Radio Frequency Identification (RFID) is a somewhat new technology that is used for automatic identification. Using this technology, data can be remotely retrieved through remote devices called RFID tags. Also known as transponders, RFID tags are chips which are attached or may be inserted into products, animals and even people. Radio waves are used to easily identify these chips and the information contained within. The transponders are normally made of silicone and are attached with antennas.

RFID tags are sometimes called transducers and are also known as proximity cards. They are available in three varieties: active tags, passive tags and semi-passive tags. Power is required for an active RFID system but no source is necessary for the passive type. Radio waves read information and instructions that are stored on RFID tag chips. These radio waves can read such information from up to 90 feet from where the chip is installed.
In the beginning RFID was used to identify dogs, cats and other pets as a means of permanent identification. It was said to be used in case the animal was lost or stolen. In today's world, RFID systems are used in almost every industry including but not limited to medicine, shipping and receiving, the automobile industry and libraries as well as being used in electronic devices and musical instruments.

The main purpose of RFID tags is to transfer data or any other information through particular mobile devices. These mobile devices are called chips and the RFID reader can read and process information according to the application.

RFID systems use an embedded in inexpensive tag that consists of a transponder containing a digital memory chip. Each tag has its own unique product code. The RFID transceiver will consist of an antenna, an interrogator as well as a decoder. When the transceiver remits a signal, better known as radio waves it activates the RFID tag. At this point information can be read or written into the memory chip. When a RFID tag makes its way through the electromagnetic field of its transceiver, it will detect the reader's activation signal. The point after the data has been read; the decoder can decode the data and pass it on to the host computer. The host computer will then process the data using Physical Markup Language (PML).


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Science has revolutionized the globe. Nowadays we are seeing technologies everywhere and the world is getting more advanced day by day. To carry out along with the earth in the race of life we need to know about the latest processes. One of the greatest new method of science is telemetry that is discussed below.

Many readers of this article might be wondering what telemetry is. If you are looking to know basic information about telemetry than keep reading this article as it will certainly help you in understanding that what telemetry is and how we are using telemetry in promoting technology. There are so many features of telemetry that scientists are using for mankind. Some of the consequential features are outlined as under.

Telemetry is basically a latest technology that allows us to measure and to give an account of the knowledge through wire or by other means. Usually this technology is being used as wireless medium of data relocation through infrared, but it can also be used through telephone or radio etc. There are so many things that can be done through this technology some of them worth mentioning things are mentioned below.

This technology can be used in intensify law as the law enforcers can easily track out any wanted person through this and can also report the other police officers about any missing prisoner or person. Telemetry can also be used to seal out an area, through this law enforcers will easily come to know if anyone will enter in the prohibited area. Through telemetry, police force can easily draw attention to the stolen car regardless of the fact of where the car is. They can easily halt the engine of that car with the help of GSM tracking system which is actually based on Telemetry.

Telemetry has also revolutionized the medical field through many aspects. Usually telemetry is used in the ICUs and CCUs for serious patients so if the condition of patient gets worst nurses and doctors will get an alert intentionally through the telemetry system. By this way telemetry is helping a lot in the medical field and now it isn't necessary that a nurse should stay in the room of the patient.

Telemetry also plays a vital role in the agricultural field, because cultivating crops totally depends on the weather conditions and wireless weather stations plays a crucial role in developing good crops. These wireless weather stations are all of telemetry. Telemetry helps in measuring that what will be the weather conditions and also helps to inform others about the future conditions. In this way telemetry is useful and essential for raising of crops and livestock.

These are some features of telemetry through which we can easily ascertain how useful telemetry is. No doubt that telemetry is one of the best innovations by the innovators. Through the help of this technology we are now able to take precautionary measurements as we can easily predict by measuring the stipulation conditions and circumstances. Therefore, it is proved that telemetry is not less than a prayer said over someone for us all and we need is to use it in a right manner.



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Computers and the Internet have changed and continue to change the world. The computer is the vehicle that is introducing the world to technological advancements and medical and social achievements. Computer monitors are the windows of this new world and they continue to improve in quality and performance. The computer monitor of ten years ago is not the same visual display unit it is now, but it's still a piece of electrical equipment which can display a wide range of images from the video output of different computers, without creating a permanent record. The display device used to display images today is a thin film transistor liquid crystal display also known as TFT-LCD. The older monitors used a CRT or cathode ray tube.

