Question

_____ fetching data from the storage devices, for its processing as per the user requirement. ​

Answer 1

Answer:

Data retrieval is fetching data from the storage devices, for its processing as per the user requirement.

Explanation:

What is data?

Data, in terms of a layman, can be defined as information. The information can be of any type, from science and technology, or history.

Any data which needs processing, should at first be captured, then stored at a relevant place, and finally, when there's a need for that data, it is retrived.

The pre-processing steps of accessing data:

1. Data capturing: This process involves gathering data from various sources as per the user requirement. The source can be from the internet, pages of a book that are scanned and stored digitally, or barcode readers, sensors, satellites, etc.
2. Data Storage: Just as we store our important papers in a dedicated file in a locker, the digital data is also stored by the computer in a dedicated folder in its hard drive or in cloud servers directed by a path as instructed by the user.
3. Data retrieval: Data is a huge gallery of information about a single thing. For e.g., a person's demographic information includes his name, DOB, gender, address, race, place of birth, etc., but in the case of filing a request for a PAN card in India, only DOB, name, and, address is required along with other data.
   The relevant data is thus retrieved from where it was stored and then send to processing.

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