Transcript Chapter 4 System Software Professor Michael J. Losacco CIS 1150 – Introduction to Computer Information Systems.

Chapter 4
System Software
Professor Michael J. Losacco
CIS 1150 – Introduction to Computer Information Systems
Overview
Chapter
4
Discuss the Types of System Software
Describe Operating System Functions
Describe Operating System Features
Discuss Mobile Operating Systems
Discuss Desktop Operating Systems
Describe the Purpose of Utilities
Describe Device Drivers
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System Software
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4
Collection or System of Programs
Handles Technical Details of Computer
Types
Operating System
Utilities
Device Drivers
Language Translators
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Operating Systems
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4
AKA Software Environment
Examples:
Windows 8, Mac OS X
Group of Programs
Coordinates Hardware Resources
For All Computer Activities
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Operating System Functions
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4
Manage Computer Resources
Coordinate Memory, Processing, Storage
Monitor System Performance
Provide Security
Start the Computer
Provides User Interface
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Operating System Functions
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Runs Applications
Multitasking
Switch Between Applications Running in Memory
Multiuser
Two or More Users Run Same Program
Multiprocessing
Multiple CPUs Running at Same Time
Fault-tolerant
Duplicate Components
Hard Disk, Memory
Can Operate Even if Component Fails
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Operating System Features
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4
Booting
Starting / Restarting Computer
Cold Boot
Turning on Computer from Off State
Warm Boot
Restarting Computer that is Already On
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Operating System Features
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4
Booting Mechanics
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Operating System Features
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Desktop
Provides Access to Computer Resources
Icons
Pointer
Windows
Menus
Tab
Divide Menus into Major Activity Areas
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Operating System Features
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Dialog Boxes
Provide Information or Request Input
Help
Gesture Control
Control Operations with Finger Movements
Swiping, Sliding, Pinching
Files
Store Data and Programs
Folder
Stores Related Files
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Operating System Categories
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4
Embedded Operating Systems
Smartphones
Cable TV Tuner Boxes
Video Game Systems
Network Operating Systems
Control / Coordinate Networked Computers
Stand-alone Operating Systems
Control Single Computer
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Mobile Operating Systems
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4
Embedded Operating System
Types
Worldwide Smart Mobile Device Market Share
2.8% 1.1%
Android
15.4%
BlackBerry OS
80.7%
iOS
Android
Windows Phone
Apple
Microsoft
Other
Gartner 2014
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Desktop Operating Systems
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4
Windows 8
Mac OS X
UNIX
Linux
Chrome OS
Market Share
Microsoft Windows
90.7%
Apple Macintosh
7.7%
Linux
1.6%
NetMarketShare 3/14
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Virtualization
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Run Multiple OS on a Single Machine
Requires Virtualization Software
Configures Virtual Machines
Treated as Separate Computers
Host Operating System
Guest Operating System
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Utilities
Chapter
4
Programs to Make Computing Easier
Types
Diagnostic
Antivirus
Backup
File Compression
Disk Cleanup
Disk Defragmenter
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Device Drivers
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4
AKA Driver
Allows Communication
Between Device and OS
Appropriate Drivers Automatically Installed
For Most Devices
Windows Update
Automatically Updates Drivers
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Careers in IT
Chapter
4
Support Specialist
Provide Technical Support
To Customers and Other Users
Manage Everyday Technical Problems
Resolve Common Networking Problems
Advanced Associate's or Bachelor's Degree
Good Analytical and Communication Skills
Annual Salary of $31,000 - $58,000
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