Manual methods for data manipulation has been used over time.
In manual methods large efforts needed by humans. The errors that can be made are enormous and the process is slow. It incur additional costs.

Business Billing process.
Consider automated customer service in mobiles.
Weather data analysis.
Computers can store large amounts of data.
It can be easily copied and duplicated and transferred on Internet.
Email versus postal mail.
The manual methods are costly.
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