Revelation Windows Vista Ultimate search Principle

How do you find two seconds in the computer storage of any resources? ?- Local search through the Vista!
Vista system used by the readers will know that its search function is very powerful, and under the previous Windows search function compared to the speed of a qualitative leap. Microsoft is how to speed up the search to achieve this objective? «Today, we will accelerate the search for the principles we all start on Vista system of" Lightning search "feature.
Vista search of past lives, Many Masters
In Windows Vista system released before its own search function is very bad, not only inconvenient to operate, and search and search speed of the types of information are far from meeting customer needs, many Windows users have abandoned system comes with a search function, in turn The use of other manufacturers released by the local search tool.
To make up for this flaw, Microsoft has also been efforts, and launched in 2003 based on the WinFS (Windows File Search) of the Windows Desktop Search tool. Windows Desktop Search is replaced by a WindowsXP based on the start menu search tool, providing greater functionality and convenience of search based on the task bar. This WDS also known as the Vista search prototype, it has no built-in Windows 2003 and WindowsXP, is only a tool in the form of release.
With the release of Vista, Microsoft Windows Desktop Search will be improved built into the Vista system, so as to completely replace the traditional search function. At this point Vista system to search for a formal new form, from behind the scenes to the stage in the Vista search speed, functionality and ease of use, to show significant upgrade.
Lightning speed of the search
Used WindowsXP users will know in a 80 GB hard drive search files, I am afraid, take a few minutes or even longer to find a result. But Vista search ingenious solution to the problem of slow such search, enter the keyword search, click on "Search" button, can immediately show results, real, "found that from the" quick search purposes.
Also in the Vista system use the search function is very simple, not in the "Start" menu in the search to find specialized items, open the "Start" menu can be seen directly after the search keyword input field presence.
The power of indexing
Why, then, Vista's search system in such a quick pace? The main reason is that it uses a google desktop search improve search speed of the same principles of the technology, known as the Indexing Service index services, but Vista search can be customized by the user The index, based on which include documents, which directory, which disk and which format of the document. Vista search is a dynamic real-time updates, so we do not have to worry about document changes will cause an error search problems. For example: users of a file from C to D-disk clip, the index is automatically revised to set a point to D, a process that requires the user does not know.
The use of other local search tools users will know that in the search before the need to spend a few hours of time to establish relations between the index. Vista system is also based on this principle, however, because the index system compatibility and integration is very good, so the indexing process does not give people a serious slow down the speed of the system is running the feeling.
Technical Comments: To be blunt, Lightning is in the index directory search on the basis of, Vista will be set up in peacetime on the disk all the files and directories index relations and maintaining an index table, when you're looking for information directly from the index for Can be. This index can be compared to our books in the catalog, can be directly under their turn to find the contents of the corresponding page .
Create a multi-directional high-speed search engine
Of course, in addition to using the services index main factors to increase the speed of search, Microsoft has introduced in Vista, such as virtual folders, the combination of enquiries, save search results, classification search, speaking of the search, and other concepts, through these means can also increase Search for speed.
1. Virtual folders
Virtual folders (Principle shown in Figure 2) the concept of Vista search is the first time in the introduction, it can help us in different directory with the same characteristics of the document extracted from the establishment of a virtual not real folder to facilitate We find and browse.
A virtual folder will be established in Windows Explorer and Windows Media Player, and so can view the document on your hard drive in the process. From a technical point of view of virtual folder is actually a search index changes and extension, it will index virtual directory, allows users to be in the form of virtual folders to see the existence of these index directory. In actual use of it can help users regularly visit the quick information needs of their own.
2. Portfolio for
Portfolio enquiries (Query Composition) technology is also the first time in Vista become clear. The so-called portfolio is in response to a query Search results on the basis, through the search for further conditions to achieve the limit. In this way, greatly narrowing the scope of the search, efficiency and speed to a large extent by the guarantee. Straightforward to say that this approach similar to the common "in the results View," which helps users step by step to gradually find their own camps the information they need. The ultimate combination for helping us to achieve a coarse to fine, from fuzzy to the precise course of the enquiry.
3. Preservation of search results
Many users of the system you will always find the same type of content, search in Vista also introduced the results of the preservation of function, we can save the search results of the search for a special folder, the folder and ordinary compared to the search results document Folder set up to hide the default format, but its content is dynamic, which is contained in the files and folders with the file system will change automatically added or deleted, in real-time search of the match. Save this search technology is that the essence of the results are not kept by the same, but with the operating system files and change the path of real-time changes, this will quickly show a more accurate search results.
4. Categories Search
In order to speed up the pace of search, Microsoft's search uses a concept called the search request. The so-called Category search means in accordance with current users of the search operation, such as when the user opens the control panel after the search through the search function, it will only control panel icons and options related to the content to find another when the user opens Windows Media Player player to listen to the songs using the search words, the system will only. Mp3,. Wav format, such as audio files to find. To be blunt, what procedures you use the search function, it will be able to open proceedings against any of the documents or procedures in which the option to find. In addition there is a search request such benefits, that is, software manufacturers can easily use a search function, the search module added to the third-party software.
Technical Comments: This classification search, the search function is actually divided into a number of small search function, in different tools for different content to search the one hand, the user can view the operation of preferences to traverse and find the other because Reduce the number of search content, thereby greatly increasing the speed of search.
5. Parade of the search can be
Vista system in the search operation is extremely cordial, and we can almost be in any corner of the search found the shadow. No matter the start menu or the control panel, whether from the Explorer or the IE 7 browser, even from the Windows Photo Gallery and Windows Media Player, can be directly call search function. This search system throughout the layout, allowing the user to find information in the search immediately when, in effect increase the speed, also allows users to more easily get started, do not have frequent calls to return to the desktop search the menu.
Fully learn from the Web search technology
In fact the local search and Internet search query information on a similar principle, the search engine on the main principle at work is divided into a purely technical type of full-text retrieval search and directory search, the former through the process to the various places to collect information, the index database , In the search results on the speed of it is to win, but the result is not real-time information, are in the earlier period of time to the collection. Category search while the latter is through the keywords of the corresponding audit information and artificial set up, this search is the true victory, and its results are very accurate.
From a principle perspective, Vista local search is more like a combination of both, on the one hand through the search process to the hard drive in various sectors and various disk directory to search, index database; On the other hand through the contents of the documents in the establishment of Keywords Traversing a database. Two databases to work together to allow us to quickly and accurately find the content.
Forecast: Vista search for the future
As the corresponding server version of Vista, Windows longhorn will continue Vista search function is an indisputable fact. In addition to Vista search of the future, Editor's Note that the rate of increase not very meaningful, there will be no revolutionary changes. Therefore, we can boldly predict its future: As Microsoft's acquisition of more and more well-known software firms, search supported by the file format will be more and more in the search and content will not be limited to the current content and related documents Information, previously modified the content and information will also be able to find through search function, which can then be careful not to delete the contents of the documents adopted after the search function will be their "back" .