Saturday, July 3, 2010

Interesting Facts about Cell Phones

We’ve got some interesting cell phone facts for you:

Did you know that a cell-phone is actually a complicated radio? Interesting right?

Cell phone (telefone celular) is a wireless, portable, long-range, electronic telephone, which during travel can seamlessly change antenna connections, from one radio reception cell to another radio reception cell, without dropping or losing the ongoing call.

Besides the standard voice function of a telephone, latest cell phones (telefone celular) as all of us know have features such as SMS for text messages, MMS for multimedia messages, radio, games, internet connectivity for email, browsing, blogging, music (MP3) playback, memo recording, built-in cameras and camcorders, ringtones, personal organizers, Push-to-Talk (PTT), Bluetooth and infrared connectivity, call registers, streaming video, downloading video, video call, and also serve as wireless modems for PCs that can be connected to the Internet.

The power in a cell phone (telefone celular) is obtained from rechargeable batteries, which can be recharged from the mains, a USB port or a cigarette lighter port in an automobile. Nickel Metal Hydride were the most common types of batteries, which due to the "memory effect" (the user can recharge only when the entire battery is drained off) were replaced by Lithium-Ion batteries, which did not suffer from any memory effect.

Cell phones (telefone celular) came into existence because of the invention of hexagonal cells in 1947, for the base stations by Bell Labs engineers. This was further developed during the 1960s by Bell Labs. During a call, the channel frequency could not be changed automatically from one cell (base station coverage area) to another cell (base station coverage area) as the person traveled from the area of one cell to the area of another cell. Amos Joel of Bell Labs invented a breakthrough invention and called it as the `call handoff` by which the channel frequency could be changed automatically from one cell to another cell, during the same call, as the mobile user traveled from one cell to another cell. Due to their heavy construction, these phones were used mainly in automobiles.

The first practical cell phone in a non-vehicle setting, and which could be handheld, was invented by Martin Cooper, who made the world`s first handheld cell phone (telefone celular) call on April 3, 1973.

The technology by which the cell phone (telefone celular) works depends on the mobile phone operator; however, all of them use electromagnetic radio waves, which are in touch with a cell site (base station). The base station is composed of several antennas which are mounted on a pole, tower, or building. Cell sites are spread at a distance of 5 to 8 miles (approx. 8 to 13 km) from each other. The low power transceiver from the cell phone transmits the voice and data to the nearest cell site. During movement, the cell phone will "handoff" the information to other cell site. Mobile phone operators use many technologies to maintain the smooth stream of digitized data from the cell phone to the cell site and vice versa.

The wireless telephone technologies are grouped under heads known as generations, starting from zero generation or 0G. The current generation going on is 4G; however, there are old cell phones (telefone celular) that still operate on 1G, 2G, and 3G technologies.

The difference between a walkie talkie and a cell phone is that walkie talkies can communicate as far as 1000 ft. and cell phones can transmit several miles away from the cell tower.

The first truly mobile phone (one that didn’t require its own case for transportation) went on sale in 1985.

There are half as many active cell phones on the planet as there are people

Korean teenagers can be called text messaging fans. They send over 200,000 text messages a year, that’s about 60 texts per day.

Mobile phones are being used around the world to notify people of upcoming disaster and emergencies. Phone companies in countries like Finland and Japan, where earthquakes are very common, are already integrating such feature. What’s more, the service would be absolutely free of charge!

As a convenient method of vote delivery, the Estonians now using their mobile phones. It also serves as a very convenient means to show their personal identification.

In many cafes and pubs around the country, you will find waiters taking your order on their cell phones. Apple showrooms across the World are adopting this method to eliminate the use of paper entirely. So buy an Accord Mobile and you can contribute towards saving the trees!

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