Wednesday, December 25, 2013

What is Data,What is information,What is Data Proocessing,What is meta Data,What is Database, What is DBMS(Database Management system)

Data: Data is a collection of unprocessed items. Data is information required by the computer to be able to operate or to put it the other way information we put into the computer is called data. It is gathered from any source but cannot be organised. Some examples of data are Prices, Weights, Costs, Number of items sold or purchased etc.
The term data is often used to distinguish binary machine-readable information from textual human-readable information. For example, some applications make a distinction between data files (files that contain binary data) and text files (files that contain ASCII data).In database management systems, data files are the files that store the database information, whereas other files, such as index files and data dictionaries, store administrative information, known as metadata.

Information: It is a well organised data which we get after processing of data and it helps in decision making. The data, that have been processed in such a ways so as to increase the knowledge of the person who uses the data is known as information.

Data Processing/Information Processing/Electronic Data Processing: The process of converting the facts into meaningful information is known as Data processing. It is also known as Information processing. The objective of data processing is to get the desired information from any raw data.


Meta Data: The Data about the Data is known as metadata. In other words, The Data that describes the properties of other data is known as Metadata. Metadata is a term for the descriptive information embedded inside an image or other type of file. For example, an image may include metadata that describes how large the picture is, the color depth, the image resolution, when the image was created, and other data. Metadata is used for images, videos, spreadsheets and web pages. The use of metadata on web pages can be very important. Metadata for web pages contain descriptions of the page’s contents, as well as keywords linked to the content. 

Data Base: A database is an organized collection of data that is specially organized for rapid search and retrieval by a computer. For example, modeling the availability of rooms in hotels in a way that supports finding a hotel with vacancies. Some other examples are Library Management, Attendance system , Bank, Hospital, Company etc.

Data Base Management System (DBMS):
A collection of software for organizing the information in a database that might contain routines for data input, verification, storage, retrieval, and combination . In simple words a software that provides an efficient environment to help us in STORING and RETRIEVING the Data Base of an enterprise.
Some DBMS examples include My SQL, Postgre SQL, Microsoft Access, SQL Server, FileMaker, Oracle, RDBMS, DBASE, Clipper, and FoxPro.

Since there are so many database management systems available, it is important for there to be a way for them to communicate with each other. For this reason, most database software comes with an Open Database Connectivity (ODBC) driver that allows the database to integrate with other databases.

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