Data and Database

Data

→ Data is a raw facts and figures which may or may not have meaning.

→ It refers to any piece of information that can be collected, stored and analyzed.

→ Word "Data" is originated from the word "Datum" that means "Single piece of information". 

→ Data is measured in terms of bits and bytes. 

→ Data can be processed to extract meaningful information. 

→ It can take various form, including numbers, text, images and sounds.

Types of data

1. Structured Data: This types of data is organized in a predefined manner, typically in rows and columns, making it easily searchable and analyzeable.

2. Unstructured Data: This types of data does not have a predefined format. It includes format like text documents, images, video and social media posts.

Database

    Database is a structured collection of data that is stored and organized in a way that allows for efficient retrieval and manipulation of information. Database is usually controlled or managed by a Database Management System (DBMS) which allows to create, read, update and delete data efficiently.

→ Database is used to store, organize and extract data.

→ Database may have single or multiple table and can be computerized or non-computerized.

→ Data in database are organized in rows and columns.

→ The primary purpose of a database is to store data in a way that it can be easily retrieved and manipulated.

→ Example: Telephone directory, marks ledger, attendance register, dictionary, salary sheet, etc