The cost of network access depends on the type of Internet connection. In the very general view types are divided into wired and wireless. The first group includes all connection methods associated with pulling a cable to the subscriber’s apartment. The cable can be a telephone cable or intended only for the Internet; such a line is called a dedicated line. A wireless connection is setting up network access through a special antenna. In the article we talk about the listed options in more detail and advise which type of Internet connection is best to choose.
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What are the types of Internet connections?
Dial-up access
This is a modem connection via the telephone network. To set up, you need to have a home phone and a telecom operator whose equipment is powerful enough to provide access to the network.
The disadvantage of dial-up communication is that the connection to the network occurs through the same line as dialing. Therefore, simultaneous use of the Internet and telephone is impossible. In addition, on average, such a connection allows you to access the network at speeds of up to 56 Kbps. Few online games work with this connection, and downloading files can take several weeks.
Nowadays, dial-up connections are common in areas where population density or territorial features do not allow for broadband Internet.
Connection via asymmetric digital subscriber line
It is otherwise called ADSL. This is another type of modem connection. It also requires a telephone line, but a digital modem allows you to dial up and access the network at the same time. The line capacity with this type of Internet connection is higher than in the method described above. It provides the subscriber with a fairly high speed of access to the network - on average up to 24 Mbit/s. The load on the line is distributed asymmetrically - the incoming connection is faster than the outgoing connection (speed up to 1.4 Mbit/s). Because of this, it takes longer to upload files to the server.
Connection via cable TV
This is the type of access that is provided according to the DOCSIS standard - data transmission via television cable. It is usually used if there are no Internet providers in the house. With its help you can get speeds from 27 to 50 Mbit/s. To set up access, you must have a cable television and a special modem.
Access via Ethernet cable
Ethernet – dedicated line. It is used to connect a computer to the network directly or through a Wi-Fi router. The capacity of such a channel is higher than in the case of ADSL or television cable. Data transfer speed from 50 Mbit/s in both directions - both from the computer to the server and back. You can connect only if there is broadband Internet in the subscriber’s home.
Connection via GPON
GPON is a technology for setting up network access through a personal fiber optic line. It is carried out from the provider’s equipment directly to the subscriber’s apartment. This type of network connection setup provides maximum data transfer speeds of up to 1 Gb/s. To connect, you need to stretch a cable from the common line to the subscriber’s apartment and install an optical modem. The technology is not yet available in all regions.
More common than GPON are fiber optic and twisted pair connections. In this case, the optical cable is pulled to the apartment building, and the Internet is distributed to subscribers using twisted pair cables. The capacity of such a channel is lower.
Setting up access via antenna
This group includes radio, mobile, satellite Internet. To set up access using the listed channels, antennas are required.
Radio Internet operates through an access point provided by the provider. The signal from it spreads over a certain radius and arrives at the subscriber’s equipment through an antenna installed in the apartment. Then, using a modem, the signal is sent to the computer. If the access point is far away, the signal may be too weak. In this case, in addition to the antenna, signal amplifiers are used.
Mobile communications operate through antennas installed in cell phones or USB modems, no additional hardware required. This type of Internet connection is the most affordable, but has low bandwidth compared to a wired connection via a dedicated line.
Satellite communication is established through street antennas aimed at the satellite. Due to the large distances the signal must travel, it usually arrives with a delay. Other disadvantages of the connection include low connection speed, unstable operation in bad weather, high cost of equipment and subscription fees. However, in some areas, satellite communication is the only connection available.
How to find out your Internet connection type
If your device is connected to a network, you can find out the access method through the settings. Just go to Network and Sharing Center on Windows computers or Network for Mac. There will be information about the available connection options and the current connection method. If the Internet is not working at the moment or you need more detailed information, contact your provider's technical support.
What type of Internet connection to choose
Much depends on the carriers available in your home and your needs. Dial-up provides a slow connection speed and is inconvenient to use. You can select this only if other types of network settings are not available to you.
If you want to connect to the Internet via your phone, ADSL is more suitable. Using this channel you will get a speed sufficient for normal surfing: launching most online games, downloading movies, watching online videos. If you are planning to use smart home technology and want to set up digital TV via the Internet, find out about the possibility of replacing the telephone cable with fiber optic cable using GPON technology, with simultaneous connection of telephone, Internet and television. This will cost more, but all three services will be provided through one cable. The throughput of such a line is much higher than that of analogues.
