What is 1G , 2G and 3G and Differences between them ?

Summary:

Telecom is growing with widespread with 3G and 4G-LTE so now . But before 3G fully reaching people in India telecom sectors are planing get 5G into India
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so 4G is getting started in India and all the devices are now coming with new 4G Supported sim.According to telecom market 5G may be launched in India by 2016.

Telecom has wide range of market in world revenue so some the leading telecom operators like china mobile or at&t there market value is around 213 billion to 200 billion . The net profit of this company is around 20.5 billion .the telecom is one of the growing industry in the world.

So right from the invention of phone still the development of mobile technologies the technology has changed the future of the world.so early a phone are based on analog signal so mainly landline was the only option for calling.so at that time we could see lot of telephone box but the development of the telephone network we can call any place in the world now.

In India we have seen the early telecom wireless technologies like 1G. 1G stands for first generation technology in telecom. 1G was basically a analog signal based telecom developed in Tokyo in 1970 so this has a capacity of 150 MHz and more.In 1G we did not have image are video support only audio.

In India we have seen 2G network in early 2008.it was started by MTNL than BSNL so in 2010 September it was given to private sectors.so in 2G we have some digital encryption technology which helped was in giving new features like SMS and MMS to mobile users.

2G came up with different version like 2.5G and 2.75 EDGE 

2.5G
This is called as Two and half generation technologies so it mainly uses the GPRS. GPRS is called as General Packet Radio Service.this has a bit rate of 50bits/sec.This 2.5G used GPRS are there core technology .

2.75G
This is called as EDGE.EDGE is called as Enhanced Data Rates for GSM Evolution. 8PSK  Encoding is used.This has high bit rate it could reach upto 1Mbit/s.

The main difference between 1G and 2G is that the radio signals used by 1G networks are analog and 2G networks are digital.

3G

This is Third generation technologies that is called as third generation of mobile telecommunications technology. so it has more bit rate compare to 2G so it has given support to new features like mobile TV and video calling to the end user.This 3G has a bit rate of around 200 bit/s and its core technologies

This 3G is also having different version

3.5
This was faster than 3g and It based on HSDPA means we can get more speed on downloading or much faster opening of the url than 3g .This has gives us speed of 384 kbps but where as in 3g it gives 128 kbps.

3.75
This 3.75 is called as Evolved HSPA (also known as HSPA+).so this new standard gives a bit-rates of 337 Mbit/s in the download and 34 Mbit/s in the upload.

The above all the technology's  where using the same technologies used right from 1G so all this system us are going to be closed as we have reached a point where we need internet speed of 1Gbs.

4G

4G is fourth generation that is fourth generation of mobile technology we have seen the 3G all over the market right now and we are planning to get 5G into india. A 4G system is more or less same as 3G in addition to the normal voice and other services of 3G gives mobile broadband Internet.

For example we use laptops with different types wireless modems dongles or smartphones.so using this 4G we will be having the HD mobile tv are hight speed Games internet games and we are moving towards cloud so fast upload and download of cloud drives.

5G (5th generation mobile networks)

5G provides more Data rates of  MB's to GB per second for thousands of users.
This 5G can provide 1 GB per second simultaneously share the data to many user at work place or at home.
5G can handle huge number simultaneous connections compare to 4G and it can handle hunders to thousand connection at a time.
Its has high spectral efficiency than 4G.
High Coverage  compared to 4G
High  Signal strength