Measuring computer monitors is a bit confusing. The measurement is based on the CRT television method, which was used when round picture tubes were popular. They were circular, so they only needed a diameter measurement to describe the tube size. When CRT tubes were manufactured as rectangles this method was still used, so the distance between two opposite corners is given as the screen size, even though it does not take into account the aspect ratios differences of monitors with the same diagonal size. The shape of a diagonal area decreases as it becomes less square, so the measurement system is a not accurate, in terms of square inches for monitors with the same diagonal size. Another issue with screen size is the size of the imaging element, which is distorted by media advertising campaigns. Viewable size is more important than measuring the image element size, which can be hidden behind the case's shroud.

Image technology continues to improve. TFT-LCDs are the most popular monitors, the old passive LCDs had a slow response time and the contrast was poor. They started to be replaced in the mid 1990s. Other types of visual displays include the Penetron and the Plasma Display along with the old CRT.

The LCD is light, compact and rugged and there is no geometric distortion, but it has a low contrast ratio, uneven back lighting and slow response times, which can cause ghosting. The Penetron Military Aircraft Display has high contrast ratios and is extremely sharp, although there are only four color displays. The Plasma also has high contrast ratios and a high speed response, excellent color and a low black level, but it has lower resolution on a large screen and there is a noticeable flicker when the display is viewed close range.

Today's computer monitors can display an infinite number of colors by continuously changing the intensities in the RBG color space, which is the red, green and blue analog video signals. New connectors are replacing both analog and digital signals with digital only video signals, which have integrated data and video connections. Other new features include multiple monitor capabilities, which can show the identical image called mirroring and extension monitoring, which shows different images but it does require extra hardware and software support. There's no doubt than computer monitors will continue to improve in quality as well as functionality. The touchscreen technology is opening the doors for another giant leap in the virtual display industry.



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The computer has become an important communication tool for people around the world. The amount of hours spent looking at a computer monitor continues to increase as the Internet expands and more information is revealed. Whether the computer is used for business or pleasure, the monitor is the connection that brings all information to life and expands our awareness. Monitors are becoming more sophisticated. The old CRT tube monitors were good at the time, but the new TFT-LCD monitor technology is bringing the world into our homes with vibrant color and exquisite clarity. Good monitor images bring the mundane and boring aspects of work alive and make pleasure more pleasurable. There are several choices when it comes to monitors, so it's important to do some research and identify as many monitor options as possible, before deciding to make it part of your daily work or entertainment activities.

Screen size is one of the most important aspects of a monitor; the larger the screen the better, unless there is a space restriction of some kind. Widescreen monitors are the rage at the moment and 22" and 24" LCD models are in big demand. There are several manufacturers that have focused on providing the latest in monitor technology. Almost all of them make a good product, but since a monitor becomes a personal virtual display tool, it's a good idea to find a manufacturer that has a good reputation for making the type of monitor you need. Color and image quality are priorities, so pixel resolution and image display are extremely important. The TFT LCD technology is great for a small business or for the home environment. A TFT LCD monitor eliminates the radiation that plagues CRT monitors and they consume less power. The colors are more vibrant and they take up less space. The viewing area is larger and they can be integrated with other monitors and can display the same image or a different one, simultaneously.

The new widescreen LCD monitors can be integrated with webcams, so you can record videos or chat with friends or even hold business meetings. Other monitors have iPod docks and integrated speakers. A 27" screen is perfect for movie enthusiasts, video editing professionals and publishers. When a 27" screen is used on a daily basis, it's hard to work on a smaller screen. Some of the new digital monitors offer landscape pivot viewing, 178 degree viewing and a 1000:1 contrast ratio. Other models have USB hub features bundled into monitors, so games as well as music can be enjoyed. Navigating to adjust the brightness and the contrast is easy on some advanced monitors, they have a menu that enables the user to change settings and there is an auto-configuration button so the monitor can align and configure itself while using an analog VGA connection. There's also a feature that changes the signal input source. Some new monitors have 360 degree movement and can tilt forward and back 20 degrees and some even have height adjustments.

Monitors are changing as fast as computers and manufacturers will continue to add new features and functions that will improve the quality of our work and entertainment experiences.



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