Site Designed by : Technical Lateef Salman Mobile : 91-9849330092 91-9848915063
Channel : LS Mobi Tricks Channel : Technical Lateef Salman
COMPUTER CONCEPTS
INTRODUCTION: -
The computer can be defined
as a machine (Electronic Machine), which can accept data in a prescribed form,
process the data in a specified manner and supply the Results.
Computers
are sophisticated calculating machines, which are capable of performing a large
No. of mathematical operations in a very short time. Today computers are used
in diverse applications such as weather forecasting, controlling machinery, and
issuing tickets. They also set and print news papers and books etc.
COMPUTER
APPLICTIONS
1. Business
Applications:-
In office environment, preparation of reports, letters
and documents, required comprehensives, editing and several revisions to be
done respectively. Word processors are particularly useful for this kind of
job.
2. Scientific
Applications:-
Today a computer used in scientific establishment
infect there are worldwide networks linking universities and “R&D”
(Research and Development) Laboratories
3. Medical
Applications:-
Computer is used for planning and monitoring patient management,
inventory management, and billing etc.
4. Engineering
Applications:-
Engineering to design a circuit and later analyzed the
same and Report on defects such as un-connected components, as well as
computers help design engineers to design a new component Ex: Car Model, Gear
etc.,
5. Education
Applications:-
Computers when used in the field of Education Lead to
improved student performance in thinking logically and in problem solving
gravity and Newton
CAPABILITIES OF
A COMPUTER
1.
SPEED: - Computers can perform Arithmetic calculations and
logical comparisons at an incredible speed with remarkable accuracy. The
processing speed of a computer is generally measured in Nano-Seconds.
TIME – SCALE:
UNIT OF TIME
|
PART OF SECOND
|
One Millie Second (M.S)
|
(1/1000) Thousandth of a second
|
One Micro Second (μ.S)
|
(1/1000000) One millionth of a second.
|
One Nano-Second (N.S)
|
(1/1000000000) One Billionth of seconds
|
One Pico Second (P.S)
|
(1/1000000000000) One
Trillionth of a seconds
|
2.
STORAGE: - Computer has a large storage capacity. We could store
say the contents of around 200 sheets of papers, on a medium which is not even
half the size of one sheet of paper. A storage device is in a shape of “Lunch
Box”.
3.
ACCURACY: - The Accuracy of computers is consistently high. Errors
in computer are generally due to human negligence.
4.
DILIGENCE: - Computers being machines don’t suffer from
concentration. If 5 (five) million calculations have to be performed with the
same accuracy and speed as the first.
5.
VERSALITY: - A major strength of computer is that they can do a
very wide range of jobs, both related and un-related with speed accuracy and
diligence.
LIMITATIONS OF
COMPUTER
1.
LACK OF COMMON SENSE: - The computer is only a tool. It cannot think. It
doesn’t have common sense or intelligent as we all have.
2.
INABILITY TO CORRECT: - When we give Instructions to a computer, we must give
the correct Instructions. Computer follows the fact from Instructions. A
computer con not uses its Brain because it’s doesn’t have brain.
3.
DEPENDENTS ON HUMAN INSTRUCTIONS: - A computer cannot generate any information on its own.
It can only do what it’s to do.
HISTORY OF COMPUTERS
Computer
History starts with the development of
a device called “Abacus” by the chinies around 3000 B.C. This was for the
systematic of calculation of arithmetic like Addition, Subtraction,
Multiplication and Division.
A French
mathematician “Blaise Pascal” in
“1642” developed first Calculating Machines. “Leibnitz” a German mathematician in “1694” developed Mechanical
Computer which could add and multiply.
Written by : Technicl Lateef Salman Mobile : 91-9849330092 91-9848915063
No comments:
Post a Comment