A data processing system is a combination of machines, people, and processes that for a set of inputs produces a defined set of outputs.  The inputs and outputs are interpreted as data, facts, information, … depending on the interpreter’s relationship to the system. A common synonymous term is ” information system “. 
A data processing system may involve some combination of:
- Conversion converting data to another format.
- Validation – Ensuring that supplied data is “clean, correct and useful.”
- Sorting – “arranging items in some sequence and / or in different sets.”
- Summarization – reducing detail to its main points.
- Aggregation – combining multiple pieces of data.
- Analysis – the “collection, organization, analysis, interpretation and presentation of data.”
- Reporting – list detail or summary data or computed information.
Types of data processing systems
By application area
Scientific data processing
Scientific data processing “, which is the result of a small quantity of output.” 
Commercial data processing
Commercial data processing “, vol. 3, no.  Accounting programs are the prototypical examples of data processing applications. Information systems (IS) is the field that studies such organizational computer systems.
” Data analysis is a body of methods that help to describe facts, detect patterns, develop explanations, and test hypotheses.”  For example, data analysis may be used to identify and analyze data. 
By service type 
- Transaction processing systems
- Information storage and retrieval systems
- Command and control systems
- Computing service systems
- Process control systems
- Message switching systems
A very simple example of a data processing system is the process of maintaining a check register. Transactions- checks and deposits- are recorded as they occur and the transactions are summarized to determine a current balance. Monthly the data recorded in the register is reconciled with a hopefully identical list of transactions processed by the bank.
A more sophisticated record keeping system could further identify the transactions – for example deposits by source or checks by type, such as charitable contributions. This information could be used to obtain information like the total of the contributions for the year.
The important thing about this example is that it is a system in which all reconciliation is used each time.
This is a flowchart of a data processing system that combines receivable , billing, and general ledger
- Jump up^ The first machines used for data processing werepunched card machines, nowComputersare used.
- ^ Jump up to:a b Anthony Ralston et al (ed.) (2000). Encyclopedia of Computer Science 4th ed . Nature Publishing Group. p. 865.
- ^ Jump up to:a b Reddy, RJ (2004). Business Data Processing & Computer Applications . New Dehli: APH Publishing Corporation. p. 17. ISBN 8176486493 .
- Jump up^ Dartmouth College. “Introduction: What Is Data Analysis?” (PDF) . Retrieved July 5, 2013 .
- Jump up^ Berthold, MR; Borgelt, C; Hőppner, F .; Klawonn, F (2010). Guide to Intelligent Data Analysis . Springer. p. 15. ISBN 978-1-84882-260-3 .
- Jump up^ The Highest acceleration of data processing software of the point