Now everyone all over the world uses the internet. So, what is the internet? What are uses of the internet? Advantages and disadvantages?
The internet made our life so easy because we depend on it.
What is the internet?
The internet is a global system or network of millions of computers that are connected with each other and work together.
The internet made our life so easy because we depend mainly on it.
For example: you can use it for your business, education, … and so on.
How big is the internet?
One measure is the amount of information that courses through it: about five exabytes a day. That’s equivalent to 40,000 two-hour standard definition movies per second.
The Chinese telecoms firm Huawei estimates that the information and communications technology (ICT) industry could use 20% of the world’s electricity and release more than 5% of the world’s carbon emissions by 2025.
In 2016, the US government’s Lawrence Berkeley National Laboratory estimated that American data centres might need 73bn kWh of energy in 2020. That’s the output of 10 Hinkley Point B nuclear power stations.
How many people are online?
It depends how you measure it. One metric popular with the International Telecommunications Union (ITU), a UN body, counts being online as having used the internet in the past three months.
It means people are not assumed to use the internet simply because they live in a town with an internet cable or near a wifi tower. By this yardstick, some 3.58 billion people, or 48% of the global population, were online by the end of 2017. The number should reach 3.8 billion, or 49.2%, by the end of 2018, with half of the world being online by May 2019.
Fixed-line internet connections are expensive in developing countries, so most people connect through their mobile phones. The trend leads to a two-tier experience of the internet that is hidden by growth figures. What can be done on a mobile phone is a fraction of what can be achieved with a desktop, laptop or tablet, as anyone who has tried to file their tax return on their mobile will know.
“The distinction often gets lost in the discussion around access and affordability,” says Dhanaraj Thakur, research director at the Web Foundation. “We can say that 50% of the world is using the internet, but the majority are using it on their phones. In terms of productivity, that is completely different to using a desktop or laptop.”