Perhaps no one will deny that modern life is practically unthinkable without a home Internet - the most elementary and familiar things, such as a weather forecast, transport schedule, TV program, news - all this should be at hand, always available. As well as entertainment content, email, instant messaging. We are all accustomed to the fast pace of life, used to being in touch with our friends, wherever they are, and it would be extremely unreasonable to give up all this while in our own home. Obviously, a connection to the world wide web is necessary. Now there are many options, a huge selection of providers providing Internet access, you can choose wireless, permanent connection via Ethernet, or broadband ADSL via telephone line... You can even remember a dial-up dial-up connection through the same telephone line, but this type of communication can already be put on a par with dinosaurs - it has died out, unable to compete with faster and more reliable options offered at quite affordable rates.

From the point of view of economy, simplicity and speed of connection, ADSL looks more attractive than other methods if you have a landline telephone - this method of connection does not require laying additional cables, does not add unnecessary waste of time for making calculations. The choice of tariffs for an ADSL connection is usually wider than for a connection via an Ethernet network or, moreover, still not very reliable and rather expensive wireless technologies. It would be natural for residents of the Moscow region to consider an offer from MGTS, the largest fixed-line operator, which has been proposing for several years now to supplement the possibilities of conventional telephony with a full-fledged Internet connection. Consider the current range of tariff plans, especially since the company recently updated it and offers a wide enough choice so that everyone can use the option that is optimal for their needs.

High speed tariff plans

The first and, perhaps, the most popular family of tariffs from MGTS - connection options with unlimited traffic that differ in the speed of the forward channel. Due to the peculiarities of ADSL technology, the channel is not symmetrical, that is, the transmission speed of incoming and outgoing data will be different. Home users, like most office connections, are characterized by a significant excess of incoming traffic over outgoing. In other words, you download more data than you transfer - by sending just a few words of text in the search query "download all songs of the Leningrad group" you expect to receive a multi-megabyte discography. We will not start a debate about how ethical it is to use content available on the Internet, everyone decides for himself, in any case, statistics show that they download much more than they give, even active users of file-sharing networks. So, what options does MGTS have to offer? Let's look at the table.

* - connection at this price is carried out until January 31, 2011. Subsequently, the cost will be 150 rubles per month.

We see that at a very moderate cost, expressed by "beautiful" numbers from 99r to 490r per month, you can get the speed of incoming traffic from 1024 kbps to 6144 kbps. From one to six megabits - is it a lot or a little, and which of the options should you choose? It all depends on how heavily you use your internet connection and what exactly you plan to get from the World Wide Web. For surfing the web and viewing even "heavy" sites with flash animation and soundtrack, it will be quite enough and minimum speed 1 Mbps (1024 kbps), you can use mail, ICQ and other instant messaging systems, blog and sometimes exchange multimedia files, talk on Skype and receive updates of programs installed on your computer without any problems. True, the files will not download too quickly, for example, a 700-megabyte video file can be downloaded in an hour and a half. If this happens infrequently, and you are in no hurry, then the tariff plan "1 Mbit / s" with a cost of 99r ​​per month is your option. If you want to receive content 2, 3 or 4 times faster, then you should pay attention to the tariffs "3 Mbps", "6 Mbps" or "10 Mbps", respectively. Data transfer in the opposite direction, that is, from your computer to the Internet, to other users, in all cases occurs at a speed of 768 kbps, that is, slower, but still quite fast. This parameter is important only for video communication and for sharing files in file-sharing networks, and in both cases the speed of 768 kbps is acceptable.

Fans of online games, perhaps, should also think about high-speed tariff plans "15 Mbps" and "20 Mbps", since peak loads during critical gaming moments may require more than one or two megabits per second, and "braking" your favorite game spoils the mood to a much greater extent than spending an additional 200 rubles a month.

However, truly economical users can make the best choice in stages, because nothing prevents them from connecting at the minimum tariff, and then, in case of a noticeable lack of speed, switch to a faster option.

Another important point that makes this family of MGTS tariff plans the most attractive for residents of the megalopolis - upon connection, an ADSL modem with support for Wi-Fi wireless technology is provided (at all tariffs except 1Mbit / s, where the modem does not have Wi-Fi support) and with Ethernet connection. The modem does not need to be paid additionally, it is an attachment to the tariff plan. Now MGTS offers two models: ZTE ZXV10 W300 and D-Link DSL-2640U, Huawei HG 530 modems will appear a bit later. All models have Ethernet ports and support Wi-Fi and are delivered ready-to-use, that is, user configuration is not required. As a last resort, it will be made by the fitter upon connection.

