In the Aero interface, all the windows screen elements are translucent. The Windows Taskbar and Start menu are translucent in Windows Vista. The key content of a Window is top level of the more visible translucent “glass” of the windows. It serves as a container for the Window’s non translucent content and less on the window “container”.

Every Screen Windows have an own separates graphics layer and it can be stacked on top of each other I a 3D model. The maximize, minimize and close buttons have a subtle redesigns. It is represented by color style format like maximize and minimize buttons glow blue, whereas the close button glows red. All windows in the aero interface are dynamic.

When you maximize or minimize a Window, it animates to or from a special place on the taskbar. All Window movement is much smoother in Vista than it was in Windows XP. Microsoft has also switched to a new system font in Windows Vista. In past version of Windows used the Tahoma font, the vista aero interface uses the Segoe UI font.

Windows Vista comes with much type of interfaces, designed for system with different levels of graphics processing power. These color schemes interfaces are selected from the Appearance setting dialog box, which is accessed from the Vista Control panel. The Aero interface, features three dimensional windows and sophisticated animation effects. To display the aero interface, your computer video card must support video drivers based on Microsoft’s latest Windows Display Driver Model (WDDM).

Microsoft offers the Windows Vista Basic interface and less powerful video cards. This interface feature non translucent windows that retain the basically aero look and feel without 3D effect. Vista Basic also lacks new window animations and features some changes start menu. In most notebook computers lack adequate video processing, this is the interface that most portable system users will see. Vista users can also used to display the Windows Classic Interface, which mimics the Past windows 2000 interface, with none of Aero 3D effects and animations.

Direct 3D uses Microsoft Clear Type technology to improve the process of onscreen text. The Clear Type is based on the fact that every pixel on a system monitor is composed of red, blue and green sub pixels. Text is displayed by lighting up entire pixels without clear types. Round edges on separate visual characters are comprised of a series of rectangular blocks. The type of fixed pixels can appear jagged and hard to read.

Antialiasing technology used to clear type smoothes the rough edges of onscreen type. All the three type of sub pixels in Clear Type lights through which the curve or line of a character passes. This Clear type technology works because human vision is more sensitive to changes, in light intensity than it is to variations in color.

A small range of color accurate around the edges of a piece of type, then improves the contrast between dark and light. The main disadvantage to clear types comes for sharpness. The clear type text reproduced will view color fringing around the edges, due to the non-lighting of some colored sub pixels.

Windows Vista’s Presentation Foundation graphics subsystem is built on Microsoft’s DirectX API. It was commonly used to develop system games for the Windows Environment. DirectX is a collection of Application Programming Interface to handle a distinct function. It has been extended to both general and high level graphics functionality. Two dimensional graphics are rendered through the Direct Draw API. This is creates bit mapped, graphics as used in past version of Windows. Three dimensional graphics are rendered via direct 3D API.

Direct 3D maintain a powerful 3D graphical features shut in vertex shading, pixel shading, geometry shading, bump mapping, fog and texture mapping. Windows Vista graphics subsystem relies on the direct 3D to render the three dimensional vector graphics of the vista desktop, Direct X components to control all aspects of the pc gaming environment. APIS include Direct Input, Direct Sound, Direct Music, Direct Animation, DirectX transform, Direct Play and Direct setup in Windows Vista.

In past version of Windows rendered desktop elements as a series of bitmapped or raster, graphics. The digital representation of an image using several numbers of colored dots called pixels. Windows Vista displays all desktop elements as vector graphics. It is use mathematical expressions to define the curves, lines of an image. All graphics were rendered by the system main CPU in previous part of Windows.

The graphics can eat up processing time and low operation of your whole computer. The latest Windows Presentation Foundation graphics model, this is performed by a individual Graphics Processing Unit contained on your system video card. The Dedicated GPU renders graphics faster than a shared CPU and frees up the CPU to run system applications. Vista Aero Interface is created by Pixel Shading technology and this function that calculates visual effects on a per-pixels basis.

It can create a high ordinary amount of surface details and enables the effect of the Vista Aero Interface. In collection of pixel is called as object. The individual screen elements can then be layered on top of each other and moved around the desktop independently without the tearing and blending common with bit mapped images.

