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Area's of data processing
Business data processing is
characterized by the need to
established, retain, and process files
of data for producing useful
information. Generally, it involves a
large volume of output.
For example, a large retail store must
maintain a record for each customer
who purchases on account.
Business
Data
Processing
(DBP)
Scientific Data Processing
(SDP)
• Data processing involves a limited
volume of input and many logical
or arithmetic calculations.
• A data processing procedure
normally consists of number of
basic processing operations
performed in some order. The means
of manual, electromechanical, or
electronic methods are used. Many
businesses find that the best solution
to their processing requirements is
to use a combination of methods.
Data Processing Operations
A. Recording
B. Verifying
C. Duplicating
D. Classifying
E. Sorting
F. Calculating
G. Summarizing and Reporting
H. Merging
I. Sorting
J. Retrieving
K. Feedback
A. Recording
• Recording refers to the
transfer of data onto some
form or document. It relatives
to the documentation of
intermediate figures and facts
resulting from calculations.
B. Verifying
• Since recording is usually a
manual operation it is
important that recorded data
be carefully checked for any
errors. This operations called
verifying.
C. Duplicating
• It is sometimes necessary or desirable to
copy or duplicate data. This operation
consists in reproducing the data onto
many forms or documents. Duplicating
maybe done while the data being recorded
manually, or it may be done afterwards by
some machines.
D. Classifying
• This operation separates data
into various categories.
Identifying and arranging items
witch like characteristic into
groups or classes is called
classifying
E. Sorting
• Arranging data in a specific order is called
sorting. After the data are classified, it is
usually necessary to arrange or rearrange
them in a predetermined sequence to facilitate
processing. Sorting is done in an alphabetic or
numeric order and the data item which
determines the sorting is called the key.
Numeric sorting usually requires less time
than alphabetic sorting in machine-based
processing systems and it therefore generally
used.
F. Calculating
• Arithmetic manipulation of the
data is known as calculating. It is
a crucial phase of data
manipulation, because the
outcome of this operation
becomes part of the output. In
the calculation of an employee's
pay.
G. Summarizing and Reporting
• In this operation, a collection of data is
condensed and certain conclusions from
the data are represented in a meaningful
format. To be a value, data must often be
condensed or sifted so that the resulting
output reports will be clear, concise and
effective. Reducing masses of data to a
more usable form is called summarizing.
H. Merging
•This operation takes two or
more sets of data, all sets
having been sorted by the
same key, and puts them
together to form a single
sorted set of data
I. Storing
• Placing similar data into files for future
reference is storing. Storage is done by any o
the following methods;
a. manual - such as in a ledger book, b.
electromechanical- in the form of punched
cards and c. electronic- by magnetic tape,
disk, and main memory of the computer. Data
should be stored only if the value of having
them in the future exceeds the storage cost.
J. Retrieving
• Recovering stored data and/ or
information when needed is the
retrieving step. Retrieval methods
range from searches made by file
clerks to the use of quick responding
inquiry terminals that are connected
directly to a computer .
K. Feedback
• Feedback is the comparison of the
outputs. and the goal set in advance
; any discrepancy is analyzed,
corrected, and feedback to the
proper stage in the processing
operation.

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Area's of data processing

  • 2. Business data processing is characterized by the need to established, retain, and process files of data for producing useful information. Generally, it involves a large volume of output. For example, a large retail store must maintain a record for each customer who purchases on account. Business Data Processing (DBP)
  • 3. Scientific Data Processing (SDP) • Data processing involves a limited volume of input and many logical or arithmetic calculations.
  • 4. • A data processing procedure normally consists of number of basic processing operations performed in some order. The means of manual, electromechanical, or electronic methods are used. Many businesses find that the best solution to their processing requirements is to use a combination of methods. Data Processing Operations
  • 5. A. Recording B. Verifying C. Duplicating D. Classifying E. Sorting F. Calculating G. Summarizing and Reporting H. Merging I. Sorting J. Retrieving K. Feedback
  • 6. A. Recording • Recording refers to the transfer of data onto some form or document. It relatives to the documentation of intermediate figures and facts resulting from calculations.
  • 7. B. Verifying • Since recording is usually a manual operation it is important that recorded data be carefully checked for any errors. This operations called verifying.
  • 8. C. Duplicating • It is sometimes necessary or desirable to copy or duplicate data. This operation consists in reproducing the data onto many forms or documents. Duplicating maybe done while the data being recorded manually, or it may be done afterwards by some machines.
  • 9. D. Classifying • This operation separates data into various categories. Identifying and arranging items witch like characteristic into groups or classes is called classifying
  • 10. E. Sorting • Arranging data in a specific order is called sorting. After the data are classified, it is usually necessary to arrange or rearrange them in a predetermined sequence to facilitate processing. Sorting is done in an alphabetic or numeric order and the data item which determines the sorting is called the key. Numeric sorting usually requires less time than alphabetic sorting in machine-based processing systems and it therefore generally used.
  • 11. F. Calculating • Arithmetic manipulation of the data is known as calculating. It is a crucial phase of data manipulation, because the outcome of this operation becomes part of the output. In the calculation of an employee's pay.
  • 12. G. Summarizing and Reporting • In this operation, a collection of data is condensed and certain conclusions from the data are represented in a meaningful format. To be a value, data must often be condensed or sifted so that the resulting output reports will be clear, concise and effective. Reducing masses of data to a more usable form is called summarizing.
  • 13. H. Merging •This operation takes two or more sets of data, all sets having been sorted by the same key, and puts them together to form a single sorted set of data
  • 14. I. Storing • Placing similar data into files for future reference is storing. Storage is done by any o the following methods; a. manual - such as in a ledger book, b. electromechanical- in the form of punched cards and c. electronic- by magnetic tape, disk, and main memory of the computer. Data should be stored only if the value of having them in the future exceeds the storage cost.
  • 15. J. Retrieving • Recovering stored data and/ or information when needed is the retrieving step. Retrieval methods range from searches made by file clerks to the use of quick responding inquiry terminals that are connected directly to a computer .
  • 16. K. Feedback • Feedback is the comparison of the outputs. and the goal set in advance ; any discrepancy is analyzed, corrected, and feedback to the proper stage in the processing operation.