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Wireless Communications?

                      


1.       Pager Services: -Pager communications was successfully launched in India in the year 1995. Pagers were looked upon as devices that offered the much needed mobility in communications, especially for business. Motorola was a major player with nearly 80% of the market share. The other companies included Mobilink, Pagelink, BPL, etc. pager companies in India offered their services in regional languages also.


2.       Mobile Communications: -A basic mobile phone (cellular phone or cell phone) is a device that can make and receive telephone calls and send text messages. In 1991, the second generation (2G) cellular technology was launched by Finland, which sparked competition in this sector. Ten years later, in 2001, three generation (3G) was launched in Japan. In early 2011, 4G mobiles were released by Motorola, HTC and Samsung.

3.       Broadband Communication: -After U.S.A, Japan, India stand third largest users of which 40% of internet is used via mobile phones. India ranks one of the lowest providers of broadband speed as compared to countries such as Japan, Norway, etc.

4.       Next Generation Network (NGN): -Next Generation Network, multiple access networks can connect customers to a core network based on IP technology. These access networks include fiber optics or coaxial cable networks connected to fixed locations or customers through Wi-Fi as well as 3G networks connected to mobile users.


5.       Indian Satellites: -India has launched more than 50 satellites of various types, since 1975. The organization working for Indian satellites is the Indian space Research Organization (ISRO). Out of 21 satellites launched in the course of the Indian National Satellites (INSAT) programme, 11 are still in operation.

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2019 Board Paper Solution

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SECRETARIAL PRACTICE (S.P) 2019 25th February, 2019

HSC XII PHYSICS 2019 25th February, 2019

CHEMISTRY XII HSC SOLUTION 27th, February, 2019

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HSC MATHS PAPER SOLUTION COMMERCE, 2nd March, 2019

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SSC ENGLISH STD 10 5TH MARCH, 2019.

HSC XII ACCOUNTS 2019 6th March, 2019

HSC XII BIOLOGY 2019 6TH March, 2019

HSC XII ECONOMICS 9Th March 2019

SSC Maths I March 2019 Solution 10th Standard11th, March, 2019

SSC MATHS II MARCH 2019 SOLUTION 10TH STD.13th March, 2019

SSC SCIENCE I MARCH 2019 SOLUTION 10TH STD. 15th March, 2019.

SSC SCIENCE II MARCH 2019 SOLUTION 10TH STD. 18th March, 2019.

SSC SOCIAL SCIENCE I MARCH 2019 SOLUTION20th March, 2019

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XII CBSE - BOARD - MARCH - 2019 ENGLISH - QP + SOLUTIONS, 2nd March, 2019

HSC Maharashtra Board Papers 2020

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