Transcript IC3 Lesson 5

Computer Literacy for
3
IC
Unit 1: Computing Fundamentals
Project 5: Identifying
Operating System
Functions
Copyright © 2006 Prentice-Hall. All rights reserved.
1
Objectives
 Identify the purpose and functions
of an operating system
 Identify the capabilities, limitations,
and common problems
 Identify functions of the control panel
 Use the control panel
 Install software
 Identify common installation problems
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2
Identifying Differences
Operating system
Environment
Works with processor
and other hardware
Application program
Makes use of the environment
Performs specific tasks
 Write a document
 Draw a picture
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3
Types of Operating Systems
 Mainframe OS – UNIX
 Personal computer OS
 DOS
 Microsoft (MS-DOS) & IBM (PC-DOS)
 Graphical user interface (GUI)
 Windows, Apple, and Linux
 Tablet portable OS
 Personal digital assistant OS
 Palm OS, Windows CE, etc.
 Cell phone OS
 SmartPhone and Symbian
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4
Limitations Imposed
 Filenames
DOS – 8.3 convention
Windows 95 & newer – 255 characters and 3letter file extension
Mac (Apple) – Long filenames without extensions
 Application software
Usually platform specific
Extensible Markup Language (XML) – Allows
document transfer between platforms
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5
Common Problems
 Corrupted Files
Noticeable slowdown
System restore or recovery disks
See if you can figure out why
 Got a virus? – Restore will help
 Hard drive failing? – Restore will not help
 Back up data soon!
 Security
 Unusual hardware combinations
 Improper logon procedures
 Use of username and password
 Forgot the password
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6
Functions of the Control Panel
 Part of the Windows OS
 Book uses XP Home edition
 Category vs. Classic View
 Changes system settings





Appearance
Add and remove software
Set up printers
Add users
Activate automatic updates
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Before Using the Control Panel
 Experimentation has
been known to get
people in trouble
 Back up important data
 Create a restore point
 Start  All Programs 
Accessories  System
Tools  System Restore
 Create restore points
when things are working
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8
Using the Control Panel
 Category view
Date, Time, Language, and Regional Options
 Change the date and time – Set computer clock




Time zone
Current date
Current time
Auto synchronize clock;
requires Web access
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9
Changing Display Settings
 Category view
 Appearances & Themes
Change the screen resolution – Video options
(Vary depending on video card)
 Color quality
 Pixels displayed - Resolution
 Extra monitors
 Specific video cards can be
run in tandem to create a
multimonitor display
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10
Additional Display Options
 In Display Properties dialog box
 Appearances tab
Color scheme
Font size
 Useful for laptops
 Screen Saver tab
Prevents damage to monitor
 Ever seen an ATM machine with a
faint image that never goes away?
Power management
 Shut off monitor and hard drive options
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11
Desktop and Themes
 What’s the difference?
Desktop tab
 Change background image
 Customize desktop
 Add missing icons

My Computer, My Documents,
Internet Explorer, and My Network Places
 Desktop Cleanup Wizard

Removes unused shortcuts
from the desktop
Theme tab
 Select a team of sounds, icons,
and a background image
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12
Changing Audio Volume, Mouse,
and Keyboard Settings
Printers and other hardware
Often overlooked available options:
 Mute the sound
 Adjust microphone sensitivity
 Reverse mouse buttons
 Change mouse arrow appearance
 Key repeat rate
 Set up special keyboard-specific function buttons
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13
Printers
Printers and other hardware
View installed printers
Add a printer
 Local printer
 USB or parallel
 Network printer
 Requires knowledge
about networking
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14
Prior to Installing Software
 Need administrative privileges
 Need install files
Compact disc – Retail/burned
Downloaded – Trial/shareware/freeware
 Are you legal?
Copyright infringement is a serious problem
Fines of up to $150,000 per incident have been
awarded for willful copyright infringement
Read software licensing agreements
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15
Installing Software
From the Control Panel
Add or Remove Programs
Add New Programs
CD or floppy
Insert CD and/or click Next
From a File – Press Browse
Follow the on-screen instructions
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16
Common Installation Problems
 Lack of permission
 Security settings
 Partially uninstalled programs
 Damages or lost installation discs
 Reinstalling registered software
 Installation program does not start
automatically
 Installation stops
 Conflicts with other programs
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17
End-of-Project Exercises
 Multiple Choice
 Discussion
 Skill Drill
 Using a Character-Based Operating System
 Checking System Restore Points
 Viewing File Dates and Times in Detail View
 Challenge
 Synchronizing System Clock with Internet Server
 Checking for Updates
 Using an Icon on the Start Menu to Start a Program
 Discovery Zone
 Learning about the Microsoft/Apple and Linux/UNIX Lawsuits
 Controlling Programs that Run Automatically at Startup
 Using Windows Task Manager to Stop Stalled Programs
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18
Summary
 Learned about the capability of operating systems
and how to perform common operations in Windows
XP, such as installing software and printers using
the Control Panel.
 Learned about the differences between characterbased and graphic-based operating systems and
how to solve problems related to operating systems
and software installation.
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19
Questions?
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