Microsoft Windows is a family of graphical operating systems developed by Microsoft. Active versions include Windows NT, Windows Embedded, and Windows Phone. The first version, Windows 1.0, launched in 1985 to compete with Apple. Windows 3.0, released in 1990, achieved commercial success. Subsequent major versions included Windows 95, 98, XP, Vista, 7, 8, 8.1, and 10, with each release adding new features, updating the interface and addressing issues from prior versions. The most recent, Windows 10, launched in 2015 and incorporated elements from both Windows and Windows Phone to provide a unified experience across devices.

1. Peeping
Inside
Windows…

2. An Inside View
Microsoft Windows or Windows is a
metafamily of graphical operating
systems developed, marketed, and sold
by Microsoft.
Active Windows families include Windows
NT, Windows Embedded and Windows
Phone; Defunct Windows families include
Windows 9x and Windows Mobile.

3. Birth of Windows
 The history of Windows dates
back to September 1981,
when Chase Bishop, a
computer scientist, designed
the first model of an
electronic device and project
"Interface Manager" was
started.
 It was announced in
November 1983 (after
the Apple Lisa) under the
name "Windows“.

4. EARLY DAYS…
 Windows 1.0 was released on November 1985.It
was to compete with Apple's operating system.
Windows 1.0 was not a complete operating
system.
 Components included Calculator, Calendar,
Clock, Notepad, Paint, Reversi,Terminal,Write
and Control panel.
 Windows 2.0 was released in December 1987
and was more popular than its predecessor. It
introduced the terminology of "Minimize" and
"Maximize",

5. 
 Windows 3.0 / 3.1 released in 1990, improved the
design, because of virtual memory and loadable
virtual device drivers .
 It also featured improvements to the user
interface. Microsoft rewrote critical operations
from C into assembly.
 It is the first Windows version to achieve broad
commercial success, selling 2 million copies in
the first six months.
WINDOWS 3/3.1

6. WINDOWS NT [9X/2000/ME]
In September 2000, Microsoft introduced
Windows ME (Millennium Edition), which
upgraded Windows 98 with enhanced
multimedia and Internet features. It also
introduced the first version of System Restore
On 25 June 1998, Microsoft released Windows 98.
It included new hardware drivers and better
support for the FAT32 file system which allows
support for disk partitions larger than the 2 GB
maximum accepted by Windows 95.

7. WINDOWS XP
WindowsXP wasproducedbyMicrosoftaspartof
theWindowsNTfamilyofoperatingsystems and
releasedonAugust24,2001.
Itintroduced redesignedGUIandwasthefirst
versionofWindowstouseproductactivation inan
efforttoreducesoftwarepiracy.
 WindowsXPremainedpopularevenafterthe
releaseofnewerversions

8. In 2005 , Microsoft launched “Longhorn” ,
a Metro-OS project which in 2007 was
called “Windows Vista”. It was the first
step towards an all new environment but
it failed to gain public dominance.
New features of Windows Vista include an
updated GUI and visual style, a new
search component called Windows Search,
redesigned networking, audio, print and
display sub-systems, and new multimedia
tools including Windows DVD Maker.

9.  On July 22, 2009, Windows 7 was released
to the public .Windows 7 was intended to be
a more focused, incremental upgrade to the
Windows line.
 features were added to the operating
system, including libraries and support
for multitouch input.
 A new "Action Center" interface was also
added to provide an overview of system
security and maintenance information.
 Windows 7 also shipped with updated
versions of applications, including Internet
Explorer, Windows Media Player,
and Windows Media Center.
Windows Phone 7

10. WINDOWS 8/8.1
 Windows 8, was released on
October 26, 2012. Changes were
made on Windows 8, These
changes include the Start screen,
which uses large tiles that are
more convenient for touch
interactions and allow for the
display of continually updated
information, and a new class of
apps which are designed
primarily for use on touch-based
devices.

11. WINDOWS 10
On September 30, 2014, Microsoft announced Windows 10 as the
successor to Windows 8.1. It will be released in late 2015 and addresses
shortcomings in the user interface first introduced with Windows 8..
Changes include the return of the Start
Menu, a virtual desktop system, and the
ability to run Windows Store apps within
windows on the desktop rather than in
full-screen mode.

12. A Presentation By-
Anish Ranjan Jha
A 12
Roll – 1405285
Branch – Computer Science and Engineering