OBJECTIVES :
Ø
Define an operating system
Ø Describe the start-up process and shutdown
options on computers and mobile devices
Ø Explain how an operating system provides a
user interface, manages programs, manages memory, and coordinates tasks
Ø Describe how an operating system enables
users to configure devices, establish an Internet connection, and monitor
performance
Ø Identify file management and other tools
included with an operating system, along with ways to update operating system
software
Ø Explain how an operating system enables
users to control a network or administer security
Ø Summarize the features of several desktop
operating systems
Ø Briefly describe various server operating
systems
Ø Summarize the features and uses of several
mobile operating systems
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Operating
System
- set of
programs containing instructions that work together to coordinate all the
activities among computer and mobile device hardware
|
FUNCTIONS
Starting
Computers and Mobile Devices
ü
If a computer or
mobile device is off, you press a power button to turn it on.
User Interface (UI)
ü
controls how you
enter data and instructions and how information is displayed on the screen
Manage programs
ü
Single tasking
and multitasking
ü
Foreground and
background
ü
Single user and
multiuser
Manage memory
ü A driver is a small program that tells the operating system how to
communicate with a specific device
Establish an
Internet connection
Provide file
management and other device or media-related tasks
ü
File manager,
Search, Image Viewer, Uninstaller, Screen Saver, File Compression, PC Maintenance
Automatic update
ü Provides new features or corrections
to the program
|
|
TYPES OF OPERATING SYSTEMS
Desktop
Server
Mobile
|
|
Desktop Operating System
- complete operating system that works on
desktops, laptops, and some tablets (Windows, Mac OS, UNIX, Linux)
Server Operating System
- Windows Server, OS
X Server, UNIX, Linux
Mobile
Operating Systems
Operating system on mobile devices and many consumer
electronics
- Android - open source, Linux-based mobile operating
system designed by Google for smartphones and tablets
- iOS - proprietary mobile operating system specifically made
for Apple’s mobile devices
- Windows
Phone - proprietary mobile operating system that runs on some smartphones by
Microsoft
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