The ZTE ZXV10 W300 modem has a white case and supports the FON network.

As a reminder, FON is a worldwide hotspot network designed to provide users with Wi-Fi access to the Internet. If you want to become a member of this, of course, an interesting initiative, then with the help of ZTE ZXV10 W300 it is easy to do it.

The second option is the D-Link DSL-2640U modem, the most significant difference for the user is the black color of the case.

FON support is not declared as an advantage of this model, but it is fully compatible with STREAM-TV digital television, so you can order a package of channels to your taste and use a modem to watch TV with high image and sound quality.

Daily rates

For many not too active users, the Internet is not necessary every day - these happy people check their email once a week, at the same time they look at new online photo albums of friends, download the text of a new book for their handheld and spend the rest of the time in healthier activities than sitting at a computer. Especially for them, as well as for users who are constantly on the road, MGTS offers a line of "Light" tariffs, a list with characteristics in the table:

As you can see, the monthly payment is minimal and is 20 rubles for all tariffs. The choice of available speeds here is somewhat different, from 512 kbps to 3072 kbps, and the cost is determined by the number of days during which Internet access was used. It should be borne in mind that in order to avoid annoying misunderstandings, you should turn off the modem for periods of non-use, otherwise an attempt by an unlucky hacker who scans all IP addresses in a row may lead to the fact that these days will be taken into account when invoicing. It also makes sense to reasonably assess the mode of using Internet access: if you use this access at least 10 days a month, then it is wiser to choose one of the basic tariffs with a permanent connection, then you do not need to turn off the modem. By default, "Light" tariffs from MGTS do not include the provision of a modem, you need to use your own, or rent a modem with an Ethernet connection from the provider for 11 rubles per month.

conclusions

Generally speaking, all other things being equal, using an Internet connection from MGTS has a number of advantages. Firstly, it is, of course, the simplicity and speed of installation - who, if not MGTS, has the ability to quickly check the status of the line and connect to the Network on its side. Secondly, the offered choice of modems covers the needs of the overwhelming majority of users, and the very fact of having a choice is pleasant. Thirdly, using the MGTS Internet connection, you pay for it together with the telephone service fee, according to one single MGTS receipt. Finally, fourthly, the payment is extremely low.

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1 kibibit / second = 0.0009765625 mebibit / second

From:

To:

bit / second byte / second kilobit / second (SI def.) kilobyte / second (SI def.) kibibit / second kibibyte / second megabit / second (SI def.) megabyte / second (SI def.) mebibit / second mebibyte / second gigabit / second (SI def.) gigabyte / second (SI def.) gibibit / second gibibyte / second terabit / second (SI def.) terabyte / second (SI def.) tebibit / second tebibyte / second ethernet ethernet (fast) ethernet (gigabit) OC1 OC3 OC12 OC24 OC48 OC192 OC768 ISDN (single channel) ISDN (dual channel) modem (110) modem (300) modem (1200) modem (2400) modem (9600) modem (14.4k) modem (28.8k) modem (33.6k) modem (56k) SCSI (Async) SCSI (Sync) SCSI (Fast) SCSI (Fast Ultra) SCSI (Fast Wide) SCSI (Fast Ultra Wide) SCSI (Ultra-2) SCSI (Ultra-3) SCSI (LVD Ultra80) SCSI (LVD Ultra160) IDE (PIO mode 0) IDE (PIO mode 1) IDE (PIO mode 2) IDE (PIO mode 3) IDE (PIO mode 4) IDE (DMA mode 0) IDE (DMA mode 1 ) IDE (DMA mode 2) IDE (UDMA mode 0) IDE (UDMA mode 1) IDE (UDMA mode 2) IDE (UDMA mode 3) IDE (UDMA mode 4) IDE (UDMA-33) IDE (UD MA-66) USB 1.X FireWire 400 (IEEE 1394-1995) T0 (payload) T0 (B8ZS payload) T1 (signal) T1 (payload) T1Z (payload) T1C (signal) T1C (payload) T2 (signal) T3 (signal) T3 (payload) T3Z (payload) T4 (signal) Virtual Tributary 1 (signal) Virtual Tributary 1 (payload) Virtual Tributary 2 (signal) Virtual Tributary 2 (payload) Virtual Tributary 6 (signal) Virtual Tributary 6 (payload ) STS1 (signal) STS1 (payload) STS3 (signal) STS3 (payload) STS3c (signal) STS3c (payload) STS12 (signal) STS24 (signal) STS48 (signal) STS192 (signal) STM-1 (signal) STM-4 (signal) STM-16 (signal) STM-64 (signal) USB 2.X USB 3.0 USB 3.1 FireWire 800 (IEEE 1394b-2002) FireWire S1600 and S3200 (IEEE 1394-2008)

