WINDOWS 7

Windows 7 is the latest public release version of Microsoft Windows, a series of operating systems produced by Microsoft for use on personal computers, including home and business desktops, laptops, netbooks, tablet PCs, and media center PCs. Windows 7 was released to manufacturing on July 22, 2009, and reached general retail availability on October 22, 2009, less than three years after the release of its predecessor, Windows Vista. Windows 7's server counterpart, Windows Server 2008 R2, was released at the same time.
Unlike its predecessor, which introduced a large number of new features, Windows 7 was intended to be a more focused, incremental upgrade to the Windows line, with the goal of being fully compatible with applications and hardware with which Windows Vista is already compatible. Presentations given by Microsoft in 2008 focused on multi-touch support, a redesigned Windows Shell with a new taskbar, referred to as the Superbar, a home networking system called HomeGroup, and performance improvements. Some applications that have been included with prior releases of Microsoft Windows, including Windows Calendar, Windows Mail, Windows Movie Maker, and Windows Photo Gallery, are not included in Windows 7; most are instead offered separately as part of the free Windows Live Essentials suite.
Minimum hardware requirements for Windows 7

Removed features(AS compared to windows xp and windows vista)
A number of capabilities and certain programs that were a part of Windows Vista are no longer present or have been changed, resulting in the removal of certain functionality. Some notable Windows Vista features and components have been replaced or removed in Windows 7, including the classic Start Menu user interface, Windows Ultimate Extras and InkBall. Four applications bundled with Windows Vista — Windows Photo Gallery, Windows Movie Maker, Windows Calendar and Windows Mail — are not included with Windows 7, but are instead available for free in a separate package called Windows Live Essentials.

INSTALLATION
Installation Microsoft is offering several paths to install Windows 7. People can buy a new computer with the operating system already installed, upgrade from Windows XP or Vista, or do a clean install on a computer the user already owns. The clean installation took us about 30 minutes, but that will vary depending on your computer.
The upgrade procedure is different depending on whether you're running Windows XP or Windows Vista. Vista users merely need to back up their data before choosing the Upgrade option from the install disc. Both XP Home and XP Pro users will have to back up their data, then choose Custom from the install disc. Custom will have the same effect as a clean install, although it'll save your old data in a folder called Windows.old. Once you choose Custom, you'll need to select the partition of your hard drive that contains Windows XP, and then follow the instructions to enter your product key and allow the computer to reboot as needed.
FEATURES
DESKTOP Themes
Support for themes has been extended in Windows 7. In addition to setting the colors of the window chrome, desktop background, desktop icons, mouse pointers and sound schemes, themes in Windows 7 include desktop slideshow settings. A new control panel interface, accessible through the "Personalize" context menu item on the desktop, has been introduced which provides the ability to customize and switch between themes, as well as download more themes from Microsoft's web site. Support for "theme packs" is included; theme packs are cabinet files with an extension of .themepack, and consist of a .theme as well as any number of image, sound, icon, and mouse cursor files. Windows 7 recognizes this file format and will switch the user's theme to the theme contained inside when opened.

