables establish the network connection. Its main advantage is that does not require its own power supplysince they take the one from the same device.

What are the best modems to buy online and have multiple advantages?

be able to have one Internet connection today it is extremely important, since this is a tool that will help you get almost everything you need. For this you need to have a high quality modem that allows you to have a fast and stable connection at all times. Currently there are devices that they are modem and router at the same timethat is, they will also allow you establish a wireless connection.

Knowing the importance of this type of device, here we are going to teach you what are the best modems today what can you buy online and get excellent benefits.

Choose the model that most convinces you:

ADSL 2 + wireless modem router TP Link TD-W8960N

This is a modem router that will allow users to have a wireless access point with a 4-port routerit offers a wireless connection speed up to 300 Mbps, great for developing online games or heavy applicationsa way to carry out your different activities without any interruptions.

It also gives you a broadband connectivity option called Ethernet WAN and that allows you what is a cable connection, fiber modem or VDSL. Also having a network access for guests in the case of wireless connections.

Cisco DPC3010 Modem

DPC3010 it’s a cable modem highly sought after currently belonging to the company Cisco, he himself has 1 port, 10/100/100 Ethernet speed, and 8 x 4 channel links. It stands out for being a service provider of broadband capable of providing a very fast connection speedthis thanks to the 8 link channels it offers.

In the same way it offers speeds greater than 320 Mbps and upstream data speeds of up to 120 Mbps, being much faster than other devices belonging to this same brand.

SBG6580 – Motorola

Another of the models that you will find available today in most the websites, it offers you the possibility of having a wireless connection at home, thus offering services of data and media very innovative ultra broadband. This appliance has been designed to have a fluid mobility that can be easily located anywhere in the house.

This equipment offers 4 ports with an Ethernet speed of 10/100/100 with a advanced firewall switch and a 802.11n. This is how this device has become an excellent solution to be able to have a home network connectionallowing users to be able to create custom networks with an excellent connection speedcapable of share information and files in just seconds.

Modem Router AC1600 Archer VR600

AC1600 is a device that stands out mainly for offering a wifi signal high speed, exceeding speeds of 300 Mbps (2.4 GHz) and reaching speeds of 1300 Mbps (5GHz), therefore, it becomes an ideal device for those users who are constantly playing online, they watch programming in streaming, for which the torrent download isamong many other activities that require great speed.

In addition, it offers three antennas that undoubtedly improve coverageeach one of them is removable and helps signal coverage is optimal at all times. It also has DSL, USB and EWAN portsbeing fully compatible with DSL, fiber/cable and USB 3G/4G connections.

Archer VR200 AD750 Modem Router

AD750 has Ethernet WAN and USB portsalso offers what is a wireless signal at excellent speed able to improve the user experience greatly. This is how it has WiFi speeds of 300 Mbps reaching up to 433 Mbps, which provides an amazing experience. In the same way, this apparatus is compatible with VDSL2/ADSL2+/ADSL2/ADSL standards, as well as with 3G/4G USB adapters and fiber/cable accesses.

Like the model mentioned above, it has three detachable antennas that improve without a doubt your coverageavoiding problems in the signal pickup. It also has a technology beamforming that improve wireless coverage to a large degree.

What is modulation in a modem and what types are there?

modulation in the modems is a native process of these devices and which is what allows to convert digital signals into analog signals. And it is considered as the reverse process of what is demodulationwhere the The phones analog signal is converted into a digital signal.

However, all this does not end here, and it is that There are different types of modulation. as the case may be, so far known three types which we explain below:

amplitude modulation

this first modulation type is responsible for changing what is the pattern of wave amplitude being transmittedit is also known as amplitude modulation (ASK or AM). Basically this is a process equal to the one carried out in the radio stations.

frequency modulation

East modulation type takes care of modify what is the frequency of the transmitted wave, that way you can modify what its period is at different frequencies. All of this is also known as modulated frequency and is called FSK or FM.

phased modulation

Finally, we find this third type which is responsible for modify what is the phase of transmitted waveall this is called PM or PSK.