More about Data Transmission

Overview

Data exists in digital and analog format and transmission can happen for both types through digital and analog channels. If both the data and the transmission method are analog, then this is analog data transmission, but if at least one or both are digital, then the data transmission is digital. This article focuses on the digital data transmission. Today more and more digital data is created and transmitted because it allows for fast and secure exchange of information. Digital data has no weight, thus the only weight associated with using digital data is often that of the transmitting device and the receiving or reading device. Using digital data simplifies the information backup process, does not contribute to weight when moving or traveling, compared to non-digital forms of data, such as books versus text files. Digital data transmission, storage, and processing makes it easier to work with data virtually anywhere in the world because it can be stored in a location that can be accessible by multiple people as long as they have Internet connection. People can also modify this data and work collaboratively on the same document by using remote computing described below, or by working with data shared online, for example with the files shared on Google Docs, or on articles in Wikipedia. This is why data transmission is so important. The recent trend to go paperless to decrease one's carbon footprint is also making digital data transfer popular. In fact, some believe that at the moment this is a marketing ploy, because the digital footprint may, in fact, be very similar for working with printed media. This is because energy is required for running the services to support digital data, and often this energy is produced from unsustainable sources, such as fossil fuels. However, it is the hope of many that we will soon develop technology that is ecologically efficient for working with digital data, compared to the pre-digital era. In everyday life people are choosing e-readers and tablets in favor of printed media, while large organizations make environmental statements when they keep all of their documentation in digital format and transmit data electronically instead of physically moving paper. As discussed above, this may be simply a marketing strategy at the moment, but nonetheless in part because of this strategy more and more companies are working on digitizing much of their data flow.

In many cases users need to take only minimal steps to ensure data transmission, and only in some situations direct involvement of the user is required, for example when sending emails. This is why it is convenient for the users, although much of the work happens “behind the scenes” in companies and organizations that manage data transmission. For example, to ensure fast Internet connectivity, and hence - fast data transmission between continents, a network of cables was and is still being laid along the ocean floor. It is also known as submarine cable. It connects most coastal countries. These cables cross all of the oceans multiple times, connecting countries through the seas and the straits. Laying and maintaining the cable is just one of the examples of the work “behind the scenes” - it ranges from the work that Internet service and hosting providers do, to the maintenance of servers in data centers, to the local work of website administrators who provide data transfer services to their users, like posting information, exchanging email, downloading files, etc.

To transmit data, several conditions have to be met: data has to be encoded, there needs to be a transmission channel as well as a transmitter and receiver, and communication protocols must be in place.

Encoding and Sampling

Data has to be encoded in such a way that the receiving party can read it. Sampling is another term used for data conversion. Generally data is encoded using the binary system, which means that each unit of information is represented as either a 1 or a 0. It is then transmitted as electromagnetic signals.

Often the analog data is converted to digital to be transmitted. For example analog phone calls that originated from a land line or a cellular phone may be converted to digital signals and sent via the Internet to the recipient. During this conversion the Kotelnikov Theorem, also known as the Nyquist-Shannon Sampling Theorem in English, is used. It can be summarized to point out that when converting analog signal to digital, so that it can be transmitted via a digital channel without loss of quality, the signal must not contain any frequencies higher than the half of the selected sampling rate.

Encoding could be secure to ensure that third parties besides the intended receiver cannot decode it if this data is intercepted. Secure encryption protocols are used for this purpose.

Transmission Channel, Transmitter, and Receiver

A transmission channel creates a medium for transmitting the data. Transmitters and receivers are devices that send and receive the data respectively. The consists of a modem that codes information and any device that transmits electromagnetic waves, from an incandescent lamp that was used to transmit Morse code, to lasers, to LEDs. A receiver that can detect the electromagnetic signal that the transmitter sent is also necessary. Some examples of receivers include photodiodes, photoresistors, and photomultipliers that detect light, or radio receivers that can detect radio waves. Some of these devices can only work with analog data.

