A computer can be described as an electronic device designed to accept
raw data as input, processes them and produces meaningful information as
output. It has the ability to perform arithmetic and logical operations as per
given set of instructions called program. Today, computers are used all over
the world in several areas for different purposes.
A computer system has mainly
three components namely, input unit, central processing unit and output unit.
These components are the building blocks of a computer and define its
architecture. The relationship among these components is established by the
following diagram:
Computers are nowadays widely
used in scientific research, education, business, accounting, transportation,
communication, banking, defence, etc. With the expansion of business, the
number of transactions has increased tremendously and as a result in accounting
the manual method of keeping and maintaining records have become unmanageable.
The manual method of accounting is being gradually replaced with the
introduction of computers in business.
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