Desktop Slideshow
Windows Explorer includes a desktop slideshow that changes the desktop background in a designated amount of time with a smooth fading transition. This feature supports pre-downloaded sets of wallpapers and also supports photo RSS feed.
Gadgets
Windows Vista introduced Gadgets and a sidebar which provides the ability to anchor Gadgets to the side of the user's desktop. In Windows 7, the sidebar has been removed, while gadgets can still be placed on the desktop. Windows 7 adds a Windows Media Center gadget to the default collection while removing the Contacts and Notes gadgets.
Managing gadgets is more closely integrated with Windows Explorer, but the gadgets themselves continue to operate in a separate sidebar.exe process.The Desktop context menu includes a new "Gadgets" menu option to access the gadget gallery, and a "View" sub-menu option to show or hide gadgets. Hiding gadgets results in the sidebar.exe process being unloaded, which Microsoft says is a power-saving practice. Unlike Windows Vista, all gadgets run in a single process, which saves memory, and the process is not run at all if the user has no gadgets on the desktop.
Branding and customization
OEMs and enterprises are able to customize the logon screen wallpaper of Windows 7 that is displayed before a user logs on.
Libraries
Windows Explorer in Windows 7 supports Libraries, virtual folders described in a .library-ms file that aggregates content from various locations - including shared folders on networked systems if the shared folder has been indexed by the host system - and present them in a unified view. Searching in a library automatically federates the query to the remote systems, in addition to searching on the local system, so that files on the remote systems are also searched. Unlike search folders, Libraries are backed by a physical location which allows files to be saved in the Libraries. Such files are transparently saved in the backing physical folder. The default save location for a library may be configured by the user, as can the default view layout for each library. Libraries are generally stored in the Libraries special folder, which allows them to be displayed on the navigation pane.
Federated search
Windows Explorer also supports federating search to external data sources, such as custom databases or web services, that are exposed over the web and described via an OpenSearch definition. The federated location description (called a Search Connector) is provided as a .osdx file. Once installed, the data source becomes queryable directly from Windows Explorer. Windows Explorer features, such as previews and thumbnails, work with the results of a federated search as well.
Start menu
The start orb now has a fade-in highlight effect when the user moves the mouse over it.
Windows 7's Start menu retains the two-column layout of its predecessors, with several functional changes:
The "Documents", "Pictures" and "Music" buttons now link to the Libraries of the same name.
A "Devices and Printers" option has been added that displays a new device manager.
The "shut down" icon in Windows Vista has been replaced with a text link indicating what action will be taken when the icon is clicked. The default action to take is now configurable through the
Taskbar and Start Menu Properties window.
Taskbar Jump Lists are presented in the Start Menu via a guillemet; when the user moves his or her mouse over the guillemet, or presses the right-arrow key, the right-hand side of the Start menu is widened and replaced with the application's Jump List.
Taskbar
The Windows Taskbar has seen its most significant revision since its introduction in Windows 95. The taskbar is 10 pixels taller than in Windows Vista to accommodate touch screen input and a new larger default icon size, though a smaller taskbar size is available. Running applications are denoted by a border frame around the icon, while applications can be pinned to the taskbar, so that shortcuts to them appear when they are not running. Within this border, a color effect (dependent on the predominant RGB value of the icon) that follows the mouse also indicates the opened status of the application. The glass taskbar is also more transparent. Taskbar buttons show icons by default, not application titles, unless they are set to not combine. Only icons are shown when the application is not running.
Window management mouse gestures
Aero Snap; Window maximizing and tiling
Windows can be dragged to the top of the screen to maximize them and dragged away to restore them. Dragging a window to the left or right of the screen makes it take up half the screen allowing the user to tile two windows next to each other. Also resizing the window to the bottom of the screen or top will extend the window full but retain the width of the window. These features can be disabled via the Ease of Access Center if users do not wish the windows to automatically resize.

