| ENIAC was the first electronic computer. It weighed over 27 tonnes |
History |
| The computer mouse was invented in 1964. The first one was made of wood |
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| Ada Lovelace was the first computer programmer. She lived in the 1800s |
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| Charles Babbage invented the parts for the modern computer in 1833 |
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| Johann Henrich von Muller designed a computer in 1786 but it was not built |
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| The first computer virus was created in 1971. It was called "The Creeper" |
Viruses |
| The fastest spreading computer virus, created in 2004, was called MyDoom |
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| According to McAfee, 100,000 new malware programs are created every day |
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| 92% of malware comes by email so think twice before opening attachments |
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| In 2017 a computer virus hit the NHS causing £92 million of damage |
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| Until 2012 "password" was the most common password. It's now "123456" |
Passwords |
| 59% of people have just one password which they use everywhere |
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| Just 20 passwords make up 10% of the millions in use |
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| The password to launch America's nuclear missiles was set to "00000000" |
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| In 1999 hackers logged into Hotmail accounts by using the password "eh" |
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| In 2015 hackers got records of every US govt employee for the past 50 years |
Hackers |
| Computer security consultant Kevin Mitnick served 5 years in prison for hacking |
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| In 2016 a 15-year-old hacked the FBI and released information on its officers |
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| Julian Assange started hacking when he was 16 years old. His name was Mendax |
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| The personal information of 145 million eBay users was taken by hackers in 2014 |
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| Almost 3 million emails are sent every second. That's 250 billion a day! |
Emails |
| On average people spend 5.4 hours a day checking emails |
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| 28% of emails are spam. In 2008 93% of emails were spam! |
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| Hotmail and rocketmail were the first free email providers, both launched in 1996 |
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| The first email was sent by engineer Ray Tomlinson in 1971 |
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| It used to be possible to set your language on Facebook to "pirate" |
Websites |
| The search engine Google was originally called "BackRub" |
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| A man accidentally bought Google for $12. He owned it for one minute |
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| On average we spend 142 minutes a day on social media |
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| Facebook is the most popular social media site. It has over 2.5 billion users |
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| 92% of web developers are men according to a recent survey |
Companies |
| Microsoft is the largest software company. In 2020 it made $138.6 billion |
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| Java is the most popular programming languages. 59% of developers use it |
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| Apple's original logo was Isaac newton leant against an apple tree. |
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| IBM was founded in 1896 with the name "Tabulating Machine Company" |
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| In the 2008 presidential election, Barack Obama advertised in 18 games |
Games |
| A gene that separates your right brain from the left is called "sonic hedgehog" |
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| In 1993 Super Mario Bros. was the first video game to be made into a movie |
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| The Sega Saturn was the first console games could be saved on |
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| MUD (Multi-User Dungeon) was the first online game. It was created in 1978 |
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| The first wireless internet connection was developed in 1990 |
Internet |
| By 2025 a total of 75.44 billion devices will be connected to the internet |
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| Items connected to the internet include umbrellas, cutlery and tails! |
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| We spend an average of 6 hours and 42 minutes online each day |
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| Google does 70,000 search queries every second or 5.8 billion per day |
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| Computers become hot as you use them, so they have fans inside to cool them |
Hardware |
| The motherboard is arguably the most important piece of computer hardware |
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| The first computer with a built-in monitor was the Xerox Alto released in 1973 |
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| The first hard drive held 5MB of data. Modern ones hold 800,000 times more |
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| The first hard disk came out in 1980. It cost $40,000 and weighed 250 kg |
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