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CMPF124 Basic Skills For Knowledge Workers
Chapter 1 – Part 1Chapter 1 – Part 1
Introduction To Windows Operating Systems
Introduction To Windows Operating Systems
CMPF 112 : COMPUTING SKILLS
ObjectivesObjectives
• At the end of the lesson, you should be able to :– describe the concept and functions of an
operating system (OS)
– describe the 3 categories of OS
– differentiate among different versions of Microsoft Windows
What Is An Operating System ?What Is An Operating System ?
• Serves as intermediary between hardware and applications software
• Handles technical details without user intervention
• A Collection of programs– Systems software– Kernel– Utilities– Device drivers– Language translators
OS FunctionsOS Functions
• Determines which applications should run in what order and how much time should be allowed for each application before giving another application a turn (in multitasking OS).
• It manages the sharing of internal memory among multiple applications.
• It handles input and output process.• It sends messages to each application or interactive user about
the status of operation and any errors.• It can offload the management of what are called batch jobs so
that the initiating application is freed from this work (i.e. print spool).
• It can manage how to divide the program (in parallel processing).
Operating System CategoriesOperating System Categories
• Three basic categories
– Embedded OS• Used in handheld computers, Stored within device in Read-Only
Memory
• Windows CE (embedded compact), Palm OS, Android, Symbian, NetBSD
– Network OS Controls and coordinates linked computers
• Novell NetWare, Windows NT Server, UNIX,
WINDOWS Server 2012
– Stand-alone Desktop/ Personal Computer Operating system • Controls a single desktop or laptop computer• Client operating system• MS-DOS, Windows Vista, 7, 8, Mac OS X, Linux
MS-DOSMS-DOS
• Uses a command-line interface– Screen provides prompts for user– User types commands
• Not user-friendly
Microsoft WindowsMicrosoft Windows
• Most popular OS for personal computer
• Designed for INTEL processors
• Active Desktop– Graphical user interface
to OS
• Windows XP, Windows 2003, Vista, Windows 7, Windows 8
• Windows CE
Apple MacOSApple MacOS
• Runs on Macintosh computers
• Designed for PowerPC microprocessors
• OS X Mountain Lion ->Latest version OS
• First commercially successful GUI– Has served as the
model for Windows and other GUI products developed since then
UNIXUNIX
• Originally ran on mainframe
and minicomputers
• Used for large servers on
the Web
• Popular alternative to
Windows
• Several versions available
– Solaris 8
– Linux
Windows 98 GUI
copyright image from http://www.harding.edu/fmccown/gui/guitour.html
WINDOWS 98WINDOWS 98
Windows XP GUI
copyright image from http://www.harding.edu/fmccown/gui/guitour.html
WINDOWS XPWINDOWS XP
Windows Vista GUI
copyright image from http://www.harding.edu/fmccown/gui/guitour.html
WINDOWS VISTAWINDOWS VISTA
WINDOWS 7WINDOWS 7
Google Chrome OSGoogle Chrome OS