Basic Components of Cellular Systems

1. Introduction There are various cellular systems in the world, such as the GSM and CDMA. The design of these cellular systems are complicated but the architecture of most cellular systems can be broken down into six basic components. In this article, I will illustrate the six basic components that can be found in most…

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The Telephone – A Brief History

During the 1870’s, two well known inventors both independently designed devices that could transmit sound along electrical cables. Those inventors were Alexander Graham Bell and Elisha Gray. Both devices were registered at the patent office within hours of each other. There followed a bitter legal battle over the invention of the telephone, which Bell subsequently…

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Your Guide to an Efficient Filing System

Your Guide to Filing An efficient filing system has become critical, but still, more often than not, filing systems are accepted without consideration to WHAT is being stored, WHY it's being stored, WHERE and HOW it's being stored. You need to ensure resources are not wasted by replacing your filing system just for replacement sake;…

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Mobile Phones – Good & Bad Manners

Just about everyone uses a mobile phone but not everyone has good manners when using one, how often have we seen someone driving along the highway, maybe even children in the back, talking on their mobile? This is not only very bad manners it is also illegal in most countries in the world. There are…

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What’s the Difference Between DS3 and T3 Bandwidth?

Do not be confused about the difference between DS3 and T3 circuits. These terms are really synonymous. Instead you should focus on what they can do for you … and the best scenarios for application. Digital Signal (DS) is a system of classifying digital circuits according to the rate and format of the signal (DS)…

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The Human Body Maintenance System

The human body consists of organs and organ systems which work together to maintain both internal and external conditions of the body. The importance of the human body’s maintenance system is indeed very high. Individuals can easily get sick due to the imbalances of the internal conditions and different fluctuations that can occur anytime due…

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How to Get a Cell Phone Contract With Bad Credit

As a former employee of a cell phone carrier I found that many consumers are skeptical of purchasing a cell phone due to their undesirable credit history. They often believe that prepaid is their only option but they would prefer a contract provider. Many people do not realize that even with subprime credit they may…

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Importance of Cell Phone Cases

When cell phones were first becoming popular back in the 90’s, not many people had cell phone cases. And, if I remember right it was a kind of luxury to possess a mobile let alone a mobile with a protective cover. However, back in the days there wasn’t a need of a cover as the…

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