Summary

Summary Full In-Depth CAT Notes Grade 11 and 12

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Course
Computer Applications Technology

Institution
12th Grade

Full In-Depth (Computer Applications Technology) CAT Notes for All Sections. It includes tips for use to effectively use these notes and contains all information needed for the Grade 11 and Grade 12 IEB syllabus. It gives an outline on all topics listed in the IEB SAGS (Subject Assesment Guidel...

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Uploaded on October 6, 2024
Number of pages 78
Written in 2024/2025
Type Summary

Institution
12th Grade
Course
Computer Applications Technology
Schooljaar 200

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COMPUTERS
APPLICATIONS
TECHNOLOGY

FULL NOTES
GRADE 12

1

, Table of Contents

TIPS FOR USE ....................................................................................................................................................... 6

THE INFORMATION PROCESSING CYCLE ................................................................................................................ 7

MODULAR DESIGN ............................................................................................................................................... 7

SYSTEM UNITS ..................................................................................................................................................... 8

SECONDARY STORAGE ....................................................................................................................................... 12

PRIMARY STORAGE VS SECONDARY STORAGE .................................................................................................... 16

INPUT DEVICES .................................................................................................................................................. 16

OUTPUT DEVICES ............................................................................................................................................... 21

WHAT MAKES IT ALL WORK? .............................................................................................................................. 24

UPGRADE VS. REPLACE....................................................................................................................................... 24

TROUBLESHOOTING HARDWARE PROBLEMS ...................................................................................................... 25

HARDWARE THEFT AND PROTECTION ................................................................................................................. 28

DIFFERENT COMPUTER TYPES ............................................................................................................................ 28

CATEGORIES OF USERS ....................................................................................................................................... 31

INPUT AND OUTPUT FOR PHYSICALLY CHALLENGED USERS ................................................................................. 32

INPUT AND OUTPUT HEALTH ISSUES .................................................................................................................. 32

GREEN COMPUTING ........................................................................................................................................... 33

UNINTERRUPTIBLE POWER SUPPLY .................................................................................................................... 33

NEWER TECHNOLOGIES ...................................................................................................................................... 33

APPLICATION SOFTWARE VS SYSTEM SOFTWARE ............................................................................................... 35

THE OPERATING SYSTEM .................................................................................................................................... 35

THE INTERFACE .................................................................................................................................................. 35

2

,THE DESKTOP ..................................................................................................................................................... 35

OTHER WINDOWS COMPONENTS....................................................................................................................... 36

INTEGRATED SOFTWARE .................................................................................................................................... 37

LICENSING AGREEMENTS ................................................................................................................................... 37

PROPRIETARY SOFTWARE .................................................................................................................................. 37

FREE SOFTWARE ................................................................................................................................................ 37

TYPES OF APPLICATION SOFTWARE .................................................................................................................... 38

TYPES OF SYSTEM SOFTWARE ............................................................................................................................ 39

WINDOWS SECURITY SCREEN ............................................................................................................................. 39

TASK MANAGER ................................................................................................................................................. 40

SAFE MODE ....................................................................................................................................................... 42

SOFTWARE INSTALLATION ................................................................................................................................. 42

STEPS WHEN INSTALLING SOFTWARE ................................................................................................................. 43

UPDATING YOUR SOFTWARE ............................................................................................................................. 44

UNINSTALLING SOFTWARE ................................................................................................................................. 44

COMPATIBILITY ISSUES ...................................................................................................................................... 45

SOFTWARE BUGS ............................................................................................................................................... 45

FIXING SOFTWARE PROBLEMS............................................................................................................................ 46

TROUBLESHOOTING USING UTILITY SOFTWARE .................................................................................................. 46

BACKUP AND RECOVERY .................................................................................................................................... 48

SOFTWARE FOR PHYSICALLY CHALLENGED USERS ............................................................................................... 48

ARTIFICIAL INTELLIGENCE (AI)............................................................................................................................. 48

FILE MANAGEMENT ........................................................................................................................................... 49

3

, FILE NAMES ....................................................................................................................................................... 50

FILE SEARCH....................................................................................................................................................... 51

FILE CONVERSION .............................................................................................................................................. 51

SMALL NETWORKS ............................................................................................................................................. 52

LARGER NETWORKS ........................................................................................................................................... 53

SETTING UP A NETWORK .................................................................................................................................... 53

HARDWARE ....................................................................................................................................................... 54

CONNECTION METHODS .................................................................................................................................... 55

NETWORK TOPOLOGIES ..................................................................................................................................... 56

BASIC NETWORK SECURITY ................................................................................................................................ 58

ETHICAL USE OF NETWORKS ............................................................................................................................... 58

THE INTERNET .................................................................................................................................................... 59

INTERNET SERVICE PROVIDERS (ISP) ................................................................................................................... 59

CONNECTING TO THE INTERNET ......................................................................................................................... 60

1. FIXED INTERNET ACCESS.............................................................................................................................. 60

2. MOBILE INTERNET ACCESS – CELLULAR TECHNOLOGY .................................................................................. 60

INTERNET SERVICES ........................................................................................................................................... 62

THE WORLD WIDE WEB (WWW) ......................................................................................................................... 66

BROWSING AND SEARCHING .............................................................................................................................. 67

INTERNET BROWSER FEATURES .......................................................................................................................... 68

SURFACE, DEEP AND DARK WEB ......................................................................................................................... 69

CRYPTOCURRENCIES .......................................................................................................................................... 70

COMPUTER CRIME ............................................................................................................................................. 70

4

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