If you do not have the opportunity to run a wire into your apartment, consider radio Internet or mobile communications. The disadvantage of the first is the need to install an antenna at home, the disadvantage of the second is the low connection speed.
Satellite access should only be considered if you have no other way to connect to the network.
How to Determine the Type of Internet Connection Available in Your Home
Use the form to select a provider by address on our website. Enter the city name, street and house number. The system will automatically select a list of available telecom operators for you. You can view their tariffs, get advice about the service and sign up for a connection.
Market information technologies literally overgrown with companies that provide Internet access services. What technologies are not offered today in wireless and wired connections to maximally cover hard-to-reach areas, increase data transfer speeds, and improve communication quality.
As many people know, first of all, different Internet providers differ in the type of services they provide, namely the type of access to the Internet.
An Internet provider is a company that provides Internet access to customers and provides related services.
There are many different types Internet connection. These include broadband, dial-up and wireless communication lines. All of them are capable of providing access to the Internet, although they work on different principles. Let's look at everything in order.
Ethernet – local network connection
This is broadband access to the Internet via a separate line. The line laid by the provider is based on fiber optic or copper cable and allows you to transfer data at very impressive speeds. A fiber optic cable differs from a copper cable in that the main material in it is glass or plastic, and information is transmitted through it not by an electrical signal, but by a light signal. This allows you to broadcast a signal with minimal attenuation and maximum transmission speed.
Leased line
Copper cable most often means twisted pair. Through it, information is transmitted by an electrical signal. Twisted pair, unlike optical fiber, has a significant signal attenuation rate and is susceptible to electromagnetic interference. To increase the length of the communication channel, cables with interference protection should be used, and to reduce the signal attenuation coefficient, special correctors or signal buffers should be used.
Do Internet providers do this in practice? Typically, fiber optic cable is used to connect the subprovider to the backbone provider and connect various buildings (homes, hotels) to the global network, and then there is twisted pair cable.
GPON (gigabit passive optical network) technology is now actively developing. Its essence is that the provider runs a fiber optic cable directly to your apartment and installs a special distribution box. As a result, you technically have the opportunity to connect to the global network at a speed of 1 Gbit/s, but in other cases the speed will not exceed hundreds of Mbit/s.
Modem connection (ADSL/Dial-Up)
Dial-up Internet access via a regular telephone line using a modem. There is both old technology Dial-Up or more advanced ADSL. Connecting to a provider via ADSL, unlike Dial-Up, allows you to surf the Internet and simultaneously make phone calls. This is achieved through an ADSL splitter, which separates the telephone signal into a regular telephone signal and a high-frequency modem signal.
Compared to a dedicated line connection, the advantage of a modem connection is the use of already existing infrastructure - telephone cables. This is where the advantages of this type of connection end. The maximum data transfer rate for Dial-Up is 56 Kbps, and for ADSL technology 24 Mbps. Considering the state of most telephone lines, there may not be such indicators about the stability of the connection. As you understand, a telephone line is inferior to a leased line in all respects, taking into account the stable growth of multimedia and the volume of transmitted data. Just a few years ago this type of connection was considered one of the best, but these days it has practically become obsolete despite its still active use.
Internet connection using DOCSIS technology
Literally, DOCSIS is translated as a standard for data transmission over coaxial (TV) cable. Information transmission according to this standard is carried out to the client at a speed of 42/38 Mbit/s, and from the user at 10/9 Mbit/s. It is worth noting that the bandwidth in this technology is divided between all connected participants who are currently receiving or sending a stream. Consequently, the available bandwidth at the time of data transmission or reception for each participant can vary widely.
This method is implemented through a special modem. We are talking about a cable modem for DOCSIS technology with a built-in network bridge, which makes it possible to exchange data over a coaxial or optical cable in two-way mode. In the network of such a provider there is a CMTS device - Cable Modem Termination System. Simply put, this device is a large modem in the backbone network to which subscriber modems are connected.
