суббота, 4 апреля 2020 г.

Mobile phones



Nowadays we can't live without our mobile phones,  though they've not really been in existence for very long. In fact, mobile phones as we know them today have only been around in the last 20 years. Mobile phones, particularly the smartphones that have become our inseparable companions today, are relatively new. However, the history of mobile phones goes back to 1908 when a US Patent was issued in Kentucky for a wireless telephone.
Mobile phones were invented as early as the 1940s when engineers working at AT&T developed cells for mobile phone base stations.
The very first mobile phones were not really mobile phones at all. They were two-way radios that allowed people like taxi drivers and the emergency services to communicate.
Instead of relying on base stations with separate cells (and the signal being passed from one cell to another), the first mobile phone networks involved one very powerful base station covering a much wider area. Motorola, on 3 April 1973 were first company to mass produce the the first handheld mobile phone.


Evolution of the Mobile Phone


Internet



The Internet is a worldwide, publicly accessible series of interconnected computer networks that transmit data by packet switching, using standard IP (Internet Protocol). Now Internet has become one of the most important part of our life. Most of us cannot think of spending one day without internet. Internet has made our lives much easy.
International Internet Day is celebrated worldwide, every year on 29th of October. Since the year 2005 the International Internet Day has been famously celebrated to commemorate a momentous day in the history of telecommunications and technology. This was the event of the sending of the first message, first electronic message which was transferred from one computer to another in 1969. This was situated in California, in the USA. Today the International Internet Day is also an on-line project germinating from the society, of the society and for the society. The International Internet Day project is open to everyone and anyone just as access to the internet is open and free for everyone. The International Internet Day thus celebrates this grand democratic fervor which in essential is linked to this idea of liberation, where everyone is afforded an equal opportunity and an equal advantage to share of services, which connect the world to each other.