How the windows registry is organised?
The Registry Editor presents the registry in a folder tree structure that should be familiar to most Windows users. Although the registry doesn't contain actual folders, this display format allows us to easily navigate and manipulate registry.
Each folder is called a key and each key can contain other keys and values. The keys provide the organization structure and the values contain the actual configuration data. Keys appear in the Registry Editor's left pane and values appear in the right pane.
The registry contains five main, or root, keys. Each key contains specific types of information.
• HKEY_CLASSES_ROOT contains information about file types.
• HKEY_CURRENT_USER contains copies of data stored in HKEY_USERS about the user that is currently logged on.
• HKEY_LOCAL_MACHINE contains information about all the hardware and software installed on the computer.
• HKEY_USERS contains information about all the system's user accounts.
• HKEY_CURRENT_CONFIG contains copies of the information from all the other root keys that pertain to the currently running session.
What is the Windows registry?
The registry is essentially a database of a Windows' configurtion settings. It contains information on each user with an account on the local system, on all internal and external hardware, on installed programs, and on property settings. Windows continually references the registry during operation. When you change Windows configuration setting, the registry stores those changes. For example, most changes you make through the Control Panel or local Group Policy Editor (Gpedit.msc) are stored in the registry.
You manually view and modify the registry via the Registry Editor. To launch the Registry Editor click Start Run, type Regedit in the Open text box, and click OK. Windows NT and Windows 2000 provide two different registry editing tools Regedit and Regedt32. Windows XP and Server 2003 provide a version of Regedit which has the functionality of both tools.
INVISIBILITY CLOAK
Posted by Dave Enoch On May - 02 - 2009Would'nt that be amazing to be invisible. The scientists have kept a step forward and made a cloak which is called an invisibility cloak which neither absorbs nor reflects light making the body invisible. This can lead to invisible suits which are going to be available in the market but may be expensive at the start.
FIRST PLASMA TRANSISTOR
Posted by Dave Enoch On May - 02 - 2009Scientists finally fabricate the first plasma transistor.Though this is not good enough to be used in the commercial systems but this has made a path to use them in future.
In the plasma transistor, the electron emitter injects electrons in a controlled manner into the sheath of a partially ionized neon gas (the plasma). The scientists discovered that even a voltage as low as 5 volts can change the properties of the microplasma, including quadrupling the current and increasing the visible light emission.
500GB Optical Disc
Posted by David On May - 02 - 2009The storage capacity of micro-holographic discs that the normal DVDs or the blue-ray discs because the micro-holographic discs store information in a 3D way rather than just putting it onto the surface of the disc.
G.E(General Electrics) has made dramatic changes in the material to increase the reflectivity of the surface.If the reflectivity of the surface increases then the amount of information that can stored automatically increases.
NANO-CLOTH NEVER GETS WET
Posted by David On May - 02 - 2009If you were to soak even your best raincoat underwater for two months it would be wet through at the end of the experience. But a new waterproof material developed by Swiss chemists would be as dry as the day it went in.
Lead researcher Stefan Seeger at the University of Zurich says the fabric, made from polyester fibres coated with millions of tiny silicone filaments, is the most water-repellent clothing-appropriate material ever created.
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