From an economic point of view, laying a coaxial cable in order to gain access to the Internet is not very reasonable; it is better to install a dedicated line, because such a line has better characteristics, but if you already have a TV cable and the operator provides such a service, then why not? take advantage of. However, if the provider can offer Internet using FTTB, PON or HCNA technologies, then due to a number of technical advantages it is better to choose one of them instead of DOCSIS.
Mobile Internet access (GPRS, EDGE, 3G)
This type of connection is popular because it allows you to access the Internet even where there is no telephone or leased line. You can connect to your Internet provider using a USB 3G modem or using a regular mobile phone that supports the modem function. A USB modem is visually similar to a USB flash drive and has a slot inside for installing a SIM card.
Internet connection via USB modem or mobile phone is performed by contacting the base station of the cellular operator with which the SIM card is registered, and depending on what equipment is installed by the mobile provider, communication is established using GPRS, EDGE, 3G or 4G technology. Thus, after connecting a USB modem or phone to a computer, you will have access to the Internet using one of the mentioned technologies.
Mobile Internet has a rather unstable connection and sometimes not high speed, but as they say, it’s better than nothing. The maximum data transfer speed in the presented technologies is on average 30-60 Kbps in GPRS; 100-256 Kbps in EDGE; 144 Kbps - 3.6 Mbps in 3G and 4G can exceed 100 Mbps, and for landline subscribers it can be 1 Gbps.
The speed may in some cases be higher, but in almost all cases it is lower. Mobile Internet, of course, has disadvantages, but to be able to access the Internet from anywhere in the country where there is cellular, captivates many.
Internet via satellite
To connect even to one-way satellite Internet, you will need a set of special equipment. The minimum input package includes a satellite antenna, a converter amplifier, a satellite receiver, an RG-6 cable of the required length and a pair of F-connectors.
For two-way satellite Internet you need a transceiver antenna (about 1.2 - 1.8 meters in diameter), a transmitting BUC converter and a receiving LNB unit and a satellite modem, to which you can connect not one, but several computers and provide them with Internet access .
Satellite Internet
With two-way Internet access, no additional channels are needed, since data is sent and received via satellite. Many satellite Internet operators can offer both unlimited packages and a pay-per-traffic tariff. Two-way satellite Internet for some operators is faster than 3G technology, and the speed in the Ka-band can be 20 Mbit/s.
The disadvantages of satellite Internet include the high cost of equipment, complexity of setup and decent response time. Typically, this type of communication is used in the most remote corners, where there are no other communication options.
Internet connection using WiMax technology
In addition to other types of Internet connections, you should pay attention to the very interesting WiMax technology. Typically, this technology is used where cable Internet of the DOCSIS standard is not available, there is no dedicated network in the home or office, or there is no telephone line for an ADSL connection. Access to the global network via WiMax technology, as well as via satellite connection, is often an excellent choice in such cases.
WiMax technology is theoretically designed for a speed of about 70 Mbit/s, but in reality it is usually several times less. To connect to the Internet via WiMax, you should contact the appropriate provider, who will determine from the network coverage map whether the desired location is supported by the coverage area. If it turns out that the location is not within the coverage area, then specialists will need to determine the distance to the nearest base station to you.
It is desirable that the base station is in direct visibility from the subscriber, and the distance is no more than 10 kilometers. Depending on the results obtained, you will need to select the desired WiMax modem and antenna with the required gain. In addition, you need a cable to connect the antenna to the modem and a USB extension cable to connect the modem to a computer or switch.
Types of Internet connection. Introduction
The Internet came to the masses only ten years ago, and during this time the ways to access it have proliferated, apparently and invisibly; However, most of the network devices were invented even before the popularization of the World Wide Web and were intended to receive completely different services. Be that as it may, now with regard to any means of communication the user has one question: how can this thing help me to access the Internet, to access a home or intra-apartment network? We will try to understand the variety of ways to connect to the Internet from home and home office.
The purpose of this series of articles is to consider the most well-known technologies from theoretical and practical points of view, but without taking into account their prevalence: the popularity of a particular technology does not mean its availability in your city, region, home. The proposed material should be considered as a small reminder when choosing from several real offers from local providers. Even if a provider of the desired type is found, the last word remains with its technical specialists, who determine the possibility of connection specifically in your case.
