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Storage capacity: Computer can store very large amount of data. You have
many storage devices like CD, DVD, flash drive, etc. to store your data.
Versatility: Computers can be used to perform different types of tasks. At one
point of time, you can type a document, the next moment you can listen to a
song or watch a video.
Compactness: With regular advancements in technology, the computer size
is decreasing.
Reliability: Computer does not make mistakes. If the input is correct, then the
computer always gives the relevant answer to the input.
Power of remembering: The data stored in the computer can be recalled at
any time
LIMITATIONS OF A COMPUTER
Computer is a versatile machine and performs multiple functions, but it has the
following limitations:
Lack of decision-making ability: A computer does not have a brain like
human beings. It cannot take a decision on its own. It can only perform the
tasks that are instructed by the human being.
Lack of intelligence: A computer is not gifted with intelligence as human
beings are. It can only work as per the instructions given by human beings.
Lack of feelings and emotions: Computers are different from human beings.
It does not possess feelings and emotions like human beings. It cannot do
anything on its own.
Time taken in planning and programming: We have to first choose the jobs
to be computerised, and then proper planning and development of programs
can take days, months and sometimes even years.
WORKING OF A COMPUTER
A commonly used computer needs the
following hardware to work:
✶ Input devices
✶ Output devices
✶ Storage devices
✶ CPU (Processing device)
Along with the hardware, the computer requires
software to work. A set of instructions written in
any computer language is known as a program.
Programs are stored in the computer’s memory.
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