June 6, 2009

Wireless Printer

Author: admin - Categories: Wireless Technology

Now a days users are shifting to wireless technology and it’s a very common norm that consumers are now a days using wireless printers. Wireless printers do not require any sort of cables or Ethernet and they are very economical to install. Wireless printer can be easily adjusted by following these steps: Read it all..

Broadband Speed Test

Author: admin - Categories: Broadband - Tags: , , , , , , ,

There are lots of things that can be tested in a broadband speed test such as the download and the upload speed, networks, latency, DNS servers and ping time.

First most important thing that is measured in a broadband speed test is the download speed. Download speed shows how fast the connection can deliver content to your computer or the local area network. Read it all..

June 3, 2009

Wireless Speakers

Author: admin - Categories: Wireless Technology

Wireless speaker are almost same as the normal speakers but the only difference that lies between the two is that in the normal loud speakers there is a cable to transfer electronic signals but in the wireless speakers there is no use of cable at all so signals are transferred without the use of cable. The electronic signals basically carry sound information which is than transmitted in the form radio frequency.

Basically wireless speakers consist of a main unit which has loudspeakers and a RF receiver and it also has a secondary unit which has a transmitter to catch RF signals. This transmitter is connected to an audio output which can be of any audio device such as hi-fi equipment. The thing that usually is used to achieve this is an RCA plug.

This plug connects the transmitter with the audio output of an audio device such as a TV. Normally the receiver is positioned where the listener wants to hear the sound, this gives the listener a big freedom to move the speakers anywhere he wants without the use of cables which is in the case of normal speakers.

Mostly the receiver is connected with some sort of amplifier which is used to amplify the audio signals which ate than transferred to the speakers and they need to be connected to some sort of battery. The frequency range is almost similar that is used by a normal telephone phone. The frequency range of a normal cordless phone is around 900MHZ which is same for the wireless speakers.

In recent wireless speakers there is a tuning knob which can be used to alter frequency at different ranges. This knob is usually there to make sure that no interface occurs with other devices such as the cordless phones. Now days several different types of wireless speakers are present the most common is the stereo which is mostly used inside the houses.

Some wireless speakers are designed mostly for outdoor purposes. Sometimes wireless speakers do present problem when RF interfaces with other devices such as the cordless phones, TV and sometimes it gives poor sound quality but this is in very few cases. Wireless speakers are being used very commonly these days and they are in growing demand.

Wireless Internet

Author: admin - Categories: Wireless Technology - Tags:

Wireless internet basically uses two main radio technologies which are single carrier known as direct sequence spread spectrum and multi carrier know as OFDM. The very first wireless product introduced was WAVELAN. Wireless internet provided devices such as mobile phones, PC; games console an access to the internet. Wireless networks have also made it possible to set up what is known as mesh networks. Since wireless internet is used in homes and offices it can also be provided at different hotspots in different locations to common public. Many different businesses such as airports, hotels provide wireless internet on hotspots as a main source of their publicity to attract customers.

A very attractive feature of wireless internet is that it allows peer to peer connectivity through which two to three consumers can connect with each other which is mostly popular in gaming. Personal computers can connect with each other with this technology, mobile phones can connect with each other at hotspots and digital cameras can transfer all sorts of data through this technology. Wireless internet provides connectivity in places where network connection is very rare such as bathrooms, gardens and kitchens. Wireless technology is now a days spreading at a very rapid pace in both the business as well as the industrial sites.

Wireless internet allows LAN (local area connectivity) without the help of cables which reduce costs significantly. Now a days wireless network adapters are being built in most of the devices especially in laptops which makes the price of wireless chips very low. The wireless networks have a limited range like for example a typical wireless router may have a range of around 32m indoors and approximately 95m outdoor. Due to these reach limitations of wireless internet the power consumption becomes fairly high. One important issue is the wireless pollution or large number of access points in a single area which can prevent interface with the usage of access points used by others. This problem persists basically in high density areas which are mostly crowded such as buildings, apartments and office buildings which have large number of access points.

Wireless system is mostly being used in homes these days for security measures. Recently in couple of years wireless embedded products have been introduced which have a real time operating system attached with it which allows any device to connect with it which has a wireless access port. The data from these embedded wireless technologies can be uploaded from the home network to any place in the world.

