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File processing system is the first computer-based approach to handle business application. In past many organization store data in files on magnetic tape or disk for future need or for modification if required.
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Showing posts with label Database Management (DBMS. Show all posts
Showing posts with label Database Management (DBMS. Show all posts
Wednesday, 13 May 2015
File Processing System
Posted by G.S.Ali on 08:58
File processing system is the first computer-based approach to handle business application. In past many organization store data in files on magnetic tape or disk for future need or for modification if required.
Thursday, 7 May 2015
What is Information?
Posted by G.S.Ali on 11:55
When data processed in meaningful form is called information. information is useful form of data. It is the output of a computer. It is used frequently. It is also important for decision making.
Why we need information?
- Knowledge derived from study, experience , or instruction.
- Communication of intelligence.
- Information is any kind of knowledge that is exchangeable amongst people, about things, facts, concepts, etc., in some context.
- Information is interpreted data
| Detail Example of information:
Some candidates
want to take admission so they will fill an admission form containing data
about their selves. When this data is organized and arranged by eligibility
criteria and admission rules a merit list will be formulated. This merit list
is in the form of information of certain students which are eligible for
admission.
Data
Name: Ali, Ayesha, Ahmad, Munir
Marks:10,5,2,8
Condition or Restriction for eligibility:
Merit calculation
If marks >=5 candidate is eligible
After Process
|
What is Data? Data
Posted by G.S.Ali on 11:38
A collection of Raw (facts,
figures, events and transactions) are called data. Raw mean unprocessed for of information. Data may be consist of letters, numbers, graphics, audio ,video, symbols and any thing which collected for some purposes. Data collected from different sources.
Example of sources or purposes.
·
Researchers who conduct market research
survey might ask member of the public to complete questionnaires about a
product or a service. These completed questionnaires are data.
Some candidates want to take admission
in university they will fill admission forms.
Above all are
unprocessed and unprepared which is needed to process and work more.
Why we need Data?
·
Facts,
statistics used for reference or analysis.
- Numbers, characters, symbols, images etc., which can be processed by a computer.
- Data must be interpreted, by a human or machine, to derive meaning
- Data is a representation of information