Aero Shake

Aero Shake allows users to clear up any clutter on their screen by shaking (dragging back and forth) a window of their choice with the mouse. All other windows will minimize, while the window the user shook stays active on the screen. When the window is shaken again, they are all restored, similar to desktop preview.
Multi-touch
Hilton Locke, who worked on the Tablet PC team at Microsoft, reported on December 11, 2007 that Windows 7 will have new touch features. An overview of the multi-touch capabilities, including a virtual piano program, a mapping and directions program and a touch-aware version of Paint, was demonstrated at the All Things Digital Conference on May 27, 2008. A video demonstrating the multi-touch capabilities was later made available on the web on the same day. Desktop Window Manager
First introduced in Windows Vista, the Desktop Window Manager (DWM) in Windows 7 has been updated to use version 10.1 of Direct3D API, and its performance has been improved significantly.The Desktop Window Manager still requires at least a Direct3D 9-capable video card (supported with new D3D10_FEATURE_LEVEL_9_n device type introduced with the Direct3D 11 runtime).With a video driver conforming to Windows Display Driver Model v1.1, DXGI kernel in Windows 7 provides 2D hardware acceleration to APIs such as GDI, Direct2D and DirectWrite (though GDI+ was not updated to use this functionality). This allows DWM to use significantly lower amounts of system memory, which do not grow regardless of how many windows are opened, like it was in Windows Vista. Systems equipped with a WDDM 1.0 video card will operate in the same fashion as in Windows Vista, using software-only rendering.The Desktop Window Manager in Windows 7 also adds support for systems using multiple heterogeneous graphics cards from different vendors
Font management
The user interface for font management has been overhauled. As with Windows Vista, the collection of installed fonts is shown in a Windows Explorer window, but fonts from the same font family appear as "stacks" instead of as individual icons. A user can then double-click on the font stack and see the individual font. A preview of the font is displayed as part of the icon as well. New options for hiding installed fonts are included; a hidden font remains installed, but is not enumerated when an application asks for a list of available fonts. Windows Vista had received considerable criticism for including the same "Add Font" dialog that had existed as far back as Windows NT 3.1; this dialog has been removed.
The Font dialog box has also been updated to show previews of the font selection in the selection lists. The fontview.exe default font viewing application has replaced the "Properties" button with a "Install" button.
Security / networking
Microsoft had already done a lot of work since the initial release of Vista on not bugging us incessantly with pop-up security nags, but Windows 7 strikes an even better balance. What is disconcerting is how often security warnings include an "unknown" as the publisher -- it's not really teaching anybody to be judicious about what pops up in the warning if the warning itself doesn't even know what's going on. In the end we'll find out just how secure Windows 7 is once it's in the wild and hackers start hammering on it, but with the abundance and ease of Windows updates these days, most anybody with an ounce of common sense and a speedy internet connection should be able to steer clear of danger. Meaning: we're all doomed.

HOW TO MAKE INTEL PROCESSOR

STEP BY STEP PROCESS FOR MAKING A PROCESSOR

Sand:- Made up of 25 percent silicon, is, after oxygen, the second most abundant chemical element that's in the earth's crust. Sand, especially quartz, has high percentages of silicon in the form of silicon dioxide (SiO2) and is the base ingredient for semiconductor manufacturing.

After procuring raw sand and separating the silicon, the excess material is disposed of and the silicon is purified in multiple steps to finally reach semiconductor manufacturing quality which is called electronic grade silicon. The resulting purity is so great that electronic grade silicon may only have one alien atom for every one billion silicon atoms. After the purification process, the silicon enters the melting phase. In this picture you can see how one big crystal is grown from the purified silicon melt. The resulting mono-crystal is called an ingot.

A mono-crystal ingot is produced from electronic grade silicon. One ingot weighs approximately 100 kilograms (or 220 pounds) and has a silicon purity of 99.9999 percent.

The ingot is then moved onto the slicing phase where individual silicon discs, called wafers, are sliced thin. Some ingots can stand higher than five feet. Several different diameters of ingots exist depending on the required wafer size. Today, CPUs are commonly made on 300 mm wafers.

Once cut, the wafers are polished until they have flawless, mirror-smooth surfaces. Intel doesn't produce its own ingots and wafers, and instead purchases manufacturing-ready wafers from third-party companies. Intel’s advanced 45 nm High-K/Metal Gate process uses wafers with a diameter of 300 mm (or 12-inches). When Intel first began making chips, it printed circuits on 50 mm (2-inches) wafers. These days, Intel uses 300 mm wafers, resulting in decreased costs per chip.

The blue liquid, depicted above, is a photo resist finish similar to those used in film for photography. The wafer spins during this step to allow an evenly-distributed coating that's smooth and also very thin.

At this stage, the photo-resistant finish is exposed to ultra violet (UV) light. The chemical reaction triggered by the UV light is similar to what happens to film material in a camera the moment you press the shutter button.Areas of the resist on the wafer that have been exposed to UV light will become soluble. The exposure is done using masks that act like stencils. When used with UV light, masks create the various circuit patterns. The building of a CPU essentially repeats this process over and over until multiple layers are stacked on top of each other.A lens (middle) reduces the mask's image to a small focal point. The resulting "print" on the wafer is typically four times smaller, linearly, than the mask's pattern.

