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GPS stands for Global Positioning System. There is a system of satellites and receivers, allowing the people and institutions to learn how their exact position on earth. The heart of the system is based on 24 satellites into orbit, around the Earth twice a day. The devices are equipped with GPS receivers from at least some of the satellites and are in a position to the position very carefully. The first GPS satellite was launched in 1974 and the 24th was founded in 1994. The system is used by the US-defense and the use of the system is free for all people. New satellites are launched regularly replace the aging. As the technology has improved, the cost of GPS devices went, while the accuracy increases. The small portable GPS receivers have become very affordable, and the accuracy is amazing. Accuracy depends on several factors, but it may well be that a few meters! Additional land-based facilities can be used for improving the accuracy, if high accuracy is required.

Advances in communications brought great changes in the way we humans live. It has always been the case with letters, telephone, mobile phone, Internet, etc. There is also a large space has made changes that I write this article, I will speak, fax, Internet, fax, technology is the standard for the transmission of documents to the world.
Internet fax and that the power of the Internet for the transmission of faxes in digital form, you can obtain, and you do not need a fax machine to do all that. Fax traditional necessary to the document to scan them at another machine. The process is similar to the Internet, but without the need for machines and paper, and with a better result.
Fax traditional process, two fax machines and a telephone line, the process has been described above, and you could not receive or send a fax at once. It was a long process.
The Internet has changed, and that is much more flexible and faster, because to begin, you must not print the document before you send it, you can find directly from your computer. There are programs in which Internet Fax success with editors such as Microsoft Word, which allow you to send a fax from the application itself