2. Objectives
At the end of this presentation, learners will:
Define a file
Explain the purpose for a filing system
Describe how an operating system stores
files
Identify the two different parts of a file
Differentiate between file and file extension
Identify file types
Describe a database and database
management system
3. FILES
Files are a collection of data,
information, or programmes
An operating system organizes and
stores files for effective operation of the
system.
An effective filing system allows for
faster operation and easy retrieval.
4. File Naming
Files are stored by names and
extension. This allows the user to easily
store and retrieve information in a file.
Assignment 2.docx
File Name: the
name the user
assigns to the file
File Extension: indicates
to the computer what
program to open the file
with
5. File Types
File types are assigned based on the file
extension.
Docx
• Microsoft Office
• Text File
Windows Video File
• Microsoft
• Video File
Portable Document Formant
• Adobe Systems
• Text File
Compressed Audio File
• Moving Pictures Expert Group
• Audio/Music File
Hypertext Markup Language
• World Wide Web Consortium
• Internet Text File
Click for a complete
list of File Types
6. File Management
Files should be stored in folders for easy
management and retrieval
Parent Folders: Main Folders for storage
Subfolders: Folders within a parent folder
9. Databases
A collection of data or list of information
that is organized in a computer program
for easy retrieval; it is an electronic filing
system and is usually organized in table
formation
10. Databases are…
Organized by Field, Records, File
Fields
A single piece of
information
Names of
Students
Records
Complete set of
fields
Date of Birth
Address
Phone Numbers
Photo
Files
Collection of
Records
June 4, 2015
123 Nowhere
234-5786
Definition
Examples
11. Data Basse Management
Systems
A data base management system
(DBMS) is a system used to manage
and protect data
Wikibooks(2015)
12. Advantages /Functions of
Data Base Management
Systems
It controls redundancy
It maintains the reliability of the stored
information
It restricts access
It can share data
It backups or recover data
Wikibooks(2015)
13. References
Wikibooks: Open Books for an Open World (2015). Introduction to computer
information system: Database. Retrieved from
https://en.wikibooks.org/wiki/Introduction_to_Computer_Information_System
s/Database