What is Data? Data

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