Vista is one of the multitasking operating system and it is possible to have a word processor, a spread sheet and a web browser all open on the Vista desktop at the simultaneously. Every application occupies its own space in system memory. High memory your system has the more applications that can be open at the same time. A CPU can only doing the process one task at a time and all application programming code is stored in memory. To process multiple applications, the processor must be fed code from every program one at a time.

Every application is allotted only a slice of the CPU processing time. When the CPU processes the second program, the operation from the previous program is store to a unique register with in the CPU. The multiple applications appear to be running simultaneously.

Actually, every application is starting and stopping thousands of times a second, and Windows manages the whole operation, so that none of the processes bump into one another. By saving the unprocessed code in this module, the CPU knows correctly where the process was paused and where to resume when it is that programs turn again.

The Program Code has to reference the universal Windows code to perform that special function. Windows Operating System makes it easy to create reliable applications by letting each applications share individual Universal functions. In Packet of Universal Program Code are stored in files called Dynamic Link Libraries used from all displaying dialog boxes to saving open files. When an application needs to access a DLL, it refers to an open application programming interface to finding how to call that function. It has corresponding API to enable applications to successfully call the function performed by the DLL.

Now, API sends the command to the DLL with any data for the DLL to complete its operation with the proper instructions and information’s at hand, the DLL now loading routine into system memory then it’s executed by the CPU. DLL manages this operation via interface with Windows Operating System.

After complete the operation, the DLL stores the returned information in system memory and instructs Windows to release the DLL routine from memory. Finally, resumes running the application from where it left off before the DLL was called. Currently the process is complete and has occurred in the fraction of second.

Start Menu is launches all your utilities and applications. The right side of the Start menu contains links to common Windows Explorer and latest common using programs are listed on the left side of the menu. Just right click an application icon and choose pin to start menu from the pop-up menu. It always include a shortcut for the choose program.

The entire programs menu within the Start menu contains links to all the application installed on your system. If you have a lot of applications installed on your system, this became somewhat confusing in past version of windows.

In Vista, all application clustering is contained by programs menu contracts in a tree-like structure. It also includes an Instant Search box on the Start Menu. Enter the part of the program name into search field, given result is choosing applications are listed in the program pane. When you click a short cut part on the Start menu, it sends an instruction to launch the program associated with the icon. Start menu works by displaying shortcuts that point to the actual executable files that resides on your computer hard disk.

When you print a Normal Excel Document, the Printed Document depends on the fonts installed on the user’s PC. Microsoft new XML paper specification document is an integral part of Windows Vista and solve this problem. Adobe’s portable document format created in XPs format look like a same printed form. XP’s document is a standard document and this entire image is viewed onscreen and sent to the printer, because all the XPs document and image is created of the original document. In XPs format is mainly supports vector based graphics, high fidelity, instead of traditional bit mapped graphics.

Vista automatically provides a XPs document all time you print form all application. No conversion between the PC and the printer is needed because a single image is being printed; no individual fonts have to be accessed. XPs document are also safer than traditional word or excel files, because a XPs document is simply an image of a document; it does not contain any scripts that can be run in the back ground. It makes a XPs document more like a sheet of electronic paper, rather than a file containing various types of data.

First When Windows runs short on memory, it uses your PC’s hard disk as virtual memory, writing temporary code to the hard drive. The reading and writing operations are very slowly than writing and reading to electronic RAM. So computer performance suffers. Now Windows Vista adds an instant memory to your PC using Ready boost technology. You can use a flash memory device to temporarily increasing the rate of RAM on your PC.

Internet one of these devices into the appropriate slots on your PC, your computer memory space and performance is automatically increased. Vista support Compact Flash and secure Digital memory cards, that handle devices hold between 256MB and 4GB of RAM. Ready Boost helps to sending overflow data’s to your flash memory device and hard disks. Flash Memory device is approximately 10times higher than hard disk based virtual memory.

These devices are added to the RAM on your system mother board, thus providing high memory to open documents and run applications. You can right click on the USB drive in Windows Explorer and select properties from the properties dialog box, select the Ready Boost tab and adjust the slider to select how much space to use. When the flash memory device is released, Windows returns to using just the RAM available on the system mother board.