What discovery in the last 100 years has been most beneficial for your people

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What discovery in the last 100 years has been most beneficial
for your people?
Many discoveries in the last 100 years benefit the people in
different ways and different scales, but I believe the benefit of
computer tops all.
Firstly, computer has become a necessary tool of human beings,
applied almost in every field. It is very hardly to image the world
without computer. Picture this, how could it possible to build up
the project like Three Gorge without computer, how could we
make the precise calculation for spaceship launching without
computer. The precise control of aviation, the management of
comprehensive database, the effective virus detection in the
seconds and so on, all these things only can be done under the
help of computer.
Computer is not only providing convenience to the society but also
make our works more precise and correct.
Secondly, computer liberates the people from arduous work and
make human beings`s life more enjoyable. For lot of work, it
takes several days ever more physically and personally to
complete, but computer may complete it in several minutes or
ever less. What you require to do is just to press a button or
clicking mouse. I am an irrigation engineer and actual computer
helps me to earn my bread. I design the works and make
drawings with computer, it makes my work more efficiently and
easily.
Thirdly, there are so many danger works treating people`s life,
but computer makes it possible to avoid any dangerous work.
Robot devised with computer can almost do anything
dangerous instead of human beings` physical work.

All in all, computer is the necessary tool of human beings, it
benefits people most than other new discovered technology.


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