Wireless Headphones

Author: admin - Categories: Wireless Technology

Wireless headphones give you the opportunity listen music or watch a movie close to your stereo system. The headphones are not plugged in with the television, computer, mp3, but they communicate with the help of infrared or some sort of radio signals to a central base. Read it all..

June 2, 2009

How to Broadband Works?

Author: admin - Categories: Broadband - Tags: , ,

The basic working methodology of BROADBAND is as follows:

  1. Basically the first essential thing is the modem that is used to connect and will be attached with the users personal computer.
  2. Secondly if you want to connect to more than one telephone lines than a splitter is required that usually splits up the voice with the ADSL and makes sure that interference is not created at any level.
  3. These splitters are than connected to the telephone wires which may be above or below ground level depending upon the location. These telephone lines are connected to a DSLAM or know as telephone exchange.
  4. When the telephone line is connected to the exchange it serves the same purpose by separating the voice in the same manner as the splitter. All the DSL lines are connected to DSLAM in the telephone exchange which than passes it to multiple customers.
  5. The local exchange is like a cloud because here there are multiple tons of networks.
  6. The local exchange is connected to a gateway this is the point where all the terminals are terminated. There are different sizes of gate ways depending upon the traffic sizes. The most common gate ways that are being used are of 34MBS or of 155MBS. The 155MBS can support up to around 7000 customers.
  7. Now the ISP is connected to the gate way. It can be connected to the gateway in different ways. There are two ways in which gateway can be connected either through an Ethernet or a gigabit Ethernet. Like for example if your ISP is of around 155MBS than Ethernet wont work the only thing that will work in such case is the gigabit Ethernet.
  8. Once your ISP is connected the BROADBAND is in proper working condition.

The ordinary phone lines normally can transfer fewer amount of data from one place to another which is around 29.6kbps but as the time passed on consumers demanded a much faster and easier way for speedy data transmission so broadband fulfilled that purpose.

So if the ordinary telephone line has a single channel to carry data at the same time broadband has the ability to carry multiple channels hence transferring data at a higher speed. It’s just like a tunnel the broadband is a big tunnel that allows flow of information and telephone is a small tunnel that allows less amount of information flow.

Wireless Router

Author: admin - Categories: Wireless Router - Tags:

Wireless router is basically used in the wireless internet connections which perform basically two functions:

  • Router
  • Access point

The basic function of the router is that it allows the information to go forward without the need of cable device. Mostly the wireless routers have following properties/characteristics:

  • A LAN port to connect to a local area network.
  • A WAN to connect to the wide area network.
  • Wireless antenna which allows connecting to different connections.

Wireless routers basically have wired as well as wireless routes so that consumer can have wired as well as wireless connectivity at the same time. Following things should be kept in mind before buying a wireless router:

  1. Mostly look for dual band routers because they perform much better than the single band routers.
  2. You can also use simultaneous routers but that can be expensive.
  3. Don’t go for two or three antennas the most important thing is the router.
  4. Usually go for a router that has a guest access which can allow your friends to have an access without telling them the network password.
  5. Always look for WIFI protected set up because it provides you maximum protection.
  6. Mostly all the wireless routers have a firewall so there is no need of extra firewall protection except in few cases.
  7. Always do activate a DNS account in your router.

The most basic function that the router performs is the traffic that it manages at your home. The router should always be placed closed to the signaling device. Routers can be used to increase the strength of the signals by placing it properly.

It is always important to buy antennas from the same person who is providing the router so that it matches the specifications. In order to attach more that one router make sure the there is no sort of disturbance in the installation process. Some technologies can now convert a wireless router in a converter these are very common like for example DD-WRT can convert a wireless router into a converter.

Wireless Broadband

Author: admin - Categories: Broadband, Wireless Technology

The most recent technology these days is the wireless broadband which allows an internet access and transfer of data to a much larger extent. Most wireless broadband have an access facility of around 50km. initially the wireless internet facility was being adopted in the rural areas where it was very difficult for DSL to reach.

To simply use the wireless internet service the consumer’s just place a dish or some sort of signal catcher in front of the transmitter that provides the signal and passes it through to the consumer. Basically the wireless modem receives the services and than convert these services into radio signals so if a consumer is connected in that area signals are transmitted to him.

