Communication:
Communication is a crucial factor which allows humans to connect with every other round the arena.From the very early a long time, humans thought of having conversation methods to hook up with the rest of the arena. Early people used symbolic formations, sounds to explicit their feelings to others &eventually they started to speak. 
 First Generation Mobile Communication (1G)
*1G or 1st era cellular phones have been the earliest mobile systems that have been advanced in early 80’s. 
*In the early eighty’s, the first era telephones were developed to increase the performance of the mobile technology.
*The idea turned into provide you with the development of the fast ranged radio phones. At early 70’s,
*In the early eighty’s, the first era telephones were developed to increase the performance of the mobile technology. 1G phone also are analogue & the main development performed was increasing the range of the transmission. So that the verbal exchange can be performed over a massive vicinity, than the walkie-talkie

 Features of 1G Mobile Technology:
*Analogue system.
*Mobility
*Circuit switched technology.
*Basic voice calls handiest.
 Second Generation Mobile Technology (2G)
After the 1st Generation mobile generation, at early 90’s, the 2G or second Generation cellular networks were mounted. It turned into advanced as a solution for troubles arose in analogue systems. Therefore digital encryption of the voice calls became utilised in 2G era. That method the virtual mobile communication started out.
 Along with the digital advancement, 2G got here with any other  advantages, over the 1G cell phones. 2G systems have been notably extra efficient on the spectrum making an allowance for a ways greater mobile phone penetration ranges & also delivered the statistics offerings for cell phones. The capacity to send text messages
Another enhancement in 2G era is the 2.75 G & it's far the street to the 3G era.

Third Generation Mobile Generation (3G)
*3rd Generation or the 3G mobile technology is the present day state inside the improvement of wireless communication technology. 
*The 3G generation turned into first used in Japan in 2001, as they did now not use the 2.5G technology; for this reason they wished a technique to bridge the distance & face the capacity requests. Since then it advanced lots by way of adding many sophisticated capabilities for the users.
* 3G uses a number of high tech infrastructure networks, handsets, base stations, switches & other devices to allow cellular to provide high speed net get entry to, statistics & CD first-class offerings. Currently, over 80% of the world populace issuing this 3G cellular era for his or her communication purposes.

Features of 3G Technology:
* TV streaming
* multimedia
* videoconferencing
*web surfing
* electronic mail
 *navigational maps
Fouth Generation Mobile Generation(4G)
*Fourth era wi-fi (4G) is an abbreviation for the fourth technology of cell wi-fi standards and replaces the 0.33 generation of broadband cell communications. 
*The standards for 4G, set by using the radio sector of the International Telecommunication Union (ITU-R), are denoted as International Mobile Telecommunications Advanced (IMT-Advanced).
*The premise behind the 4G provider imparting is to supply a complete IP based solution wherein multimedia applications and offerings can be brought to the user every time and everywhere with a excessive records price, top rate fine of carrier and excessive protection.

Features of 4G Technology:
*Able to dynamically allocate community sources in a mobile
*Able to aid smooth handover
*Able to provide excessive first-rate of service (QoS)
*Based on an all-IP packet-switched network