The articles are divided into chapters, each of which is devoted to separate species connecting to the Internet with a description of general points, types of this type of connection and the equipment necessary for this. The first publication will be of an introductory nature and will cover basic issues.
Classification of connection types
Subscriber connections to the Internet are divided into two main classes: individual and collective. With an individual connection, each subscriber uses a channel allocated personally to him to the provider’s point of presence located outside the building (Fig. 1a). An example here would be access to the Internet via a regular or DSL modem, via satellite.
Rice. 1. Classification of connections by mass use of channels
With a collective connection, a shared network is laid in the building, which is used not only for access to the Internet, but also for communication between neighbors without using the Internet (Fig. 1b). This class of connections includes all home networks and access via television cable. Simply put, the division is based on how many wires are connected to the house, and who will suffer if one wire malfunctions - an individual subscriber or an entire team.
Connections are also divided according to the subscriber’s distance from the provider’s point of presence (Fig. 2).
Rice. 2. Classification of connections by distance from the provider
In the case of home networks, the point of presence is located in the same house as the subscriber, or in the neighborhood. For DSL connections, the provider's equipment is usually located at the nearest telephone exchange. Classic access via a modem implies the presence of a provider somewhere within the city. And with satellite communications, a virtual channel is laid into earth orbit.
There are other classification methods based on technical characteristics. We won't go into details for now. Subsequent chapters will describe each type of connection in detail so that you can come up with the classification that you need.
Transmission speed
Perhaps, this question seems the most confusing, so we will consider it one of the first.
The speed of information transfer between two devices is determined, first of all, by the channel speed, that is, the number of “raw” bits transmitted per unit of time over the transport channel. This set of bits is called “raw” because, in addition to useful information, it contains service information. The ratio of useful and service information depends on the specific technology, and sometimes on the size of the transmitted block. For example, when downloading a file from an FTP server to local network Fast Ethernet, which has a channel speed of 100 Mbit/s, the payload will not exceed 96 Mbit/s. This efficiency can be considered almost ideal; in many technologies it is much lower: for example, for Wi-Fi it is less than 50%.
One of the common causes of misunderstanding between providers and their clients is confusion between bits and bytes. In the field of communications, as well as in other areas associated with low-level operations, the basic unit of information is the bit, and the unit of speed, accordingly, is the number of bits per second. The user operating with information on high level, it is more convenient to count in bytes. But the speed expressed in bits/s is numerically higher than in bytes/s, so it is more profitable for the provider to indicate the former. To completely confuse a potential client, the word “bit” is shortened to one letter “b”, which many mistakenly decipher as “byte”. Things get even more confusing when it comes to kilobits and megabits. Computer specialists traditionally consider the prefix “kilo” to correspond to a multiplier of 1024, while telecom specialists and many marketers who are far from knowledge of computer science use the decimal system, in which a kilobit is equal to 1000 bits. Taking into account all of the above, the channel speed of 100 Mbit/s declared for Fast Ethernet in practice corresponds to 11.4 MB/s (in ideal conditions), but not 12.5 MB/s, as one might think. And certainly not 100 MB/s!
Electromagnetic interference and signal attenuation have a strong impact on speed. Some technologies, such as Ethernet LAN, operate at only one speed over a limited range of distances between the transmitter and receiver. Other technologies, such as telephone modems, allow you to adaptively adjust the speed depending on the channel condition: the worse it is, the lower the speed. For example, ADSL channel speed varies from 8 Mbit/s on a good line near the telephone exchange to 192 kbit/s at a distance of 5 km.
Channel speed minus all costs is not the speed of Internet access. Channel speed only determines the maximum throughput between your computer and the provider’s point of presence. For example, the channel speed may be 100 Mbit/s, and the access speed according to the tariff you choose is 128 kbit/s towards you and 64 kbit/s towards you.
Whatever the connection of the subscriber - individual or collective - there are common channels from the provider’s point of presence to the Internet backbones (Fig. 3).
