unit 4 file and data management
TRANSCRIPT
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FILE AND DATA MANAGEMENT
An E-Tutor Presentation
Sosuhira Liverpool-Morris
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ObjectivesAt 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
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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.
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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
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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
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File ManagementFiles should be stored in folders for easy
management and retrieval
Parent Folders: Main Folders for storage
Subfolders: Folders within a parent folder
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•Parent Folders
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•Subfolders
Subfolders within
the parent folder,
documents
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DatabasesA collection of data or list of information that is organized in a computer programfor easy retrieval; it is an electronic filingsystem and is usually organized in table formation
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Databases are…Organized by Field, Records, File
Fields
A single piece of information
Names of Students
Records
Complete set of fields
Date of BirthAddress
Phone NumbersPhoto
Files
Collection of Records
June 4, 2015123 Nowhere
234-5786
Definition
Examples
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Data Basse Management Systems
A data base management system (DBMS) is a system used to manage and protect data
Wikibooks(2015)
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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)
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ReferencesWikibooks: Open Books for an Open World (2015). Introduction to computer
information system: Database. Retrieved from https://en.wikibooks.org/wiki/Introduction_to_Computer_Information_Systems/Database