Monday, March 9, 2009

What Is Streaming Audio?

Streaming audio is the method to send the audio signals on our computer through the Internet. The main advantage behind it; is that we do not have to completely download the audio files such as .wav files or .au files and wait for them to listen before they get downloaded. But because of Streaming Audio method we can directly hear the audio files as soon as we get them on our PC.

How the process actually happens? Let us discuss it in detail: -

When we click on the link of the song, the entire song starts playing right away. As the audio signal arrives it is buffered for a few seconds and then it begins to play. As the audio is playing, more data is continuously coming and as long as you are receiving a continuous stream of data, you will hear the steady audio.

So as long as there is data in the buffer you will be able to hear the audio sound. But due to congestion on the Internet buffer can go empty and it sometimes becomes very difficult and need to be rebuffered again and again.

Let us talk about its benefits which have made it very useful these days: -
  1. It is treated as the best mode of communication when large audience is watching the live show on the Internet and can even take part in the live discussions and communications with other participants. Thus it helps in increasing the audience over the Internet.
  2. The people who need to listen to particular conference can tune in at their appropriate suitable time and method and thus it helps them in attending the live conference with very little cost.
  3. It is also beneficial to converse with the media, public, employees or other analysts.
Thus it helps in live broadcast as in case of live conference, archived broadcast for those who want to converse at their appropriate time and with their own suitable method and it even helps in indexing by just clicking the links to hear audio files.

Audio Streaming requires software Internet Explorer, Java made web browser, Real player or Window Media Player. Regarding hardware, it needs about 16 MB RAM, 28.8 Kbps to 30 (kilobytes per second) modem, 16 bit of sound card and headphones or speakers.

Streaming audio is nowadays added to the websites to increase the user population over the Internet.
The good quality of Streaming audio can be achieved by first shutting down all the other activities going on your PC and then open up the web browser and media player.

Thus Streaming audio is all about listening to the audio files as soon as we get them from the Internet and do not have to wait for the complete file to get download.

Monday, March 2, 2009

Best tips to Successful Reverse Cell Phone Lookup

Reverse cell phone lookup is similar to reverse address lookup. You type the current or pervious cell phone number in the online searches available. You can use this search to find out about the person giving you the blank calls. There are free online search tools available.

The companies providing this service online have with them mobile database. When you type the mobile number, the tool cross references the number from the mobile directory and display all the details of the person to whom the number belong.

If you are using the search engine then it will display all the numbers related to the number you type. So, you have to be very particular about how you conduct the search. Put the number in quotations. This will give you the results you are looking for.

The best option is to take the service of the companies offering the service online. This service comes with a fees but it relives you off all the pains you take while searching it from different sources. The companies offer you annual membership. Once you register, you can conduct your own search and carry out the investigation about the unknown number.

You can also use following methods to find out about the cell phone number which continuously display on your mobile screen but you cannot recognize it.
  1. Best is calling back the number which you have received and you do not recognize. You get the results at that very moment. You can use your mobile number or your landline number for this. If you do not want to reveal your landline number then you can call back the number from any public booth or the phone in the restaurant or in other public place.
  2. You can also contact a private investigation agency to find it for you. This is a costly method. But the results it delivers at the end are satisfying.
  3. Search the online directories. These white pages are just the online version of the directory you have at home. Feed in the number in the search option and submit. The details related to the number get displayed. But as this online directory contains the details of the landline numbers, this is not the effective option for the unidentified cell numbers.
You can call back the number. This gives you results instantaneously. But consider above options only if you have time for them. Best is to take the annual membership and search the number with reverse cell phone lookup tool. You identify both the landline and cell numbers with this tool.

Wednesday, February 25, 2009

How Hybrid Cars Work

Hybrid car is a combination of electric car and gasoline car. A fuel driven car has a fuel tank and engine and transmission. This tank supplies the fuel to the engine turns the transmission which thus drives the car. The electric car runs on the battery. Battery supplies the electricity to the motor or the engine working on the electrical impulse.

The hybrid car is a combination of both the electric and fuel car. It has the fuel tank as well as the battery. The hybrid car has the gasoline engine, fuel tank, battery, generator and electric motor.

How hybrid car works?

The engine is like the gasoline car but in a slightly modified form and smaller in size than that used in pure fuel cars. The fuel tank is smaller than the fuel tank in fuel driven cars. The generator electric power and is used most commonly in the series hybrid cars.

Generator differentiates the hybrid car from fuel driven and battery driven cars. The parts of the hybrid car are light in weight when compared to the fuel driven cars. Hybrid cars use power from both the sources- gasoline and battery.

