Why are there computers in the world?
Computers were made to calculate big numbers that could not be
calculated by humans. Before computers it took about 7 years to
calculate the population for the US census, by the time it was all
counted up it was outdated.
Computers were later used to decode enemy messages, and to
encode ally messages. When computers weighed several tons and were
not affordable for the average person they were mainly used by the
military and big businesses.
Computers today are used to communicate and to share and find
information over the internet. Computers are now affordable to any
person on earth with access to electricity and an internet
connection. Computers are also used to design buildings and
structures, calculate numbers, host the internet, government
private communications, and millions of other uses.