Rice. 3. Bandwidth of channels between client and server
The bandwidth of these channels is less than what would be required by all clients at the same time, because in the traditional model of Internet use only a small part of users simultaneously transmits and receives information. The skill of the provider lies precisely in having a channel with minimal bandwidth, and so that clients hardly feel the speed limit. Unfortunately, each provider understands the word “almost” in its own way, and sometimes it happens that the needs of subscribers significantly exceed the capabilities of the provider. The lightning-fast appearance of new high-speed subscriber connections makes its contribution, followed by global networks don't keep up. For the same reason, the model for using the network is changing: if previously downloading movies, music, and games seemed unrealistic, now many users download gigabytes of information around the clock.
When working with servers on the Internet, you need to understand that each server has its own provider, whose channels are also not rubber. Highways between cities, countries and continents also have their limitations, serving millions of users. Even if you are entitled to 1 Mbit/s according to the tariff, do not be surprised that the download speed from somewhere in Australia or South America will be 10 kB/s.
Transmission delay
By and large, high transfer speeds are only important for downloading large files. For web browsing, online gaming and Internet telephony, transmission latency is much more important. It is the delay that determines the comfort of work. Typically, providers rank tariffs by transmission speed, and therefore many equate speed and latency, but they are not the same thing.
Let's compare the satellite channel and a regular modem (Fig. 4).
Rice. 4. Time diagram of information exchange during different meanings speeds and delays
In the first case, the speed can reach several Mbit/s, but you cannot get more than 56 kbit/s from the modem. But the modem has a delay of only a few milliseconds, and from a satellite it is more than a second. The first user can quickly download a large file, but the web page will not open until a couple of seconds after entering the address. In action games, this user's shooting at opponents will be unsuccessful, because it will seem to him that he is aiming, but the target has actually run away long ago. Conversely, the owner of a modem will need at least ten minutes to download a short song, pictures on web pages will load slowly, but the reaction to the user’s actions can be almost instantaneous.
The delay is determined not only by the signal propagation time through the transmission medium, but also by the time it takes to process signals and data by various network devices, which can be many times longer than the propagation time (Fig. 5).
Rice. 5. Increasing delay with passage of sections between the client and server
The delay is affected by channel congestion: in an overloaded area, data queues will appear, some of which may be lost, which requires additional time to detect losses and retransmit. Therefore, it is not a fact that a modem user will be more successful than a satellite user in games: if the game requires a higher frequency of data exchange than the modem can provide, the channel will simply become clogged with data, and the action in the game will occur in jerks.
Tariffication
To charge in proportion to the volume of service use, providers may take into account the connection time (for session access via a modem or satellite), may take into account the amount of received or transmitted information, may take into account everything at once, or may not take into account anything at all, limiting themselves to only a fixed subscription fee.
The user can control the connection time independently, and almost everyone has an idea of how much time they are going to spend on the Internet. It is much more difficult to control your traffic because it is intangible without special technical means. The user simply does not realize that he is dealing with large amounts of information, especially if the speed is high and the loading time is correspondingly short. A classic joke on this topic: a subscriber who refuses to pay the bill motivates his refusal by saying that he did not download the movie, but just watched it (of course, this is the same thing).
Traffic accounting programs are not standard components of user operating systems; to choose the right program, you need to try many options, and this is not an amateur activity. In addition, the program on your computer only takes into account what came onto your computer while the program was running. And the provider takes into account everything that was intended for you, even if your computer was disconnected from the network at that moment. Particularly greedy providers even take into account traffic within the local network (between their subscribers), while other providers may not take into account traffic from some sites on the Internet or sell it at preferential rates. Caring providers create their own multimedia and game servers so that the user does not have to spend money on working with the same resources on an external network.
Tariff plans taking into account the volume of traffic have a constant component in the form of a subscription fee, which already includes a certain amount of traffic. A clear understanding of his needs allows a prudent subscriber to choose the optimal tariff, because even incomplete use of the traffic included in the subscription fee for a more expensive tariff can be cheaper than paying for overconsumption on a tariff with a lower subscription fee (Fig. 6).
