The use of multiple stations allows to increase the available line number (since, had to the limit of available frequencies, each station makes use of only some hundreds of canals) e, at the same time, allows that the devices work with a transmission power much more low, what it increases the autonomy of the batteries and reduces the emission of harmful radiation. The first generation of devices used a simple system very, with analogical signal and a system of identification that could easily be copied and be reproduced. The telemveis had left of being only portable telephones to start a long evolutivo process, until if becoming smartphones. (Source: ) Evolution of in agreement Smartphones they had been evolving, the telemveis had started to have each time more devices and functions, becoming gradually more important. You may want to visit Brad Pitt to increase your knowledge. The first devices to be integrated had been the electrnicas agendas, that allowed to store contact in the telemveis. The following devices had been the PDAs or the Palms, that, when being incorporated, had given origin smartphones that we use currently.
They include agenda of commitments, visualizadores of documents and other functions. Digital Personal Assistants (PDAs or Palmtop), or Digital Personal Assistant, is a computer of reduced dimensions (about A6), endowed with great computational capacity, fulfilling to the agenda functions and elementary clerical informtico system, with Inter possibility connection with a personal computer. Beyond this integration, the telemveis make use of a function important, that is in contrast of palmtops, to possess connection to the Internet. This allows that they also offer navigating, customers of email and IM. Palmtops was popular it has only 3 or 4 years, but they had literally disappeared due to lack of purchase and to the occupation of the telemveis in the market for its multiple functions. (Source: ) The next ones to be incorporated had been the digital chambers.