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HTML stands for Hyper Text Markup Language it was created by Berners-Lee in late 1991 , which is the most widely used language on Web to develop web pages.
Web browsers can read HTML files and compose them into visible or audible web pages. Browsers do not display the HTML tags and scripts, but use them to interpret the content of the page. HTML describes the structure of a website semantically along with cues for presentation, making it a markup language, rather than a programming language .
Html 2.0 1995
Html 3.2 1997
Html 4.01 1999
Html 5 2012
GETTING STARTED :
HTML files are just simple text files, so to start writing in HTML, you need a simple text editor ,for learning HTML a simple text editor like Notepad (PC) or TextEdit (Mac) will be easy . HTML can be edited by using a professional HTML editor like Adobe Dreamweaver , Microsoft Expression Web,CoffeeCup HTML Editor .
To create a simple Webpage with notepad :
Open Notepad (PC) or TextEdit (Mac)
Write some HTML into Text Editor :
Following is an example of a simple HTML document with Heading and Paragraph :
The following code can be copy/pasted in the “Try yourself” Section.
This is Heading
This is paragraph
Save the HTML page :
The finished page should be saved in .Html extension .
UTF-8 is the preferred encoding for HTML files .
To view the HTML page :
Open the saved HTML file in your browser.
Ransomware cyber-attack: Who has been hardest hit?
MyJoyOnline | 4 days ago
The WannaCry ransomware cyber-attack has hit more than 200,000 computers in 150 countries since Friday, Europol says.
Governments, hospitals and major companies have all found themselves battling the malware, which demands money in return for unfreezing computers.
The virus tried to infect more computers in Russia than anywhere else, according to an analysis by Kaspersky Lab, a Russian antivirus company.
The interior ministry, railways, banks and the Megafon mobile phone operator – Russia’s second-largest – all found themselves battling demands for ransom.
An interior ministry spokeswoman said about 1,000 computers using Microsoft Windows were attacked but these had been isolated from networks.
Image copyright AFP/Getty; Image caption The demand for Bitcoin appeared on departure screens at a Frankfurt station
Electronic boards at stations announcing arrivals and departures were affected, but train services were not disrupted, Deutsche Bahn said.
Many students reported seeing demands for ransoms pop up on their laptops as networks at universities across the country reported severe disruption.
Underfunded universities often use outdated or even pirated computer software, leaving students vulnerable to such attacks, according to BBC Asia-Pacific analyst Celia Hatton.
They are now being forced to pay $300 (£230) to continue working on end-of-year projects due to be handed in soon, our correspondent says.
Overall, hundreds of thousands of computers at nearly 30,000 institutions and organisations were affected, including government agencies and hospitals, internet firm 360 Security said.
Image copyright EPA : Image caption Officials at the Korea Internet and Security Agency have been monitoring the threat
A company official said films were still being screened as scheduled and the company was investigating.
Overall, nine cases of ransomware had been found, the South Korean government said.
The Japan Computer Emergency Response Team Co-ordination Centre said 2,000 computers at 600 companies in Japan had been affected.
Hitachi said it was experiencing email delays and file delivery failures and suspected the cyber-attack was to blame, although no ransom was being demanded.
The communication and information ministry said the malware locked patient files on computers at two hospitals in the capital Jakarta.
Patients at the Dharmais Cancer Hospital could not get queue numbers and waited several hours while staff found paper records, local media reported.
Several companies in the cities of Mumbai, Hyderabad, Bengaluru and Chennai were also affected.
However India has said that its vital computer systems largely escaped unscathed because the state organisation that manages almost all government websites installed patches to immunise its Windows systems.
Some of the biggest disruption was caused by attacks on the UK health system, which saw hospitals and clinics forced to turn away patients after losing access to computers.
Pictures on social media showed NHS computer screens with messages saying: “Ooops, your files have been encrypted!”
In England, 48 National Health Service (NHS) trusts reported problems at hospitals, doctor surgeries or pharmacies, and 13 NHS organisations in Scotland were also affected.
A Nissan car factory in the north-eastern city of Sunderland was also affected, a spokeswoman said.
The Spanish telephone operator Telefonica said it had been attacked. Telefonica’s head of cyber-security Chema Alonso – himself a former hacker – said the infected equipment was “under control and being reinstalled”.
Other Spanish firms to be hit included power firm Iberdrola and utility provider Gas Natural. Staff were reportedly told to turn off their computers.
The car manufacturer had to halt production at many sites, including in France, Slovenia and Romania, as part of measures to stop the spread of the virus.
On Monday the firm said that 90% of its factories were running again. It said its plant at Douai in northern France would be back to normal on Tuesday, following checks. Renault would be able to catch up with any lost production so customers would not be affected, it added.
Three hospitals in Ireland have been affected but the government says it will not name them and patient care is “broadly unaffected”.
The logistics firm said it was “implementing remediation steps as quickly as possible”, without specifying how badly it had been affected.
Australian officials said so far only three small-to-medium sized businesses had reported being locked.
I’m sure you’ve seen this before. It’s worth reminding ourselves of the changes around us that we can’t stop. It may not happen that way but it’ll be close in many respects:
In 1998, Kodak had 170,000 employees and sold 85% of all photo paper worldwide. Within just a few years, their business model disappeared and they went bankrupt.
Interestingly the inventor of digital photography in 1975 Steven Sasson worked for Kodak but Kodak ignored the new technology and in the process ignored their future!!
What happened to Kodak will happen in a lot of industries in the next 10 years – and most people don’t see it coming.
Did you think in 1998 that 3 years later you would never take pictures on paper film again? Yet digital cameras were invented in 1975. The first ones only had 10,000 pixels, but followed Moore’s law. So as with all exponential technologies, it was a disappointment for a long time, before it became way superior and got mainstream in only a few short years.