In the picture we have a representation of what a single transistor would appear like if we could see it with the naked eye. A transistor acts as a switch, controlling the flow of electrical current in a computer chip. Intel researchers have developed transistors so small that they claim roughly 30 million of them could fit on the head of a pin.

After being exposed to UV light, the exposed blue photo resist areas are completely dissolved by a solvent. This reveals a pattern of photo resist made by the mask. The beginnings of transistors, interconnects, and other electrical contacts begin to grow from this point.

The photo resist layer protects wafer material that should not be etched away. Areas that were exposed will be etched away with chemicals.

After the etching, the photo resist is removed and the desired shape becomes visible.

More photo resist (blue) is applied and then re-exposed to UV light. Exposed photo resist is then washed off again before the next step, which is called ion doping. This is the step where ion particles are exposed to the wafer, allowing the silicon to change its chemical properties in a way that allows the CPU to control the flow of electricity.

Through a process called ion implantation (one form of a process called doping) the exposed areas of the silicon wafer are bombarded with ions. Ions are implanted in the silicon wafer to alter the way silicon in these areas conduct electricity. Ions are propelled onto the surface of the wafer at very high velocities. An electrical field accelerates the ions to a speed of over 300,000 km/hour (roughly 185,000 mph)

After the ion implantation, the photo resist will be removed and the material that should have been doped (green) now has alien atoms implanted.

This transistor is close to being finished. Three holes have been etched into the insulation layer (magenta color) above the transistor. These three holes will be filled with copper, which will make up the connections to other transistors.

The wafers are put into a copper sulphate solution at this stage. Copper ions are deposited onto the transistor through a process called electroplating. The copper ions travel from the positive terminal (anode) to the negative terminal (cathode) which is represented by the wafer.

The copper ions settle as a thin layer on the wafer surface.

The excess material is polished off leaving a very thin layer of copper.

Multiple metal layers are created to interconnects (think wires) in between the various transistors. How these connections have to be “wired” is determined by the architecture and design teams that develop the functionality of the respective processor (for example, Intel’s Core i7 processor). While computer chips look extremely flat, they may actually have over 20 layers to form complex circuitry. If you look at a magnified view of a chip, you will see an intricate network of circuit lines and transistors that look like a futuristic, multi-layered highway system.

This fraction of a ready wafer is being put through a first functionality test. In this stage test patterns are fed into every single chip and the response from the chip monitored and compared to "the right answer."

After tests determine that the wafer has a good yield of functioning processor units, the wafer is cut into pieces (called dies).

The dies that responded with the right answer to the test pattern will be put forward for the next step (packaging). Bad dies are discarded. Several years ago, Intel made key chains out of bad CPU dies.

This is an individual die, which has been cut out in the previous step (slicing). The die shown here is a die of an Intel Core i7 processor.

The substrate, the die, and the heatspreader are put together to form a completed processor. The green substrate builds the electrical and mechanical interface for the processor to interact with the rest of the PC system. The silver heatspreader is a thermal interface where a cooling solution will be applied. This will keep the processor cool during operation.

A microprocessor is the most complex manufactured product on earth. In fact, it takes hundreds of steps and only the most important ones have been visualized in this picture story.

During this final test the processors will be tested for their key characteristics (among the tested characteristics are power dissipation and maximum frequency).

Based on the test result of class testing processors with the same capabilities are put into the same transporting trays. This process is called "binning". Binning determines the maximum operating frequency of a processor, and batches are divided and sold according to stable specifications.