Most commonly the wireless internet is being used in laptops the only thing required is the broadband adapter. What happens is that the adapter once connected starts searching for wireless signals and when it catches the signals it tries to connect it self with it.

If there is no security protection than their would be an easy connectivity between the two. Mostly the wireless broadband is protected with some sort of security otherwise customers would just use the facility and increase the customer traffic. To avoid such thing now a days high security software’s are used to protect unknown users from connecting the wireless internet facility.

Wireless broad band makes it much easier for the users to use the internet. Simply following things are required to connect through a wireless network:

• Wireless modem
• Router
• Switch

Wireless broadband is very common now days and is being used by large organizations as well as chain hotels. The basic workable function of wireless broadband is that a consumer connects itself through some sort of a signal catcher or a transmitter. The transmitter catches the signals in the form of radio signals and than it passes it through to the router and than to the modem. The modem than connects the consumer with the transmitter.

What is DSL?

Author: admin - Categories: Broadband

In early phases DSL was most commonly known as digital subscribers loop but since it has gained lots of popularity it is now known as digital subscribers line. The basic function of DSL is that it provides digital data to pass through the lines of telephone. DSL has this unique property that it can be used with the telephone line without disturbing it. This unique property is due to the fact that DSL usually uses very high frequency while the ordinary telephone operates at a low frequency as compared with the DSL. The performance of DSL depends upon two things:

1. What service level is adopted?
2. What is the condition of line?

The working of DSL is basically in two very simple steps. DSL divides the frequencies that are used in a telephone in to two parts. First is the ISP data which is carried through the higher frequency and the second which is most important is the voice which is carried over through the low frequency. This is the only reason the DSL modem and the telephone lines can be used together. The basic working of the DSL is as follows:

  • First of all DSL modem is attached to the customer’s phone line.
  • Now the telephone company connects the other part of the telephone line to what is called as DSLAM.
  • When the DSL modem is switched on it does a self test.
  • It normally checks the connection between the DSL modem and the sender.
  • In the last phase the DSL modem tries to synchronize with the DSLAM.

The basic function of the DSL modem is that it converts the digital data into small voltage signals that can be used in the phone lines. In very few cases some DSL do require some sort of filters to be installed. These filters are installed at the telephones near the customer residence. There are lots of digital subscribers technologies like:

  1. ISDN
  2. HDSL
  3. SDSL
  4. ADSL
  5. ADSL2
  6. ADSL++

DSL carries a download speed from around 256kbit/s to almost around 28000kbit/s and it varies.DSL is the latest technology that is being used for high speed connectivity and optimum performance.

What is Broadband?

Author: admin - Categories: Broadband - Tags: , , , , , , , , , ,

Broadband these days is very widely used in telecommunication these days. Its basic function consists of providing signals by handling wide range of frequencies. These frequencies can be than subdivided into frequency bins. It has a very simple working principle the larger is the bandwidth larger amount of information it can carry. Broadband is used in several different areas for example:

  1. Telecommunication
  2. Data communication
  3. DSL
  4. Ethernet
  5. In power line communication
  6. In video

In data communication broadband serves as source to handle numerous pieces of data to increase what is called the transmission rate. The basic function of broadband in DSL (digital subscriber line) is that it can transfer the digital information to a very high bandwidth channel. The common interface that is used for the broad band modems is the Ethernet which is used for DSL as well as cable net. Now a day’s power line communications are also being used.

So the basic function that the broad band performs in the power line communication is to achieve very high data rates. The basic difference between broadband and the dialup is that the dialup modems are limited to bit rates while broadband provides much greater speed without disturbing the telephone line. Now why broadband is called high speed internet because it has the ability to transfer data at a very high speed. Basically broadband is anything higher than 256kbit/s.

The common term that is used in broad band is data rates. Data rates are typically defined as maximum number of download. Broadband technologies which are common in most areas are DSL and cable modems. Many newer technologies are coming up like VDSL and optical fiber. In most of the areas where people face a difficulty to install DSL or cable modems they are using what is called as WIFI.

