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History of Mobile Phones

The Electromagnet was invented in 1825 by William Sturgeon, a British electrician. This was followed by the invention of the electric telegraph by Samuel Morse that transmit electrical signal over wires and is translated to message. The Telephone, a device that could transmit speech electrically was invented by Alexander Graham Bell in 1876.
Radio technology began as wireless telegraphy in 1866 by Mahlon Loomis, an American dentist. The Radio, a two way communication device developed from the permanent installations in vehicles to bag phones and the backpacked walkie talkie developed by Motorola in 1940s to hand held two way Handie talkie (HT) It was the size of a man’s telephone and Radio technologies combined to bring Radio Telephone.Radio telephone appeared in Europe in1926.
Soon, it was realized that when mobile phones are connected to smaller and lower powered base stations arranged in cellular pattern and with frequency reuse there is an increase in the number of people who can talk at a time i.e an increase in the traffic was how the cellular phone started in 1947. The electronics of cell phones was developed by Richard H. Frenkiel and Joel S. Enjel of Bell lab in the 1960s.
Most phones were analog in the 1980s. They are mostly digital now with ease of signaling,lower level of interference and increased capacity.
GSM (Mobile System for Mobile communication)
Lack of standardization for the various systems developed resulted in compatibility problems especially with the development of Radio technology. To address this problems, GSM, a standardization group was established in 1982 to create a common European mobile telephone standard that would formulate specifications for a pan European mobile cellular Radio system. It was hoped then that other countries would join the partnership.
FURTHER DEVELOPMENTS.
1G (First generation) These were analog, used for voice calls only.
2G (Second generation):These were digital, provided caller identity, text messaging, avoid interference and drop calls and could handle a large number of calls.
2.5G Between 2G and 3G. Provided faster services than 2G and can access the internet.
3G Suitable for high speed data application, traditional voice calls, provide navigational maps, web browsing, fax, paging, email, video conferencing, multimedia, TV streaming.…

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Follow This Great Article About Cell Phones To Help You

There’s much to learn about cell phones. factory reset samsung From purchasing a cell phone to using its features, you must have proper knowledge. These suggestions should provide a jumping point for your knowledge.

If your cell phone is acting slowly after an operating system upgrade, it may be time for a replacement. This is especially true for older phones. It may be so old that the new operating system is too memory intensive to operate smoothly on your phone. Talk with a carrier to see what your options are.

If you see a LTE or 4G signal, steer clear of videos. Your cell phone probably has an allowance for the data you can use. You can burn your allowance fast through video use alone, so your bill might rocket right up. If you’re going over your allowance often, you’re on the wrong plan.

Consider purchasing a used phone if you are looking to upgrade before your contract allows you to. This is often less expensive than buying new, and you will not be locked in to a specific contract period. Just make sure your provider supports the phone you want to buy, and that you can easily add it to your plan.

Give your phone a reboot every one or two days. As you are constantly using features on your phone such as apps, email and browsers, your phone is storing cached information. Much of this data is unnecessary and can be purged through a reboot. This will free up system resources and clear potential glitches.

Make certain that you have a charger for your battery available at all times. If you have one in your car, home and office, you will be able to recharge your phone any time you need to. Certain uses take a lot of battery power. Avoid losing your battery power this way.

When purchasing a brand new cell phone, be sure to take time and do your research. Hold various models in your hands and try them out. In this way, you stand a far better chance of buying a phone you actually love to use.

Charge your phone with a power booster or a pack that attaches to your cell phone. This device will have a full charge already so you can charge your phone on the go and have backup energy when you need it most. You will just need to charge this pack in advance for this to work.

Avoid letting your phone battery completely discharge prior to recharging. The battery in your phone is designed for periodic recharging. Draining them completely reduces the amount of charge they can carry. Instead, charge it nightly.

Purchase a quality case to protect your phone! Shattering your iPhone’s glass is a costly repair. Companies like Otterbox offer great cases that offer a high level of protection from accidental damage. One great model, in the top of its class, is the Defender.

The more you know about phones, the better you can use one. Invest time in learning all you can for best results. Start with these tips, and make sure that you continue to learn all that you can.…

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