Disadvantages of computer
# No IQ
∆ A computer is a machine that has no intelligence to perform any task.
∆ Each instruction has to be given to the computer.
∆ A computer can not take any decision.
# No feelling
∆ It can not make judgement based on feeling, test experience and knowledge unlike humans.
∆ Computer have no feeling or emotions.
# Environment
The operating environment of the computer should be dust free .
# Computer generation
S.no. generation discription
1. 1946-1959 Vaccum tube based
2. 1959-1965 Transistor based
3. 1965-1971 Integrated circuit
4. 1972-1980 VLSI microprocessor
5. 1980- onwards ULSI microprocessor
# Computer Components
Operation Description
1. Take input. The process of enter the data and instruction into the computer system.
2. Store data. Saving data and instruction so that they are available for processing as and when required.
3. Processing. Performing arithmetic and logical operations on data in order to convert them into useful information.
4. Output information. The process of producing useful i information or result for the user such as a printed report or display.
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