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Du bist hier: Referate Datenbank | Englisch
| Computers
Computers
Computers
History
A precursor of the digital computer was the adding machine. It was developed in
1642 by the French philosopher Blaise Pascal. Analog computers started to be
built at the beginning of the 20 century. Such machines were used for solving
very difficult equations. During world wars mechanical analog computers were
used in submarines and planes.
In the 1940s Howard Aiken, a Havard University mathematician, created the first
digital computer. It was huge and primitive but it could solve equations
without using any mechanical adding machine parts.
With the invention of microprocessors and transistors the evolution of the
computers went on.
Can a Computer Think?
It is said that computers only think because they are programmed to do so. When
they solve a mathematical equation, they were programmed to solve it. Now we
have the idea to build a computer complex enough to duplicate the human brain.
Long before we approach a computer as complex as our brain, we will perhaps
build a computer that is at least complex enough to create another computer more
complex than itself. This more complex computer could create one still more
complex and so on and so on. Once we pass a critical point where the computers
are as complex as our brain, then it will not stop, the computers will surpass
it. Then we have an intelligent computer. Will we be allowed to turn this
computer, a thinking creature, off?
Bill Gates and his Internet
Bill Gates was born in Seattle 1958. He started his career in personal computer
software when he began to program at the age of 13. His first program was for
playing tic-tac-toe at school. At the age of 15 Bill Gates created a system to
control the traffic in Seattle. In 1975 he left Harvard University to write
programs. He developed BASIC for the first microcomputer. He always had the
dream that all computers would join together to communicate; the idea of the
Internet was born. This was the start of his path to success.
In 1977 Bill Gates and his friend Paul Allen founded Microsoft and with this
company he started to write other versions of BASIC and other programs (DOS,
Windows 3.1, ...) His company had a great success in selling those
products.
Today Bill’s company is worth: $46,035,490,000 (That’s 46.04
billion).
In the time since March 13, 1986 Bill’s company worth has increased by 45
billion US dollars. Let’s look at how much Bill has made for each of these
periods of time.
Unit of time
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Dollars made during each of these periods (in $)
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Second
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120.83
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Minute
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7,250.15
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Hour
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435,009.37
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Day
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10,440,224.97
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Month
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313,206,749.00
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Year
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3,810,682,116.54
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That means that Bill Gates could give 8 US dollars to every person on the planet
(about 6 billion) and he would still have $ 40,301,396.00 left.
Let’s go back to the Interactive Network (Internet). The idea of the
Internet is to connect all computers all over the world and to exchange news
between companies. Today offices usually have a PC on every desk. Therefore we
could buy all things per Internet by filling in a form and by clicking submit
(Online – Shopping). Nowadays every bank has Internet access with the so
called Online – Banking. You can do your money transfers at home at your
PC.
Internet for everybody
In Austria 42% of the Households are equipped with a PC, 13% of them have a
modem and 9% Internet. 9% are about 290,000 Internet connections. 56% of the
Internet users are between 14 and 29 years old. 30% of the Internet users all
over the world are women, in the German speaking part only 17.2% of the Internet
users are women.
Learning on the Internet
Education and learning on computer and Internet perhaps will improve it. There
have been a few changes since computers were developed in the early 1960s. Today
in school calculators are used and also real PCs. In our school we also have an
Internet connection, where we can get some information.
In a few towns in Alaska or in other northern states, where some houses or
housing estates are far away from school, the children are taught by a teacher
from the nearest big town with the help of the Internet connection. They use the
so called Tele teaching, it’s a product for efficient video transfer on
computer networks.
Nowadays there are also learning programs on the computer. For example there are
some vocabulary trainers in Latin, English, Spanish, ...
In the end I want to tell you that a life without a computer wouldn’t be
possible today. You have to think of all branches and places where computers are
used nowadays. Can you imagine a life without
• PCs
• Mobile phones
• Digital TV
• Internet
• Underground systems
• Planes – air traffic navigation
• ...
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