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====Scientific data processing====
"ItScientific data processing "usually involves a great deal of computation (arithmetic and comparison operations) upon a relatively small amount of input data, resulting in a small volume of output." <ref name=Reddy>{{cite book|last=Reddy|first=R.J.|title=Business Data Processing & Computer Applications|year=2004|publisher=A P H Publishing Corporation|___location=New Dehli|isbn=8176486493|page=17|url=http://books.google.com/books?id=FLKoXCts9ssC&lpg=PA17&dq=%22scientific%20data%20processing%22&pg=PA17#v=onepage&q=%22scientific%20data%20processing%22&f=false}}</ref>
Scientific data processing
"It usually involves a great deal of computation (arithmetic and comparison operations) upon a relatively small amount of input data, resulting in a small volume of output." <ref name=Reddy>{{cite book|last=Reddy|first=R.J.|title=Business Data Processing & Computer Applications|year=2004|publisher=A P H Publishing Corporation|___location=New Dehli|isbn=8176486493|page=17|url=http://books.google.com/books?id=FLKoXCts9ssC&lpg=PA17&dq=%22scientific%20data%20processing%22&pg=PA17#v=onepage&q=%22scientific%20data%20processing%22&f=false}}</ref>
 
====Commercial data processing====