Meaning of computer:
The word “computer” comes from the word “compute” which means to calculate.
So a computer is normally considered to be a calculating device that performs
arithmetic operations at enormous speed.
More accurately, a computer may be defined as a device that operates upon
information or data. Now a day’s more than 80 % of the work done by computers
today is a non-mathematical or non- numerical nature.
Modern Definition of computers: A computer is an electronic device which is used
to perform operation on raw data as per instruction given by user. All the Plugged
with computer system (e.g. keyboard, mouse, printer, CPU etc.) is called
hardware, the language, instruction, and data are the called software.
Characteristics or Features of Computer
1. Speed: A computer is a very fast device. The computer takes a fraction of
seconds to perform any operation. The speed of computer is measured in micro
seconds.
2. Accuracy: The accuracy of computer is very high and the degree of a particular
computer depends upon its design. But for a particular computer, each and every
calculation is performed with the same accuracy. Errors can occur in a computer
but these are mainly due to human rather than technological weakness.
3. Storage Capacity : Computers can store data and instruction with a lot of
volume and very high efficiency.
4. Diligence: unlike human being a computer is free from monotony, tiredness,
luck of concentration etc. and hence can work for hours together without creating
any error. A computer can perform the last calculation with exactly the same
accuracy and seed as the first one.
5. Automation: Once a Program is in the computer’s memory, CPU follows the
instructions until it meets the last instruction. Though the program concept many
takes can be performed simultaneously, some on foreground and some on
background. Thus automation bring the program execution fast
6 Reliability: Because, computer is an electronic device thus it perform all
operations with 100 % accuracy and reliability. Reliability can affect only error
prone by human mind.
7. Versatility: versatility is one of the most wonderful things about the computer.
One moment it can do any one operation and next moment if can perform any
The word “computer” comes from the word “compute” which means to calculate.
So a computer is normally considered to be a calculating device that performs
arithmetic operations at enormous speed.
More accurately, a computer may be defined as a device that operates upon
information or data. Now a day’s more than 80 % of the work done by computers
today is a non-mathematical or non- numerical nature.
Modern Definition of computers: A computer is an electronic device which is used
to perform operation on raw data as per instruction given by user. All the Plugged
with computer system (e.g. keyboard, mouse, printer, CPU etc.) is called
hardware, the language, instruction, and data are the called software.
Characteristics or Features of Computer
1. Speed: A computer is a very fast device. The computer takes a fraction of
seconds to perform any operation. The speed of computer is measured in micro
seconds.
2. Accuracy: The accuracy of computer is very high and the degree of a particular
computer depends upon its design. But for a particular computer, each and every
calculation is performed with the same accuracy. Errors can occur in a computer
but these are mainly due to human rather than technological weakness.
3. Storage Capacity : Computers can store data and instruction with a lot of
volume and very high efficiency.
4. Diligence: unlike human being a computer is free from monotony, tiredness,
luck of concentration etc. and hence can work for hours together without creating
any error. A computer can perform the last calculation with exactly the same
accuracy and seed as the first one.
5. Automation: Once a Program is in the computer’s memory, CPU follows the
instructions until it meets the last instruction. Though the program concept many
takes can be performed simultaneously, some on foreground and some on
background. Thus automation bring the program execution fast
6 Reliability: Because, computer is an electronic device thus it perform all
operations with 100 % accuracy and reliability. Reliability can affect only error
prone by human mind.
7. Versatility: versatility is one of the most wonderful things about the computer.
One moment it can do any one operation and next moment if can perform any