The manufactured and tested processors (again Intel Core i7 processor is shown here) either go to system manufacturers in trays or into retail stores in a box. Many thanks to Intel for supplying the text and photos in this picture story. Check out Intel's site for full size images of this entire process

AMD X2 VS INTEL PENTIUM D

AMD X2 VS INTEL PENTIUM D
The inception of dual-core processors a little while back the race has been on to see who can get the better chip with this dual-core processor technology.During the final days of the single-core battles, there was a stalemate between AMD and Intel. Intel's clocked higher but were unable to match the speeds that the AMD managed at lower clock speeds.The oldest difference between them has been their suitability for specific tasks. AMD have had the gaming sector in the bag, especially in terms of the value for money possible with their lower clocked chips, which could be overclocked to the same speeds as their top models. Intel has the crown for general performance. When it comes to office related tasks, Intel processors are able to outperform AMD chips in these areas.As the ability to clock the chips any higher became more and more difficult technically, the next step was to just add another core, theoretically allowing twice as much number crunching in a dual-core processor. This is not exactly how it works however.Modern operating systems and programs have not been designed with multiple-core or dual-core processors in mind. They were designed to make use of one core on one processor. The major expense that went with multiple processor computers was the circuitry needed to split tasks up amongst the processors and sharing cache.

Dual-core processors simply act like two places for tasks to go. Instead of single tasks getting split up and performed in two different places, as is the case with traditional single core processors, single threads get split up amongst the cores. This essentially means that each program gets assigned to a core.Because of this there is absolutely no increase in speed for gaming from dual-core processor chips. Only once the games themselves have been programmed to take advantage of dual-core processors will there be a difference. This is due to the intensive nature of games and the number crunching needed for intense graphics, which for now cannot be split over multiple cores in dual-core processors.So back to the battlefield.AMD were the first to introduce their dual-core processor solution to a desktop computer. This gave them a slight lead over Intel. Despite this, AMD gave people a bit of a surprise with their new offering.Always having been renowned for giving far more than expected for the price, these new dual-core processors were very expensive.

Part of what managed to give AMD a hold in a market previously dominated by Intel was their good pricing. This shock did not go down well with consumers.To add insult to injury, Intel's dual-core processor offerings came in at remarkably good value. Both of their initial dual-core processors cost less than AMD's lowest priced model. That's right, AMD's cheapest dual-core processor cost more than Intel's most expensive. This definitely put the ball in Intel's court and was downright disappointing for AMD fans.AMD did manage to introduce a cheaper model to compete better with the Intel offerings. Despite this, Intel was still the forerunner in this area.Performance remains an area that is sketchy.With the relatively new technology involved it is hard to draw a clear conclusion on who is faster.

With operating systems only recently oriented towards fully utilizing dual-core processor technology, it is still new territory. Both offer increased performance, but as to who will rule the roost, we'll have to see.For the meantime it would probably be advisable to just watch.

How to create a System Restore point in Windows Vista

To create a System Restore point in Windows Vista

Creating a System Restore point manually
1.Right-click on the Computer icon in the Desktop, and choose Properties

2. In the left pane, click System Protection
3.Alternately, to access the System Protection tab directly, click Start and type SystemPropertiesProtection.exe.
If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

4.Click the System Protection tab, and then click Create.


5.In the System Protection dialog box, type a description, and then click Create.

Creating a System Restore point using a shortcut

Alternately, you may use the method below:
Copy the contents below to a Notepad document, and save it to a file name with .vbs extension (Example: createrp.vbs) and close Notepad.

set SRP = getobject("winmgmts:\\.\root\default:Systemrestore")CSRP = SRP.createrestorepoint ("Created a Restore Point now", 0, 100)If CSRP <> 0 then Msgbox "Error " & CSRP & ": Unable to create System Restore point"End if

Right-click on the Desktop and select New - Shortcut

Create a shortcut with the following target:
wscript.exe c:\scripts\createrp.vbs

Note: The above assumes that the createrp.vbs script is present in the c:\scripts folder. If that's not the case, change the Path accordingly.

Name the shortcut file name as Create Restore Point
Running the script
To create a System Restore point, run the script with elevated mode. To do so, right-click on the newly created shortcut (Create Restore Point.lnk) and choose Run as administrator. When you are prompted for an administrator password or confirmation, type the password or provide confirmation. A System Restore point will automatically be created.