This combination is used either in parallel or in series. In parallel combination both the fuel and battery are used to turn the transmission. The fuel tank supply fuel and battery supply the electric current to the electric motor.

In series combination, the fuel and battery are used in series. The fuel engine turns the generator which in turn charges the battery. The battery then turns the transmission. The fuel engine turns the generator which turns the internal combustion engine. The fuel is required till the combustion chamber comes to certain temperature. Once a certain temperature is attained, the fuel consumption turns off and the electric motor comes into play.

Advantages of hybrid car

A hybrid car gives several advantages over the other two types. Firstly it uses less fuel. This fuel efficiency gives higher mileage for the same amount of fuel than that consumed in gasoline cars. This is because the engine is smaller in size in hybrid cars. Besides this the cars utilize advanced aerodynamics to reduce the drag which in torn increase the fuel efficiency.

Besides this the hybrid cars are made of light material and tires which are designed such that they give smooth ride. The battery driven car gives less mileage although they are less polluting than the fuel driven cars. Recharging the battery car add to inconvenience.

The gasoline cars on the other hand give higher mileage but pollute the atmosphere due to the high amount of fuel they consume. The hybrid car gives greater mileage, require less refueling and cause lesser pollution.

Monday, February 23, 2009

How Electronic Ink Works

Electronic ink is used for e-books and electronic newspapers. It is a liquid containing numerous microcapsules. Each microcapsule unit is made up of white particles suspended in a vegetable oil like liquid which act as a carrier medium.

When an electric current is applied the particles appear on the surface of the microcapsule and thus the screen appears white. When an electric impulse is applied to the top of microcapsule then white particles appear on the surface and the part of the surface appears white. When an opposite current is applied then the particles float to the bottom of the surface and the screen appear dark. Thus by alternating the current, the surface can be made to appear dark or white.

The electronic ink display is formed by coating a plastic sheet with a film of ink. This is then laminated on a circuitry layer. This layer is controlled by the display driver. The charge pattern applied to the surface controlled, by the display driver; display the text on the surface of the screen.

E- Ink Corporation will manufacture electronic display for digital watches, cell phones, PDA and pagers. The electronic ink has several advantages over the computer display that are in use. Firstly if you read the electronic ink text, it appears more like the print text in newspapers and magazines. It is more comfortable to the eyes than the traditional display on the computer screen.

The electronic ink can be used any where. You can use it on the signboards, on your walls and billboard. The ink also uses less power when compared to liquid crystal display. The power use is about fifty times less when compared to liquid crystal display.

Xerox and E-ink Corporation are into the business of electronic display. Xerox came up with the electronic paper in 1970s. This electronic paper was a form of electronic ink. This is with the technology of microscopic balls. These balls are white on one side and dark on the other side. When the electric current is applied to these balls, they rotate in the electric field and produce the pattern of dark and white depending on the charge applied.

Xerox has developed a rubber sheet with embedded microscopic balls, which work on the same principle. This rubber sheet is used to produce the pages of digital books.

E-ink is extending the technology to create Radio paper, light weight in nature and it will allow you to download of the news and novel stuff just on a click.

Friday, February 20, 2009

Know about full keyboard phones

These are also called as Querty phones or smart phones. These smart phones have full functional personal computer capabilities and also with basic features found in phones. First smart phone was IBM Simon which entered the market in 1993. It had the calendar, world clock and notepad, address book, games, send and receive fax. Today smart phone are with planner, web browser, MP3 player, video and still camera and similar other features.

Smart phone give different functional feature to users. Some of them are:
  1. Managing personal information.
  2. Performing all the banking operations online.
  3. Internet connectivity which facilitate web browsing, answering and sending e-mails.
  4. Transfer of data and information between mobile and personal computer.
  5. Media player organizer
  6. Note pad
  7. Touch screen
  8. Operating system
The list is long and growing with all the discoveries. They have connectivity with the Bluetooth technology which helps them to connect with other devices. Infrared technology and wireless internet technology is also available with some smart phones available in the market.

With latest features being added to the mobile phones full keyboard phones are becoming a necessity. There are keyboard phones available in the market with different features. Blackberry available as Rim Blackberry 8800 has GPS, camera and operational based blackberry operating system. Apple iPhone has X operating system, Wi-Fi connection and Querty keyboard. Motorola Q has windows a full keyboard and a camera.

Nokia released its smart phones in 1996 as Nokia communicator starting with Nokia 9000. 9210 was first colored communicator in the Nokia series of smart phones. If you are using your smart phone regularly and performing internet functions with your keyboard phone then take some precautions to secure your phone from threats.

