What is the Internet? key questions answered

What is the Internet

The Internet is an extensive network that allows computer networks around the world to communicate with each other through companies, governments, universities and other organizations. The result is cables, computers, data centers, routers, servers, repeaters, satellites and WiFi towers, enabling digital information to travel around the world.

This is the infrastructure that commands you to shop for a week, share your life on Facebook, stream broadcasts on Netflix, email your aunt in Wollongong and find the world's smallest cat.


How big is the Internet?

One measure is the information provided by the courses through it: five deductions per day. This is equivalent to 40,000 two-hour standard definition films per second.

It takes some wiring. Millions of miles of cables and cross country were placed on the ocean floor to connect the islands and continents. With about 300 submarine cables, the deep sea version is as thick as a garden hose, subject to the modern Internet. Most hair thin bundles of fiber optics contain data at light speed.

The cables are connected to the 12,000-mile Asia-American Gateway from the 80-mile Dublin to Anglican connection, which connects California to Singapore, Hong Kong and other parts of Asia. Number of major cable people. In 2008, millions of Internet users in Africa, India, Pakistan, and the Middle East were affected by the collapse of two sea cables near the port of Alexandria, Egypt.

British security chief Sir Stuart Peach warned last year that Russia would pose a threat to international trade and the Internet if Russia chooses to destroy the maritime cable.

How much energy does the Internet use?

Chinese telecommunication company Huawei estimates that the Information and Communication Technology (ICT) industry will consume 20% of the world's electricity and by 2025 more than 5% of the world's carbon emissions. Incoming tsunami data, ”says study author Anders Andr..

In 2016, the US government's Lawrence Berkeley National Laboratory estimates that U.S. data centers - including computer stores, processes and information sharing facilities - will need $ 73 billion in energy by 2020. It is the product of 10 Hinckley Point B nuclear power stations.

What is the World Wide Web?

The Web is a way of viewing and sharing information over the Internet. That information is written on web pages saved by text, music, photo or video or whatever.

Google handles 40,000 searches per second and accounts for 60% of the global browser market through Chrome. About 2 billion websites exist, but are rarely visited. The top 0.1% of websites (about 5 m) attract more than half of the world's web traffic.

These include Google, YouTube, Facebook, Baidu Chinese sites, Instagram, Yahoo, Twitter, Russian social network vikekam, Wikipedia, Amazon and Smiling porn sites. The rise of apps means that for many people, being on the Internet today is less about browsing the open web than getting more focused information: news, messages, weather forecasts, videos and the like.

What is the dark web?

A search of the web did not find all this. Google uses the word "puppies" and your browser displays web pages found by hundreds of billions of search engines logged into your search index. Although the search index is large, it is only part of what is on the web.


And more, maybe 95%, is uninstalled and not visible to standard browsers. Think of the web as having three layers: superficial, deep, and dark. Standard Web browsers track the surface web, which pages look the most. Deep web beneath the surface: the mass of pages that are not indexed. These include pages placed behind passwords - for example the type and unlinked pages found on Office Intranet, because of Google and others.

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2 Comments

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