Database_Systems and its components.pptx

Database System
A database system is a collection of data as well as programs required to manage that data.
Components of Database Systems
1. Data
It is a collection of facts stored in the database.
2. Hardware
Physical components of a computer system.
3. Software
Collection of programs used by computer within a database system.
4. Personnel
People related to the database system.

1. Database Systems Overview of Major Components

2. Objectives Define database system and describe its four major components: 1. Data 2. Hardware 3. Software 4. Personnel

3. Database System A database system is a collection of data as well as programs required to manage that data. A database system is a computerized record-keeping system. The main purpose of this system is to maintain data and provide it to the user when required.

4. Components of Database Systems The four major components of database systems are: 1. Data 2. Hardware 3. Software 4. Personnel

5. Data Data is the most important component of a database system. It is a collection of facts stored in the database. The purpose is to store, maintain, and process data for the user.

6. Hardware Physical components of a computer system. Used for tasks such as input, output, storage, and processing. Components include: Secondary Storage I/O Devices Processors Main Memory

7. Software Collection of programs used by computer within a database system. The most important software is DBMS. Three types of software: Operating System : Manages all hardware components and enables software to run. DBMS Software: Manages the database system. Application Programs: Access and process data in the database.

8. Personnel People related to the database system. Types of personnel: Database Administrator: Manages the whole database system. Application Programmer: Writes application programs to access data. End Users: Use application programs for different operations on the database.