A database system consists of data, hardware, software, and personnel, functioning as a computerized record-keeping system to manage and provide data to users. Data, as the core component, is stored and processed by hardware, which includes various physical components, and software, primarily a database management system (DBMS), that enables operations and access. Personnel such as database administrators, application programmers, and end users play vital roles in managing and utilizing 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.