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TDMA                  T ime   D ivision   M ultiple   A ccess (TDMA) : a digital wireless telephony transmission technique. TDMA allocates each user a different time slot on a given frequency. TDMA divides each cellular channel into three time slots in order to increase the amount of data that can be carried. TDMA technology was more popular in Europe, Japan and Asian countries, where as CDMA is widely used in North and South America. But now a days both techologies are very popular through out of the world. Advantages of TDMA: TDMA can easily adapt to transmission of data as well as voice communication. TDMA has an ability to carry 64 kbps to 120 Mbps of data rates. TDMA allows the operator to do services like fax, voice band data, and SMS as well as bandwidth-intensive application such as multimedia and video conferencing. Since TDMA technology separates users according to time, it ensures that there will be no interference from simultaneous transmissions. TDMA provides users with an
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Nanotechnology

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What is Nanotechnology? Nanotechnology is a field of research and innovation concerned with building 'things' - generally, materials and devices - on the scale of atoms and molecules. A nanometre is one-billionth of a metre: ten times the diameter of a hydrogen atom. The diameter of a human hair is, on average, 80,000 nanometres. At such scales, the ordinary rules of physics and chemistry no longer apply. For instance, materials' characteristics, such as their colour, strength, conductivity and reactivity, can differ substantially between the nanoscale and the macro. Carbon 'nanotubes' are 100 times stronger than steel but six times lighter. What Can Nanotechnology Do? Nanotechnology is hailed as having the potential to increase the efficiency of energy consumption, help clean the environment, and solve major health problems. It is said to be able to massively increase manufacturing production at significantly reduced costs. Products of nanotechnology will be
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Hypertext Transfer Protocol(HTTP)

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 HTTP stands for"Hypertext Transfer Protocol." HTTP is the protocol used to transfer data over the web. It is part of the Internet protocol suite and defines commands and services used for transmitting webpage data. HTTP uses a server-client model. A client, for example, may be a home computer, laptop, or mobile device. The HTTP server is typically a web host running web server software, such as Apache or IIS. When you access a website, your browser sends a request to the corresponding web server and it responds with an HTTP status code. If the URL is valid and the connection is granted, the server will send your browser the webpage and related files. Some common HTTP status codes include: 200 - successful request (the webpage exists) 301 - moved permanently (often forwarded to a new URL) 401 - unauthorized request (authorization required) 403 - forbidden (access is not allowed to the page or directory) 500 - internal server error (often caused by an incorrect s
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