It will now happen with Artificial Intelligence, health, autonomous and electric cars, education, 3D printing, agriculture and jobs.
Welcome to the 4th Industrial Revolution.
Welcome to the Exponential Age.
Software will disrupt most traditional industries in the next 5-10 years.
Uber is just a software tool, they don’t own any cars, and are now the biggest taxi company in the world.
Airbnb is now the biggest hotel company in the world, although they don’t own any properties.
Artificial Intelligence : Computers become exponentially better in understanding the world. This year, a computer beat the best Go player in the world, 10 years earlier than expected.
In the US, young lawyers already don’t get jobs. Because of IBM Watson, you can get legal advice (so far for more or less basic stuff) within seconds, with 90% accuracy compared with 70% accuracy when done by humans. So if you study law, stop immediately. There will be 90% fewer lawyers in the future, only specialists will remain.
Watson already helps nurses diagnosing cancer, 4 times more accurate than human nurses.
Facebook now has a pattern recognition software that can recognize faces better than humans.
By 2030, computers will become more intelligent than humans.Autonomous Cars:
In 2018 the first self-driving cars will appear for the public. Around 2020, the complete industry will start to be disrupted. You don’t want to own a car anymore. You will call a car with your phone, it will show up at your location and drive you to your destination. You will not need to park it, you only pay for the driven distance and can be productive while driving.
Our kids will never get a driver’s license and will never own a car. It will change the cities, because we will need 90-95% fewer cars for that. We can transform former parking space into parks. 1.2 million people die each year in car accidents worldwide.
We now have one accident every 100,000 km, with autonomous driving that will^ drop to one accident in 10 million km. That will save a million lives each year.
Most car companies may become bankrupt. Traditional car companies try the evolutionary approach and just build a better car, while tech companies (Tesla, Apple, Google) will do the revolutionary approach and build a computer on wheels. I spoke to a lot of engineers from Volkswagen and Audi; they are completely terrified of Tesla.
Insurance Companies will have massive trouble because without accidents, the insurance will become 100x cheaper. Their car insurance business model will disappear.
Real estate will change. Because if you can work while you commute, people will move further away to live in a more beautiful neighborhood. Electric cars won’t become mainstream until 2020. Cities will be less noisy because all cars will run on electric.
Electricity will become incredibly cheap and clean: Solar production has been on an exponential curve for 30 years, but you can only now see the impact. Last year, more solar energy was installed worldwide than fossil. The price for solar will drop so much that all coal companies will be out of business by 2025.With cheap electricity comes cheap and abundant water.
Desalination now only needs 2kWh per cubic meter. We don’t have scarce water in most places, we only have scarce drinking water. Imagine what will be possible if anyone can have as much clean water as he wants, for nearly no cost.
Health: There will be companies that will build a medical device (called the “Tricorder” from Star Trek) that works with your phone, which takes your retina scan, your blood sample and you breathe into it. It then analyses 54 biomarkers that will identify nearly any disease. It will be cheap, so in a few years everyone on this planet will have access to world class medicine, nearly for free.
3D printing: The price of the cheapest 3D printer came down from $18,000 to $400 within 10 years. In the same time, it became 100 times faster.
All major shoe companies started 3D printing shoes.
Spare airplane parts are already 3D printed in remote airports.
The space station now has a printer that eliminates the need for the large number of spare parts they used to have in the past.
At the end of this year, new smart phones will have 3D scanning possibilities. You can then 3D scan your feet and print your perfect shoe at home.
In China, they already 3D printed a complete 6-storey office building. By 2027, 10% of everything that’s being^ produced will be 3D printed.
Business Opportunities: If you think of a niche^ you want to go in, ask yourself: “in the future, do you think we will have that?” and if the answer is yes, how can you make that happen sooner? If it doesn’t work with your phone, forget the idea.
And any idea designed for success in the 20th century is doomed in to failure in the 21st century.
Work: 70-80% of jobs will disappear in the next 20 years. There will be a lot of new jobs, but it is not clear if there will be enough new jobs in such a small time.
Agriculture: There will be a $100 agricultural robot in the future. Farmers in 3rd world countries can then become managers of their field instead of working all days on their fields. Agroponics will need much less water.
The first Petri dish produced veal is now available and will be cheaper than cow-produced veal in 2018. Right now, 30% of all agricultural surfaces is used for cows. Imagine if we don’t need that space anymore.
There are several startups that will bring insect protein to the market shortly. It contains more protein than meat. It will be labeled as “alternative protein source”
(because most people still reject the idea of eating insects).
There is an app call “moodies” which can already tell in which mood you are.
Until 2020 there will be apps that can tell by your facial expressions if you are lying. Imagine a political debate where it’s being displayed when they are telling the truth and when not.
Bitcoin will become mainstream this year and might even become the default reserve currency.
Longevity: Right now, the average life span increases by 3 months per year. Four years ago, the life span used to be 79 years, now it’s^ 80 years. The increase itself is increasing and by 2030, there will be more than one year increase per year. So we all might live for a long long time, probably way more than 100. By that time the elites will have a secondary Brain embedded close to both sides of their fronto-temporal scalp it stores information about their experiences books they read what they heard etc through a High Def Camera just below their eyelids. For those who can afford it forgetfulness will be a forgotten phenomenon.
Advanced stem cell technology will allow you to ” make ” your own organs or replace defective ones early. Life expectancy will be around 115 to 125 yrs in most of developed world and around 100 years in the rest of the world.
Education: The cheapest smart phones are already at $10 in Africa and Asia. Until 2020, 70% of all humans will own a smart phone. That means, everyone has the same access to world class education.
Are you ready for the future.???