Introductory visualizing technology 5th by debra geoghan chapter 5

PowerPoint Presentation to Accompany

Chapter 5

System Software


Objectives
1. Explain What an Operating System Does
2. Compare Desktop Operating Systems
3. Configure a Desktop Operating System
4. Compare Specialized Operating Systems
5. Compare the Most Common Network Operating
Systems
6. List and Explain Important Utility Software
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Explain What an Operating System Does

Objective 1

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System Software
 System software

 Software that makes the computer run

 Operating system
Most important type of system software
Provides user with the interface to communicate with
hardware and other software
A personal computer is useless without an operating
system
Objective 1

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Modern Operating System
Provides User interface (GUI)
Manages resources (multitasking)
Controls hardware (PnP)
Interacts with software (API)

Objective 1

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Compare Desktop Operating Systems

Objective 2

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Compare Desktop Operating Systems
Microsoft Windows
 Most common desktop operating system
 Approximately 20 percent of PCs run a version of
Windows
 Windows 8 introduced a totally new interface

Objective 2

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Compare Desktop Operating Systems
Mac OS X
 First released in 1984; used a GUI; called Mac system
software
 OS X operating system
released in 2001
 Current version is OS X
El Capitan

Objective 2

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Compare Desktop Operating Systems
Linux
 Open source – the code
is publicly available
 Developed in 1991 by
Linus Torvalds
 Does not have a single
version but many
distributions (distros)

Objective 2

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Configure a Desktop Operating System

Objective 3

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Configure a Desktop Operating System
Configuring Your OS
• Settings charm - displays settings, help, and info for
the current app
• PC settings – enables the configuring of user accounts
and accessibility
• Control Panel – options
to configure a monitor, or
troubleshoot settings, hardware,
and software
Objective 3

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Configure a Desktop Operating System
System Preferences for a Mac
• System Preferences are accessed through the Apple
menu or the icon on the dock
• System Preferences in OS X are grouped into rows
• Preferences configure hardware settings, user
accounts, and customize the way your computer looks
and responds

Objective 3

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Configure a Desktop Operating System
User Accounts
Four types of Windows accounts:
Standard account - for everyday
computing

Child account – a standard account with
Family Safety turned on by default

Administrator account – making global
changes, installing software, and
configuring settings

Guest account – for temporary access

Objective 3

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Compare Specialized Operating Systems

Objective 4

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Specialized Operating Systems
Embedded vs. Mobile Operating
Systems
Embedded

Mobile

 Specialized and limited
functions
 Installed in:
GPS devices

 Full-featured
 Installed in:
Smartphones
Tablets

ATM machines
Communication systems
Car entertainment systems
Objective 4

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Specialized Operating Systems
Smartphone Operating Systems
 Apple iOS:
Proprietary - found only on Apple
devices

 Google Android:
Linux kernel
Found on devices by many
companies

 Microsoft Windows Phone:
Based on Windows Embedded CE
Found on devices by many
companies
Objective 4

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Compare the Most Common
Network Operating Systems

Objective 5

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Network Operating Systems

Objective 5

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Types of Networks
 Client-server – a network in which, upon login, the
user gets access to centralized services like printers
and file storage
School network

 Peer-to-peer – a network that does not require a NOS;
files and services are shared but not centralized
Home network

Objective 5

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List and Explain Important Utility Software

Objective 6

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Important Utility Software
Disk Utility Software
 Hard disk drives
Can be very large and hold a lot of
information
Important to keep your disks healthy to
protect your files
Formatting a disk
• Stores files in clusters (consisting of one or
more sectors) on the hard drive
• Sets up the file system
Objective 6

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Important Utility Software

Windows Utility Software
 Check Disk
Monitors health of the file system on a disk

 Optimize Drives
Rearranges fragmented files to improve efficiency

 Disk Cleanup
Looks for files that can be safely deleted to free up disk
space

Objective 6

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Important Utility Software
OS X Utility Software
 Disk Utility
Used to get information about the disks on your computer
Verify and repair a disk

 HRS+ file system
OS X’s HFS+ file system guards against fragmentation
Macs rarely need to be defragmented
OS X does not include a defragmenter utility

 No need for disk cleanup

Macs have daily, weekly, and monthly maintenance scripts
Objective 6

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Important Utility Software
Security Software
 Firewall
Blocks unauthorized access to a computer

 Antivirus Programs
Protects against viruses, Trojan horses, worms, and spyware

 Antispyware software
Prevents adware and spyware infections

 Malware
Software designed to be harmful or malicious
Objective 6

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Questions

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