Module 2Part I

Module 2Part I

Introduction To Windows Operating Systems

Intro & History

Introduction To Windows Operating Systems

Intro & History

Module 2 Pt 1 ObjectivesModule 2 Pt 1 Objectives

• 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 Operating Systems ?What Is Operating Systems ?

• Serves as intermediary between hardware and applications software

• Handles technical details without user intervention

• A Collection of programs– Operating system– 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

OS FunctionsOS Functions

• 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, Palm OS

– Network OS Controls and coordinates linked computers

• Novell NetWare, Windows NT Server, UNIX

– Stand-alone Desktop/ Personal Computer Operating system • Controls a single desktop or laptop computer• Client operating system• MS-DOS, Windows 2000, XP, Mac OS X, Linux

MS-DOSMS-DOS

• Uses a command-line interface– Screen provides prompts for user– User types commands

• Largely replaced by graphical user interfaces• Not user-friendly

Microsoft WindowsMicrosoft Windows

• Most popular OS for microcomputers

• Designed for Intel processors

• Active Desktop– Graphical user interface

to OS

• Windows XP, Windows 2003, Vista

• Windows CE

Apple MacOSApple MacOS

• Runs on Macintosh computers

• Designed for PowerPC microprocessors

• OS X ->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

History of Windows OSHistory of Windows OS

Year Event

1983 Microsoft Windows was announced November, 1983 and sells for $100.00.

1985 Microsoft Windows 1.0 was released November, 1985.

1987 Microsoft Windows 2.0 was released April, 1987.

1990 Microsoft Windows 3.0 was released May, 1990.

1991 Microsoft Windows 3.0 with multimedia was released October, 1991.

1992 Microsoft Windows 3.1 was released April, 1992 and sells more than 1 Million copies within the first two months of its release.

1992 Microsoft Windows for Workgroups 3.1 was released October, 1992.

1993 Microsoft Windows NT 3.1 was released August, 1993.

1993 The number of licensed users of Microsoft Windows now totals more then 25 Million.

1994 Microsoft Windows for Workgroups 3.11 was released February, 1994.

1994 Microsoft Windows NT 3.5 was released September, 1994.

History of Windows OSHistory of Windows OS

Year Event

1995 Microsoft Windows NT 3.51 was released June, 1995.

1995 Microsoft Windows 95 was released August, 1995 and sells more than 1 Million copies within 4 days.

1996 Microsoft Windows NT 4.0 was released August, 1996.

1996 Microsoft Windows CE 1.0 was released November, 1996.

1997 Microsoft Windows CE 2.0 was released November, 1997.

1998 Microsoft Windows 98 was released June, 1998.

1998 Microsoft Windows CE 2.1 was released July, 1998.

1999 Microsoft Windows 98 SE (Second Edition) was released May, 1999.

1999 Microsoft Windows CE 3.0 was released 1999.

2000 Microsoft Windows 2000 was released February 2000.

2000 Microsoft Windows ME (Millennium) released July 2000.

2001 Microsoft Windows XP released October 25th 2001

History of Windows OSHistory of Windows OS

Year Event

2001 Microsoft Windows XP released October 2001

Windows XP Professional

Windows XP Home Edition

Windows XP 64-bit Edition

2002 Windows XP Media Center Edition

2002 Windows XP Tablet PC Edition

2003 Windows Server 2003 released.Standard, Enterprise, Data Center and Web Edition

Jan 2007 The release of Windows Vista comes more than five years after the introduction of its predecessor, Windows XP, the longest time span between successive releases of Microsoft Windows.

February2008

Windows Server 2008, was released

Windows Timeline

Windows VISTA Windows Server 20082007 2008

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 VISTAWINDOWS VISTA

• Windows Vista is the latest operating system by Microsoft designed for home and office use.

• It contains new updates on the GUI and visual style and also an improvement in the search function.

• Even though Windows Vista has been around for quite sometime, there is some resistance in the uptake of Vista mainly due to the steep system requirements needed to run the system reliably.

• Also, some applications that run in Win XP are not compatible with Vista, requiring some software companies to rework their applications to be Vista compatible, i.e. Photoshop CS2 in XP but Vista Photoshop CS3.

Windows Vista GUI

copyright image from http://www.harding.edu/fmccown/gui/guitour.html

WINDOWS VISTAWINDOWS VISTA

Windows FeaturesWindows Features

• Long file names (up to 255 characters)

• Plug and Play– Makes installing

hardware components easier

• Object Linking and Embedding (OLE)– Allows user to embed or

link one document to another

Windows FamilyWindows Family

• Windows 9x– Windows 95– Windows 98– Windows Millennium Edition

(ME)• Corporate Market

– Windows NT (“New technology”)

– Windows 2000– Windows 2003

• Windows XP• Windows CE• Windows VISTA