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 The OSI is a reference model which most professionals use to describe networks and network applications.
The OSI was originally intended to describe a complete set of network protocols of production, but the cost and complexity of the process into question the government's definition of the OSI network project unviable. In the time that the OSI spent arguing designers who would be responsible for what, TCP / IP has conquered the world.
The seven layers of the OSI model are: Layer Name
7 Application
6 Overview
5 Session
4 Transport
3 Network
2 Data Link
1 Physical
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 3GPP (1) is the new standard for the application of technical specifications for global system for mobile third generation. 3GPP should serve as a basis for several standards including mobile phone covers specifications: GSM ( including GPRS and EDGE), UTRAN, W-CDMA, UMTS and FOMA. Behind these acronyms, technical solutions adopted by different players in mobile telephony. 3GPP specifications are based on standard MPEG-4 and was designed to provide multimedia content to cell phones and PDAs. 3GPP support in QuickTime 6.3 format envelope AAC (Advanced Audio Dolby), MPEG-4, the H.263 video (a codec for videotelephony), the 3G (TX3G) and the native file format 3GP .
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 The CDMA (Code-Division Multiple Access or division multiple access coding) is the most successful technical multiplexing, intended to be used on networks of third generation mobile telephony. While previous techniques multiplexing frequency (FDMA) and time division multiplexing (TDMA) is essentially to divide a physical quantity (a bandwidth of frequencies or the time) in "niche" individual, CDMA does not Prior static allocation of these resources and techniques similar to computer transmissions packet. The words of the interlocutors are digitized, compressed and encrypted. Techniques fine allocation of frequencies for base stations adjacent cells can allocate, if necessary, all frequencies of a few communications ... or tens. Nevertheless, there are several variants of CDMA. One on which the UMTS standard is called W-CDMA. The Japanese have adopted for their third-generation network already in service, Foma. As often, Americans prefer to use in this case a CDMA standard promoted by some manufacturers, rather than fall to international standards.
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A tank equipped with a telemetry system is able to think for itself. It can inform Primagaz the amount of gas you have left and say when it will fill. A gauge on the top of the tank regularly monitors the content. A device that "reads" the level of gas in the tank (installed above the tank) sends a signal via a mobile phone to relay our computer and informs us of the level of your gas tank. We can provide a delivery at the right time.
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 Digital watermarks are invisible or visible marks on an electronic image, music, video, text, or any material that serve the purpose of protecting the copyright of a material's owner. In this sense, digital watermarks are like the watermarks used in counterfeit currencies for security. Stenography can also be applied in digital watermarks if one wants to make the watermark less detectable.
A digital watermark is primarily a transparent image overlaid on the actual image. In some cases, though, digital watermarks can not be detected by the human eye and includes important information about the owner such as the name and the date.
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 A live CD is a bootable CD-ROM disk that loads an operating system and has the ability to perform a specific set of tasks or functions.Many free operating systems, such as with many Linux, FreeBSD, and OpenBSD distributions, provide a live CD media set so people can test whether the operating system will run properly on their system hardware, test whether the operating system meets their needs, or for purely learning purposes. In some cases these live CD solutions require some sort of additional removable storage, such as a floppy or thumb drive, to retain important configuration data, since CD file systems are not easily rewriteable.
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 BREW is an acronym for Binary Runtime Environment for Wireless. It was originally introduced in January of 2001 as an application development platform and was originally used for wireless phones. Qualcomm was the company to set up this standard and it should be noted that although it was used for CDMA cellular phones, today it can be used for GSM, GPRS and UMTS. BREW essentially allows consumers to download and use applications on their mobile phones. These applications can include chat programs, email, location positioning, games, etc. ...
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