1.It cannot be used on the dusty and the rough environment.
2.Computer is very expensive eo each and every people cannot afford the computer.
3.Repairs and maintenance is required frequently.
4.Skilled user is required to work inside the computer.
5.Computer is the non-intelligebt machine.It cannot think and give the decisions.
6.Electricity is needed to operate but may be destroyed by electric shock and other physical destruction.
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