Rice. 6. Selecting the optimal tariff based on the amount of traffic consumed
Unlimited tariffs seem more attractive to many users. Of course, you need to understand that nothing happens without restrictions. The provider bases its proposals for unlimited access on the assumption of an average traffic rate per person. If you constantly exceed a certain limit, you will either be offered to pay extra, or your access speed will be reduced, or the contract will be unilaterally terminated. For marketing reasons, this limit is rarely advertised in the contract, but rest assured: the provider will always find a legal justification for its actions. To prevent the user from getting the erroneous feeling of permissiveness, access speeds on unlimited tariffs are usually low: for example, the same provider may offer 2 Mbit/s for tariffs with paid traffic, but no more than 256 kbit/s for unlimited tariffs.
Authentication and data protection
The provider's equipment determines whether to allow access to the client using authentication. The basis for authentication can be a username and password, the network address used, or even the fact of a physical connection over a given cable. The common feature of all these methods is the ease of falsification: it is enough to connect to your wiring and/or intercept the necessary information.
Even if the provider does not count traffic, it is in the interests of it and legitimate users to make it difficult for unauthorized connections and tampering. Firstly, the traffic of illegal immigrants leads to additional costs for the provider, which are reimbursed by legal users. Secondly, any traffic loads channels common use. Thirdly, pirated connections often have the goal of maliciously affecting subscribers’ computers and compromising them.
The basic level of security is provided by a point-to-point connection (Point-to-Point, PPP) between the subscriber’s computer and the Internet gateway with mandatory password encryption. The greatest confidentiality is achieved using virtual private network (VPN) technology, but to encrypt all traffic the provider would need powerful equipment, which would not have the most pleasant impact on the cost.
Subscriber network address
To exchange information over the Internet, each computer needs a network address called an IP address (Inter-network Protocol). In order to simplify local networks, some addresses are not part of the Internet address space. Such addresses are called internal, and, unlike external addresses, they are valid only within their local network, and the same internal addresses can be used in different local networks.
Rice. 7. Internal and external IP addresses
The subscriber’s computer with an internal address (“A2” in Fig. 7) works with the Internet not directly, but through address substitution, which is carried out by the provider’s gateway (“A3”). In this case, all subscribers of the local network from an external point of view look like one user, which is the gateway. An arbitrary computer from the Internet (“A4”) cannot directly access the subscriber’s computer, which, by the way, protects the subscriber from external hacker and virus attacks. This is the best option for users who require web and mail.
Some applications require direct access from the Internet. First of all, such applications include increasingly popular file-sharing networks and similar peer-to-peer communities (Peer-to-Peer, p2p), for example, distributed IP telephony. Peer-to-peer means that there is no division of network participants into clients and servers: any computer is both at the same time, and therefore must be accessible from the Internet (“A1” and “A4” in Fig. 7). An external IP address may also be required to work with some FTP servers and client-bank systems. You can’t do without it when creating your own game or web server. However, having an external address, the computer is accessible not only to the desired target audience, but also for the whole variety of attacks. Therefore, owners of external addresses must take special measures to prevent attacks, paying special attention to installing and configuring firewalls and antiviruses.
Some providers allocate external addresses at no additional cost, while others charge from $1 to $20 monthly for this pleasure. Moreover, on cheap tariffs, blocking of some incoming connections can be introduced to prevent the subscriber from creating any servers.
Regardless of whether the user has an external or internal address, it is technically possible to directly exchange information between subscribers of the same network. But the provider can block such exchange so as not to overload internal channels, or, as mentioned above, such exchange can be charged on the same basis as external traffic.
Connection cost
When reviewing each access technology, we will try to provide a rough estimate of connection costs. These costs consist of three main components: the cost of equipment, payment for the provider’s actions and your own labor costs. The latter includes, for example, cabling throughout the apartment, if it is required for this type of connection. The fee to the provider can be of very different amounts for the same type of connection: from free or discounted during a long-term advertising campaign to several hundred dollars. It is difficult to predict anything here, so we will limit ourselves to indicating the approximate cost of the equipment.
However, the equipment is different: there are simpler models, and there are sophisticated ones that can cost several times more. If a provider offers to purchase equipment from them, such a standard package, as a rule, includes a simple model with a minimum of necessary functions. It is this option that we will focus on, and advanced users themselves will always be able to choose a model to suit their taste and budget.
