What is Computer?
A computer is an
electronic device that is capable of accepting input, processing data, and
producing output based on instructions or commands that have been programmed
into it. It is a complex system made up of hardware components, including a
central processing unit (CPU), memory, storage devices, input and output
devices, and various peripherals. In addition to the hardware, computers rely
on software, such as operating systems and applications, to manage their
resources and perform specific tasks. Computers have become essential tools in
many industries and fields, from business and education to entertainment and
scientific research.
History of
Computer:
The history of computers dates back
to the early 19th century, when machines were invented to perform arithmetic
calculations. However, the development of computers as we know them today began
in the mid-20th century, with the creation of the first electronic computers.
First electronic computer, known
as the Electronic Numerical Integrator and Computer (ENIAC), was built in the
United States in 1945. It was a massive machine, weighing more than 27 tons and
taking up an entire room. ENIAC was used primarily for military calculations
during World War II, and its development paved the way for the modern computer
age.
In the years following the creation
of ENIAC, a number of other electronic computers were developed. These machines
were smaller and more efficient than ENIAC, and they were used for a variety of
purposes, including scientific research, business calculations, and military
applications.
One of the most significant
developments in the history of computers was the invention of the microprocessor
in the early 1970s. The microprocessor made it possible to build computers that
were small enough to fit on a desktop, and it revolutionized the computer
industry. With the advent of the microprocessor, computers became faster, more
powerful, and more affordable, making them accessible to a much wider audience.
In the years since the invention of
the microprocessor, computers have continued to evolve and improve. Today, we
have computers that are small enough to fit in our pockets, and they are more
powerful than ever before. Computers are used in virtually every aspect of
modern life, from business and finance to entertainment and social networking.
In conclusion, the history of computers is a fascinating and rapidly evolving field. From the massive machines of the mid-20th century to the tiny computers of today, computers have come a long way in a relatively short period of time. With new technologies emerging all the time, it will be interesting to see where the history of computer takes us in the future.