What is OS
Windows 7 overview
Benefits of Windows 7
Flavors of Windows 7
Features of Windows 7
Difference between Win. 7 and Win. Vista
Steps to Install windows 7
An Operating System is an interface between user and
hardware of a computer system.
Goals of O.S :
• To make the computer system convenient to use.
• To use the computer hardware in an efficient manner.
Purpose of O.S :
The purpose of an operating system is to provide an environment
in which a user may execute programs.
Virtual file system
Graphical user interfaces
What is “windows 7”?
Most Recent version of Microsoft Windows
Windows 7 was released to Manufacturing on July
22,2009,and reached general retail availability on
Boot time is fast. On the same computer, Vista booted in
approximately 80 seconds. Windows 7 booted in 50 seconds.
That's about a 38% fast boot time with Windows 7 .
Applications load faster. With Vista it took approximately 30
seconds. Windows 7 loaded in 20 seconds
The installation is faster than Windows Vista
Performance : Windows 7 starts, shuts down, and resumes
from Standby faster than earlier versions of Windows.
Reliability :Reliability improvements in Windows 7 include
a Fault Tolerant Heap that resolves common memory
Application Compatibility :A key engineering goal for
Microsoft is that software that runs on Windows Vista will
run as well or better on Windows 7.
Device Compatibility : As with software, Microsoft set an
engineering goal that devices that work with Windows Vista will
also work with Windows 7—and has greatly expanded the list of
devices and peripherals that are being tested for compatibility
Security : Windows 7 delivers new capabilities to better protect
your security and privacy, and makes existing security features
such as User Account Control and Windows Defender easier to
Improved Battery Life : Improvements to power management in
Windows 7 will help extend the battery life of your mobile PC.
1 GHz 32-bit processor
1 GHz 64-bit processor
1 GB of RAM
2 GB of RAM
DirectX 9 graphics processor with WDDM driver
model 1.0 (For Aero)
HDD free space
16 GB of available disk
DVD drive (only to install from DVD/CD
20 GB of available disk
Windows 7 Starter Edition:
Will only be offered pre-installed by an OEM on new PCs
limited to specific types of hardware.
Only 3 simultaneous applications can be ran at a time.
Ability to join Home Group.
Improved taskbar abilities (Superbar) and Jump lists.
Windows 7 Home Basic:
Only available in emerging markets.
Missing Aero UI Tweaks.
Windows 7 Home Premium:
Available worldwide to OEMs and in retail.
Includes Aero UI Tweaks (Screen Docking, Windows
Media capabilities (Media Center, Media Streaming).
Windows 7 Professional:
Available worldwide to OEMs and in retail.
Includes all features of Premium.
Enhanced networking abilities.
Backing up Data and Encrypting Data.
Data protection and advanced networking support.
Windows 7 Enterprise:
Not available in retail or by OEMs, only available
through volume licensing.
Includes features of Professional
Includes Advanced Data Protection and IT tools
(Branch Cache, Bit Locker, AppLocker).
· Improved Remote Access (without the need of VPN
with Direct Access).
Windows 7 Ultimate:
Offered only as an add-on to Home Premium or
Includes features from Enterprise.
More personal: Redecorate your desktop with fun new themes,
slide shows, or handy gadgets.
Performance improvements: Designed to sleep and resume
quicker, be less memory hungry, and spot USB devices faster.
Play To: Play your media on other PCs, stereos, or TVs around
Remote Media Streaming: Enjoy music and video on your
home PC—even when you're not at home.
Windows Touch: Pair Windows 7 with a touch screen and you
won't always need a keyboard or mouse.
Jump Lists provide users with quick access to a mini-Start
menu containing lists of pictures, music, word documents
or links that they use most frequently.
Instead of having all files and folders organized under the
familiar Documents folder, Windows 7 features separate
Libraries for specific content types such as contacts,
documents, downloads, music, pictures and videos.
Sharing with HomeGroup
Home Groups let you easily link Windows 7 computers on
your home network to share pictures, music, videos,
documents and devices such as a printer.
The Aero Desktop is really nothing more than a
collection of window and desktop behaviors that make
Windows 7 the prettiest version of the operating system
to date. Features such as Aero Snap let you quickly
organize open windows and transparency makes it easy
to see what’s underneath other windows. With Windows
XP think opaque, with Windows 7, think translucent.
If you give lots of presentations, you’ll welcome a new
tool in Windows 7 that makes it easy for you to display
your Windows 7 portable computer’s desktop on a
projector. Just press the Windows logo key + P and you’ll
see the pop-up box shown in Fig.
Windows 7 desktop will look different now because of the new
taskbar. You can now reorder the opened Window buttons. It has
Jump Lists feature which will allow you to access common
programs very easily. And you can see the full screen preview
before switching to a window.
Performance and User Friendly
Windows 7 will reduce the time to install an app. Also,
now Windows will be less annoying with very less UAC
prompt. For developers also, Win7 will reduce the time
taken for developing Windows app.
Vista has never been known for having good security.
UAC or User Account Control was introduced with Vista
and later kept in Windows 7 but with additional controls
and improved functionality. UAC is simply a security
feature that helps to block viruses and malware. Although
it isn’t bullet proof, it certainly limits what certain types
of malware can do to your PC.
Windows 8 was produced by Microsoft for use on
personal computers, including home and business
desktops, laptops, tablets, and home theater PCs.
Development of this operating system started before
the release of its predecessor in 2009.
Its existence was first announced in January 2011 at
Consumer Electronics Show.
During its development and test phases, Microsoft
released three pre-release versions:
Developer Preview (September 13, 2011),
Consumer Preview (February 29, 2012), and
Release Preview (May 31, 2012).
On August 1, 2012, Windows 8 graduated from the
development stage and was released to manufacturing.
Windows 8 is slated for general availability on October
Graphical user interface :- A new design used by Microsoft.
A new Start screen to replace the Start menu used by
previous versions of Windows.
A new online store that can be used to obtain applications,
described as a "fast and fluid" experience with emphasis on
Additional security features were also added to the
operating system, such as a built-in antivirus program and a
secure boot feature on systems with UEFI firmware.
Windows 8 also introduces an edition of the operating
system designed to run on devices that utilize the ARM
architecture, known as Windows RT.
The Start menu has been removed in favor of a full screen
interface called the Start screen.
The Aero Glass theme, which has been featured in Windows Vista
and Windows 7 has been removed from Windows 8 in favor of a
Microsoft Gadgets which has been featured in Windows Vista and
Windows 7 has been removed from Windows 8.
Windows Media Center will no longer be included by default
in any version of Windows 8.
The Blue Screen of Death no longer shows as much technical
information about the error that caused the computer to stop.
The Parental Controls feature present in earlier versions of
Windows has been removed and replaced by the Family