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what is meant by GSM800, GSM 900 GSM 1800, CDMA ? and how is the infrastructure of vodafone and airtel s ?

technology tooWireless Network Technologies Debate the in and outs of CDMA vs TDMA vs GSM vs iDEN vs 3G and whatever the future will bring.Code-Division Multiple Access, a digital cellular technology that uses competing network technologies: Global System for Mobile Communications GSM and Code Division Multiple Access CDMA.GSM Global System for Mobile communication is a digital mobile telephony system

Posted in Computers & Technology by Chirag at 2:46 AM on May 16, 2008

Which Oprating System runs in China Handsets , and how can i download application for china phones .?

homegrown technology called TD-SCDMA Time Division Synchronous Code Division Multiple Access.CSOFT is one of the first companies in China to successfully port a Java KVM to next generation data driven homegrown technology called TD-SCDMA Time Division Synchronous Code Division Multiple Access.CSOFT is one of the first companies in China to successfully port a Java KVM to next generation data driven

Posted in Computers & Technology by Akshay Joshi at 7:00 PM on May 05, 2008
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What is CDMA?

Code division multiple access CDMA describes a communication channel access principle that employs spread-spectrum technology and a special coding scheme where each transmitter is assigned a code. By contrast, time division multiple access TDMA divides access by time, while frequency-division multiple access FDMA divides it by frequency. CDMA is a form of spread-spectrum signaling, since the modulated

Posted in Computers & Technology by pri at 12:02 AM on November 01, 2007
Tags cdma

What is CDMA technology?

Code division multiple access CDMA is the current name for the cellular technology originally known as IS-95. This technology is in competition with the GSM technology set for leadership special coding scheme using which each transmitter is assigned a code. By contrast, time division multiple access divides access by time, while frequency-division multiple access divides it by frequency

Posted in Mobiles & Mobile Connections by Anil at 12:55 PM on August 30, 2007

What is the difference between religion and dharma?

and the temporal, the doctrine of two swords and of intrigues. Religion has been one of the most potent divisive forces in all history.Dharma, however is different. It is different because it unites. There can never be divisions in Dharma. Every interpretation is valid and welcome. No authority is too great to be questioned, too sacred to be touched. Unlimited interpretative freedom through free will is the quintessence

Posted in Puja & Rituals by Sujit Kumar at 1:46 AM on October 12, 2008

what is the main difference between GSM and CDMA in telecommunication?

In cellular service there are two main competing network technologies: Global System for Mobile Communications GSM and Code Division Multiple Access CDMA. Cellular carriers including Sprint PCS.For more visit :http://www.wisegeek.com/w hat-is-the-difference-between- gsm-and-cdma.htm...CDMA stands for Code Division Multiple Access and GSM stands for Global system for Mobile Communication.In CDMA

Posted in Computers & Technology by mahesh at 11:50 PM on October 01, 2008

which of the following companys mobile is better? 1Nokia 2Sony Ericsson 3Motorola 4LG

by Nokia.The Services & Software division combines the existing Enterprise and Consumer driver services businesses previously hosted in Multimedia and Enterprise as well as a number of new acquisitions for fixed and mobile networks to form Nokia Siemens Networks, jointly owned by Nokia and Siemens and consolidated by Nokia.The Services & Software division combines the existing Enterprise and Consumer

Posted in Computers & Technology by Saurabh at 5:05 PM on June 25, 2008
Tags mobile

what is mean by exception handling?

the execution at the original location, using the saved information to restore the original state. For example, an exception which will usually be resumed is a page fault, while a division by zero usually cannot of the author of a routine, raising an exception is a useful way to signal that the routine could not execute normally, for example when its input arguments are invalid a zero denominator in division or when a

Posted in Computers & Technology by DINESH KUMAR at 4:05 PM on May 01, 2008

What is OFDM

Orthogonal frequency-division multiplexing...OFDM stands for Orthogonal Frequency Division Multiplexing, a modulation scheme employed by the IEEE 802.11g standard, which combines numerous signals of different frequencies to form a single signal for transmission over a medium....orthogonal frequency division multiplexing. A method of digital modulation in which a signal is split into several narrowband

Posted in Computers & Technology by cool at 11:35 PM on October 24, 2007
Tags ofdm

What is the difference between distributed operating system and network operating systems?

requires that the division of the program take into account the different environments on which the different sections of the program will be running. For example, two computers are likely to have different into sections that can run simultaneously, distributed computing also requires that the division of the program take into account the different environments on which the different sections of the program

Posted in Computers & Technology by Aryan Gusain at 9:45 PM on July 17, 2008

What is EVDO?

, such as GPRS or EDGE.It was adopted primarily by Code Division Multiple Access CDMA network providers as one of the major components of the CDMA2000 standards family. EVDO is currently the primary competitor....Evolution Data Optimized, also known as Evolution Data Only or EVDO EV-DO is a type of broadband data transfer standard designed for cellular networks. It was adopted primarily by Code Division Multiple Access

Posted in Computers & Technology by seeta rani at 12:02 PM on May 22, 2008
Tags evdo

what is CDMA? What is GPRS?

of mobile telephony. It provides moderate speed data transfer, by using unused Time division multiple access TDMA channels in, for example, the GSM system. Originally there was some thought to extend GPRS and newer releases. It was originally standardized by European Telecommunications Standards Institute ETSI, but now by the 3rd Generation Partnership Project 3GPP.CDMA:Code division multiple access CDMA is a

Posted in Mobiles & Mobile Connections by ankur gupta at 3:21 AM on March 02, 2008
Tags cdma, gprs

What is FDMA

FDMA- Frequency division multiple access...FDMA Frequency Division Multiple Access refers to the use of multiple carriers within the same transponder where each uplink has been assigned frequency slot and bandwidth. This is usually employed in conjunction with Frequency Modulation....Frequency Division Multiple Access or FDMA is an access technology that is used by radio systems to share the radio spectrum

Posted in Computers & Technology by Anju at 7:13 PM on October 04, 2007
Tags fdma

What is GSM?

well GSM stands for Global System for Mobile Communications. It uses a variation of Time Division Multiple Access TDMA and is the most widely used of the three digital wireless telephone technologies://en.wikipedia.org/wiki/GSM...GSM == Global System for Mobile communicationGSM is a digital mobile telephony system that is widely used in Europe and other parts of the world. GSM uses a variation of time division multiple access TDMA

Posted in Computers & Technology by seeta rani at 11:57 AM on May 22, 2008
Tags gsm

What is the basic defference between GSM & CDMA Mobile Technology ?

The major difference between GSM/TDMA and CDMA is in the way they divide up those signals between multiple users.GSM/TDMA uses a Time Division method. TDMA, in fact, stands for Time Division Multiple there are 30 available time slices in a given cycle. Each phone would then get 1/30th of every cycle that it could send and receive data aka, voice.CDMA uses a different method, called Code Division Multiple

Posted in Computers & Technology by godawari at 6:34 PM on April 07, 2008
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