Broadband is very commonly used these days in mobile networks other than the computers. The technology that is used in mobile networks is called as WIMAX. There is no set definition regarding broadband with respect to bandwidth but mostly anything above 786kbit/s is considered as broadband. So broadband plays a very vital role in telecommunications and is spreading at a very high pace all over the world.


May 26, 2009

Flat file CMS – the easier option for more speed

Author: admin - Categories: Content Management System - Tags: , , , , ,

Usually astandard CMS (Content Management System) or Blog like Wordpress is in these days database driven, mainly based on MySQL. The development over years has given well-known systems like Joomla, Typo 3 or Wordpress a lot of functions and many nice plug-ins.

Anyhow there are some considerations which make it worthwhile to think about alternative solutions. The first point is installation. Modern programmes have a pretty large amount of code (typically in the range of 10-30 MB) which needs to be transferred to the webspace. In addition you need to set up a database. Technically all this is not a problem, but depending on the speed of the website and database on shared hosts and as well on your personal internet connection it can become a time consuming task.

Also you need to carefully write down the passwords from the database, sometimes very difficult letters and figures, and you need to put them into the setup of the software. This is a one-time problem, so not that important but still(especially if you regularly set up websites) it becomes a boring task But more critical is the regular backup of the database, especially for those making use of an external web space.

Usually you have to take care yourself on backing up all the files, or at least it would be recommended to do, as in case of a crash there is no guarantee that the data is still there. Most webmasters will do the backup procedure correctly in the first month or so. But when time progresses, the less the frequency becomes. After a year or so, in many cases no backups are done anymore.

You may be lucky and the server doesn´t crash or your hosting company has done such a backup. In real life there is actually a big risk loosing data.

But beside these technical points, they are also other reasons to make use  of the flatfile CMS. One thing is speed. A flate file CMS has a lightning speed, even if there is a lot of server load and a heavy use of the database.

One more thing to mention is usability. There are people who want to put everything on the software. But the other option would be to do the most important things in the shortest possible time. Certainly standard CMS are not difficult
pieces of software, but flat file CMS / Blogs like Flatpress or RazorCMS are still much easier to handle. With a flat file CMS you can concentrate on doing the things you want to do, and not wasting time searching through the menus. As open source software they are avaliable free, and additions and themes may be downloaded from freebies sites.

Again, this is not to argue about the value of highly developed software, which definetely have their value. But sometimes you simply need less to become happy.

May 15, 2009

VoIP Communication- How it Works

Author: admin - Categories: Telecommunication - Tags: , , , , ,

By now, a lot of people already know what VoIP communication is. Others however who are just starting out exploring the internet may want a basic explanation of what it is. Although the real technical details of VoIP are complicated, its basic concept is easy to understand. Read it all..

May 14, 2009

Online surveys Software

Author: admin - Categories: software - Tags: , , ,

Among the online money making strategies, paid online surveys have attracted a large number of people around the globe. Had you been exploring ways to generate some money online, you certainly would have come across a few lucrative online survey offers. This article answers questions like what are online surveys and do online surveys generate a decent income.

When it comes to online business data mining is an important part of the research department. By conducting online surveys, companies collect the valuable data from consumers and use it to improve their services or to survive the competition. There are online survey companies that conduct such surveys and get paid for it. If you part take in the surveys, it is possible to get a fraction of the sum at times depending on your luck. Read it all..

April 16, 2009

Information Technology

Author: admin - Categories: Information Technology

Ours age of computers and information communication. The last twenty years of 20th century sew the introduction of the computer in all walks of life. Industry, Business, Agriculture, medicine, law, defence, administration, traveling, and so on makes use of the computer for rapid progress and development. All professions needed the last information from all over the world for their respective fields of activities.

Only the computer can store provide it on such a large scale. the 19th century almost half the 20th century was industrial and agriculture. Now the 21st century is one of the information, and information governs the developments and expansions of science, Industry agriculture, and tread. Read it all..

January 15, 2009

What is a Quality Web Hosting Company?

Author: admin - Categories: Web Hosting - Tags: , , , , , , , , , , , , , ,

This series of articles faculty help as a orientate in helping you resolve on what a squeaking character cyberspace website hosting companionship is and help you in selecting one as fit. There are quite a come of factors you’ll pauperism to examine, we faculty solon with pierce. Read it all..

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