Communication Protocols

Communication protocols are similar to a language in that they facilitate communication during all steps of the transfer of data. They also allow to identify and solve errors. One of the commonly used protocols is the Transmission Control Protocol, or TCP.

Applications

Digital data transmission is paramount in computing because without it using computers would not be possible. Below are some interesting examples of what data transmission enables the users to do.

IP Telephony

IP telephony or voice over IP (VoIP) technology is becoming a popular alternative to communication by phone via the telephone network. This form of data transmission uses the Internet. Some of the biggest providers are Skype and Google Talk. LINE is a newer product that is gaining popularity in Japan and globally. Many of the current providers allow free audio and video calls between computers or smartphones, and charge for other services such as conference calling or computer to landline or cellular phone calls through the telephone network.

Thin Client Computing

Data transmission allows organizations to simplify their computing solutions. Some organizations have multiple computers set up for internal use but for some of them only very simple features are required. These computers are connected to the server, which does some of the work for them - they are called client computers or clients in this case. In this setup thin client computing is often used. The client computers have very basic features, for example some workstations may provide only Internet access, some may allow the use of the library catalog, others yet may support simple applications such as data entry, for example to track sales. These clients with basic features are called thin clients, hence the term, thin client computing. The user of a thin client works with a screen and an input device such as a keyboard. The thin client sends user requests and data to the remote server, where all the necessary computing is done. In essence, the thin client is a device that allows the user at the client site to access the server remotely without having to process significant amounts of data or run software at the client site.

In some cases client sites use thin client hardware, while in other situations regular computers or sometimes tablets are employed. User interface needs to be processed locally by the thin client, but the rest of the processing is done on the server. In contrast with thin clients, regular computers that process data locally are sometimes called fat clients.

Thin client computing is convenient because it is cheap to install additional clients - most of them do not require expensive memory, processing devices, and software. Thin clients also allow minimizing security vulnerabilities, because the only vulnerable unit in this setup is the server. Hard drives and CPUs work well only within a certain temperature range, and they cannot tolerate some hazards in the environment such as dust and humidity. When thin clients are used, the environment needs to be carefully controlled only in the server room. Clients can work outside of these temperature ranges and in more hazardous environments, as long as they do not have local processing and storage capabilities, and as long as the display and the input devices have higher tolerance to hazardous environments, which they usually do.

Thin clients may not work well when frequent updates of the graphic user interface are needed, such as when working with video and gaming. If the server stops working, all of the clients will be disabled until they are connected to a working server. Despite these drawbacks, thin clients are gaining popularity because of their benefits.

Remote computing

Remote computing is similar to thin client computing in that the client computes access the server and often can manipulate the data and run software on the server. The difference is that a client that accesses the server is usually a fat client, that is, a regular computer. Thin clients usually work on the same local network as the server, while remote computing happens between the server and the client outside of the local network, often over the Internet. Remote computing has many applications. For example it allows people to work remotely while still having access to their company or home server. Companies can connect through remote computing to remote offices, where they outsource some of their activities, such as customer support. Remote computing allows for secure access, to prevent unauthorized people from using the servers, although security is sometimes a concern.

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Сaravan company specializes in the organization of high-speed Internet via fiber-optic communication lines, xDSL technologies, Ethernet and the installation of wireless access to the network. Tariffs for the Internet and other services are developed for each client individually. There are options for organizing unlimited Internet and access with a prepaid traffic package.

To organize Internet access using ADSL and ADSL2 + technologies, we suggest choosing the tariff plan that is optimal for your company.

Cost of connection using ADSL and ADSL2 + technology

Connect to unlimited internet carried out by various modern technologies (including ADSL and ADSL2 +). The Caravan company offers you the following Internet tariffs (the price is indicated with the services telephone connection, and, accordingly, without them).

Prices are indicated without VAT.

* Tariffs for Internet access are valid subject to connection from 1 telephone number and 2 telephone lines.

Application

Unlimited tariff plans

Caravan draws your attention to unlimited tariff plans... When connected,, is unlimited.

With telephone services *

Without telephone services

Prices are indicated without VAT.

There is no fee for changing the tariff plan.

* Tariffs are valid subject to connection from 1 telephone number and 2 telephone lines.

Application

Tariff plans with prepaid traffic

When you connect to the Internet network of the Caravan company, you will not only get the maximum stable data transfer speed, high quality connection and the required volume of traffic, but you will also be able to control your budget by choosing an economical tariff plan.

With telephone services *

Without telephone services

Prices are indicated without VAT.