🤔 How it works …….. ⁉
How Does the Internet Work?
The first publicly available internet service in India was launched by state-owned Videsh Sanchar Nigam Limited (VSNL) on 15 August 1995
When two computers need to communicate, you have to link them, either physically (usually with an Ethernet cable) or wirelessly (for example with WiFi or Bluetooth systems).
You can connect as many computers as you wish. But it gets complicated quickly. If you’re trying to connect, say, ten computers, you need 45 cables, with nine plugs per computer! To solve this problem, each computer on a network is connected to a special tiny computer called a router. This router has only one job: like a signaler at a railway station, it makes sure that a message sent from a given computer arrives at the right destination computer. Once we add a router to the system, our network of 10 computers only requires 10 cables: a single plug for each computer and a router with 10 plugs.
So far so good. But what about connecting hundreds, thousands, billions of computers? Of course a single router can’t scale that far, but, if you read carefully, we said that a router is a computer like any other, so what keeps us from connecting two routers together? By connecting computers to routers, then routers to routers, we are able to scale infinitely.
Such a network comes very close to what we call the Internet. we need a special piece of equipment called a modem which gets connected via telephone cable or fiber cables. we will connect our network to an Internet Service Provider (ISP).
As you might notice, when we browse the Web with a Web browser, we usually use the domain name to reach a website. Does that mean the Internet and the Web are the same thing? It’s not that simple. As we saw, the Internet is a technical infrastructure which allows billions of computers to be connected all together. Among those computers, some computers (called Web servers) can send messages intelligible to web browsers. The Internet is an infrastructure, whereas the Web is a service built on top of the infrastructure. It is worth noting there are several other services built on top of the Internet, such as email and IRC.
Internet Corporation of Assigned Names and Numbers (ICANN) – a company governed by the US Laws, and accountable to the US government. ICANN is responsible for technical operations of root and domain names infrastructure; it also acts as a transnational governance institution that makes global Internet public policies that impact copyright, privacy, and cybersecurity , which are sovereign interests of the nations.The city of Frankfurt is currently home to the world’s largest internet hub.
😳Why❓❓❓
why we see one side of moon🌕🌔⁉
Only one side of the Moon is visible from Earth because the Moon rotates on its axis at the same rate that the Moon orbits the Earth, a situation known as synchronous rotation or tidal locking. The Moon is directly illuminated by the Sun, and the cyclically varying viewing conditions cause the lunar phases
💁🏻♂️ GK TODAY
CV Raman or Chandrasekhara Venkata Raman : He is the man behind the discovery of the Raman Effect.
He wob Nobel Prize in 1930 for his discovery. A beam of coloured light entered a liquid, a fraction of the light scattered by that liquid was of a different color. Raman showed that the nature of this scattered light was dependent on the type of sample present.
🐣 BORN TODAY
Captain Manoj Kumar Pandey, PVC (25 June 1975 – 3 July 1999), was an Indian Army officer of the 1st battalion, 11 Gorkha Rifles who was posthumously awarded India’s highest military honour, the Param Vir Chakra, for his audacious courage and leadership during the Kargil War in 1999. He was Martyr during the attack on Jubar Top, Khalubar Hills in Batalik Sector, Kargil.
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Ch. Naveen Kumar |