Access sharing
There are more and more users who have several computers in their home: desktop, mobile, pocket, refrigerator with automatic ordering of products via the Internet. Of course, they all need Internet access, and it would just be nice to combine them into one intra-apartment network.
Rice. 8. Home router - the center of the intra-apartment network
The optimal solution for most are specialized home routers - Internet Gateway Device, or, in common parlance, Broadband Router. Thanks to the development of electronics, it is now possible to implement many functions in one single chip. Therefore, several devices, previously offered as independent products, are easily combined in a small home router housing (Fig. 8, 9).
Rice. 9. Appearance of home routers
The simplest models with a built-in 4-port switch cost about $50. A multifunctional combine that also combines an ADSL or cable modem, point wireless access and a print server (or network-attached storage) can be purchased starting at $150. Such a device provides almost transparent sharing of a single connection between several users, protects them from attacks, and can even scan traffic for viruses. VPN routers allow homeworkers to create a secure connection to their office network; Unlike simple gateways with the ability to pass VPN traffic (almost every modern router can pass-through VPN), real VPN gateways have a powerful encryption processor and take care of all the troubles of creating secure channels.
What I would like to warn against is purchasing equipment “for growth.” Current trends mean that by the time you finally need those features you overpaid for a couple of years ago, the technology used may have changed so much that it renders your supplies virtually useless. For example, if you don’t yet have wireless devices, but plan to have them, buy a router not with a wireless adapter installed, but with a PC Card slot, into which you can then install the most modern adapter. However, you shouldn’t go to the other extreme, limiting yourself to a minimum of functions without taking into account the prospects.
October 26, 2013 | comments: 7
The Internet is divided into several types of connections, depending on the power of all computer equipment, the provider and the connection speed required by the user. To find out your Internet connection, find the Internet icon on your desktop in the quick panel and right-click on it. Next, select “Network and Sharing Center”, this is where you can find out the type of Internet connection.
How to find out the type of Internet connection
So, the first type is a dial-up line, consisting of an analog telephone line and a modem. This type of communication is the simplest and lowest speed. It is used, as a rule, to connect private users with ordinary personal computers. The connection itself is based on dialing to the provider using a very ordinary telephone line, which gives the computer access to the Internet. This connection requires hourly pay. The maximum speed of this connection is 33,600 kilobits per second, but do not forget that it may decrease due to insufficiently good quality of the telephone lines used.
The ISDN network is a digital network, quite similar to a traditional telephone system, only in this case the telephone signal is transmitted not an analog signal, but a digital one. Moreover, with this connection, digitized voice is also transmitted. Thanks to these capabilities of this type of communication, the user can talk on the phone at the same time and exchange the data they need with other users. The advantage of this connection is that the speed of transmitted information can exceed the speed of an ordinary telephone line by almost five times.
Another type of Internet connection is a satellite connection, which is the fastest and most often used by the largest enterprises and companies, government and military organizations, and the most well-known providers. The use of this type of connection is facilitated by satellite communications.
In places where communication using radio modems is not well developed, or where it is used for networking on laptops and electronic notebooks, a radio connection is usually used, most often using a digital mobile phone.
The highest speed type of connection is a leased line. Thanks to this type of connection, the user can have an uninterrupted connection to the Internet. This connection denotes a permanent connection between the provider and the computer using special cables (copper, coaxial or fiber optic). This type of communication is used mainly by organizations with an extended computer network.
Find out the speed of your Internet connection
For this there are special services. In this article on our Runet start page, we decided to post several services for measuring the speed of your Internet.
http:// 2ip.ru/speed/
http://www.speedtest.net/
http://77.51.250.80/speedtest.php
So, choosing an Internet connection is a personal matter for everyone, chosen in connection with their desires and capabilities. Of course, Internet technologies are improving from minute to minute, so it is not always so easy to decide on the right provider, speed, connection, etc. Due to huge competition, the cost of the Internet is falling right before our eyes, in contrast to its speed. Therefore, the price that the user had to pay two years ago is specifically different from the price today. The obvious factor is that you need to choose an Internet connection, looking not at the cost, but at what will best suit all the user’s requirements. And of course, you don’t have to pay for the Internet at all if you have free access to wi-fi.
