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Cordless phones became widely used in home and workplaces during the early 1980s. According to The New York Times, the number of cordless phones sold in the United States grew from 50,000 in 1980 to 1 million in 1982. They quickly became popular because of their convenience and portability, despite fears that their reliance on radio signals ...
Centre for Telecommunication Research is a research-based institute at the Sri Lanka Technological Campus (SLTC) to carry out innovative, collaborative and industry-sponsored research works in wireless communications and networking. Research activities at the CTR, both fundamental and applied, mainly focus on technologies related to the ...
This timeline of the telephone covers landline, radio, and cellular telephony technologies and provides many important dates in the history of the telephone. Charles Bourseul Johann Philipp Reis Elisha Gray Thomas Edison Alexander Graham Bell Thomas Augustus Watson Tivadar Puskás Emile Berliner Charles Sumner Tainter Theodore Newton Vail
6 Sri Lanka (1948–present) ... Outline of Sri Lanka; Timeline of Sri Lankan history This page ... Text is available under the Creative Commons Attribution ...
1971 JVP insurrection: Marxist insurrection conducted by the Janatha Vimukthi Peramuna against the government of Sri Lanka. 1972: Sri Lanka becomes a republic, and country's name Ceylon is changed to Sri Lanka: 1983 24–30 July Black July by the government and Sinhalese mobs; Beginning of the Sri Lankan Civil War: 1987 29 July Signing of the ...
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The history of Sri Lanka covers Sri Lanka and the history of the Indian subcontinent and its surrounding regions of South Asia, Southeast Asia and the Indian Ocean. Prehistoric Sri Lanka goes back 125,000 years and possibly even as far back as 500,000 years. [1] The earliest humans found in Sri Lanka date to Prehistoric times about 35,000 years ...
VTech introduced the world's first 900 MHz and 5.8 GHz cordless phones in 1991 and 2002 respectively. [citation needed] As of 2014, the company was the world's largest manufacturer of cordless telephones, according to MZA (as reported by VTech). [31] [independent source needed]