There is Treo Pro unlocked smart phones where the user can choose the service provider of their choice and use local sim card while travelling. This is an advantage over other type of smart phones where the user has to continue with the services of one service provider for couple of years.

Try not to post your personal number or your email address. This is to prevent your personal details and the ids from getting hacked. Download games and files only from the trusted sites so as to prevent your mobile from any virus threats or spywares. Use firewall setting for safer internet connectivity.

Smart phones or full keyboard phones are of great use to the business professionals. They can use the small device to plan and arrange for all the activities on a day. They can manage the list of all the appointments and also connect with the office and give details of the activities undertaken.

Wednesday, February 18, 2009

The Benefits of Bluetooth Phones

Bluetooth technology uses short range radio waves to connect wirelessly the mobile devices within a short range. The technology uses radio waves of up to 2.4 GHz to connect the mobile devices.

To make your mobile phone Bluetooth mobile you need a small chip and GSM or CDMA feature on your mobile. Once the Bluetooth enabled mobile come within the range they exchange authentication details and the password and connect with each other. All the devices within the range connect by Bluetooth and form a network called as piconet.

The devices once connected wirelessly can exchange the files, wallpaper, songs, ringtones and host of other information till they are switched on. The chip like the cable transmits the information. This information is picked up by the receiver chip. All this exchange of data takes place at a particular level of radio frequency.

Once devices in the piconet exchange the authentication details and password, they get connected and exchange data at a speed of 1-2Mbps.

Benefits of Bluetooth phones
  1. You can connect your mobile to your laptop and use your laptop for internet surfing, sending e-mails checking mails.
  2. Different type of accessories are available to turn your mobile into a hands free set. These devices come in the form of headsets and car kits. You can use headset with iPod and MP3 player as well. They work on battery and are compatible with your mobile as well as your computer. You can also add a car kit which you can take anywhere. Kit provides you with wireless hands free communication while you drive your car. Kit has a multifunctional button which gives multifunctional feature to receive or disconnect the call. Some kits have push button and voice buttons to attend calls and select music. These car kits become functional as soon as you start your car. Such kits provide safety while driving as you don't have to hold mobile to your ear when you receive any call.
  3. You can share information without using wire and cables.
  4. Sharing of the data can be anywhere and at anytime as you need not carry different size wires and cables.
  5. You can synchronize your calendar on your desktop or laptop. You can also synchronize the contact details and your plan on your palmtop and desktop.
  6. You can compose the email on your portable PC while you are on your way to your office. Once you reach your destination you just switch on your mobile. All messages get delivered instantly.
Bluetooth phone give you wireless hand free communication besides giving you the internet capabilities.

Monday, February 16, 2009

How a Simple Admin Error can Get Your Mail Serve Hijacked

If you have set up a mail server then I do feel that you should really be very careful. Even a single mistake can lead to the downfall of your server and you will definitely find your mail server hijacked. If you will not be careful then you will easily find out that very soon somebody has got the hold of your mail server.

Until you are ready, you will find more than thousands of spam mail being sent by the spammer and your DNS has been blacklisted and your customer mail started bouncing.

This is really one of the questions which will really be hitting your mind. There is no doubt that if you will find the mail server hijacked then you are in serious trouble. The question really is simple and straight forward and that is how you can save your self from the mail server hijacking. The answer takes us deep into cryptography. I must say that the cryptography is the only way through which you can save your mail server from hijacking. You must know that if you want to feel safe then you will have to safeguard your password.

At present there is much software available in the market which can crack the password which you will set for your mail server. Hence the question really is that how can your safeguard your password.

You must have seen the replace option in various editing software. Write any word and then follow the technique such that replaces all the r with t and so on. This is a simple way of cryptography which you will find it easier to encrypt your password. However if you want to feel more safe then you will have to use the powerful encrypting techniques like such as the RSA algorithms and the DES algorithms. These are the cryptographic standards which will definitely help you a lot in protecting your mail server.

I would again repeat that if you want to really safeguard your mail server or anything related to computer then it is quiet sure that you will have to use some very powerful cryptographic techniques. You can not really neglect that hackers have become very powerful. They can really decipher almost everything. If you will talk about the DES then you will also come to know that even this powerful algorithm has been deciphered.

This is really one of the matters which can make any body frightened. You might find your clients question that their bank are not accepting their mail and taking them as spam. You must know that this all happen because of spammers and I do feel that you will have to take the immediate steps.