Computer Project

2.  Speed
 Accuracy
 Reliability
 Storage Capacity
 Versatility
 Reduction in Manpower
 Reduction in Paper Work

3.  Military
 Banks
 Research
 Education
 Media & Communication
 Criminal Identification and
Law Enforcement
 Edutainment
 Business
The invention of computers has led to the advancement in science and technology.
Life has become more efficient with the use of computers in our day to day life. Today,
computer is being used in almost every field of our life. The major areas of computer
applications are :
 Animation and Films
 Book Publishing
 Commercial Purpose
 Engineering and Manufacturing
 Sports
 Medical Science
 Government Sector
 Library and Museum

4. Input:
Accepts the input in the form of instructions
or data.
Storage and Retrieval:
Input data or instructions can be stored in
computer’s memory and can also be
retrieved whenever required.
Processing:
Unorganised data can be converted into
meaningful information as per the user’s
requirement by processing.
Output:
Gives the desired result in the form of
either Soft copy or Hard copy as
required.

5. The memory unit is the principal storage of the computer. It stores both data and instructions
so that they will be available when required. This unit is linked with other parts of the
computer and sends data to them when needed.
Memory is classified into two categories.
INTERNAL MEMORY
A place with limited storage capacity,
where data and programs are stored
temporarily as long as they are being
executed. It is very fast. Two types of
Internal Memory are:
EXTERNAL MEMORY
It is permanent and needed, since the main
memory is temporary and insufficient to store
huge amount of data. The speed is much
slower than Internal Memory. Hard Disks, CDs,
DVDs, Pen Drives are commonly used External
storage devices.
RAM
Random Access
Memory
ROM
Read Only
Memory

6. Incapability to Think:
Computer can not think and take
decision on its own.
No Intelligence:
Unlike human beings a computer has no
IQ. It needs instructions at every step.
Dependence on Power:
A computer is an electronic machine
and thus its dependence on power
makes it costly.
The computer can outperform human beings in speed, memory and accuracy but still the
computer has limitations. There are following limitations of a computer.
Programmed by human:
Though computer is programmed to work
efficiently, fast and accurately but it is programmed
by human beings to do so. Without a program,
computer is nothing.
Self Care:
A Computer can not care itself like a human. A
computer is dependent still to human beings for this
purpose.
Feelings:
One of the main limits in the computer is of feeling.
A computer can not feel about some like a human.
Human can feel, think and caring but a computer machine itself can not. A computer can not take place
of human because computer is always dependent of human. A computer can not meet human in respect
of relations.

7. The increasing use of information technology in our lives has resulted
in a new and improved way of thinking, living and working. Earlier,
computers were used mostly by Scientists and Engineers for complex
calculations and they were very costly.
Nowadays, a computer is within the reach of every working person.
It has virtually become a need in Banks, Hospitals, Railways,
Shopping Malls, Schools, Colleges and Homes etc.
In fact, it would be appropriate to say that it is hard to imagine life
without a computer.