Monday, 12 March 2012

Shotcut Keys For Visual Studio

General
Shortcut
Description
Ctrl-X or
Shift-Delete
Cuts the currently selected item to the clipboard
Ctrl-C or
Ctrl-Insert
Copies the currently selected item to the clipboard
Ctrl-V or
Shift-Insert
Pastes the item in the clipboard at the cursor
Ctrl-Z or
Alt-Backspace
Undo previous editing action
Ctrl-Y or
Ctrl-Shift-Z
Redo the previous undo action
Ctrl-Shift-V or
Ctrl-Shift-Insert
Pastes an item from the clipboard ring tab of the Toolbox at the cursor in the file and automatically selects the pasted item. Cycle through the items on the clipboard by pressing the shortcut keys repeatedly
Esc
Closes a menu or dialog, cancels an operation in progress, or places focus in the current document window
Ctrl-S
Saves the selected files in the current project (usually the file that is being edited)
Ctrl-Shift-S
Saves all documents and projects
Ctrl-P
Displays the Print dialog
F7
Switches from the design view to the code view in the editor
Shift-F7
Switches from the code view to the design view in the editor
F8
Moves the cursor to the next item, for example in the TaskList window or Find Results window
Shift-F8
Moves the cursor to the previous item, for example in the TaskList window or Find Results window
Shift-F12
Finds a reference to the selected item or the item under the cursor
Ctrl-Shift-G
Opens the file whose name is under the cursor or is currently selected
Ctrl-/
Switches focus to the Find/Command box on the Standard toolbar
Ctrl-Shift-F12
Moves to the next task in the TaskList window
Ctrl-Shift-8
Moves backward in the browse history. Available in the object browser or Class View window
Alt-Left Arrow
Go back in the web browser history
Alt-Right Arrow
Go forward in the web browser history

Monday, 5 March 2012

Meaning of Sata and Pata


SATA

Stands for "Serial Advanced Technology Attachment" or "Serial ATA." It is an interface used to connect ATA hard drives to a computer's motherboard. SATA transfer rates start at 150MBps, which is significantly faster than even the fastest 100MBps ATA/100 drives. For this and other reasons, Serial ATA is likely to replace the previous standard, Parallel ATA (PATA), which has been used since the 1980s.
Besides faster transfer rates, the SATA interface has several advantages over the PATA interface. For one, SATA drives each have their own independent bus, so there is no competition for bandwidth like there is with Parallel ATA. They also use smaller, thinner cables, which allows for better airflow inside the computer. SATA cables can be as long as one meter, while PATA cables max out at 40cm. This gives manufacturers more liberty when designing the internal layout of their computers. Finally, Serial ATA uses only 7 conductors, while Parallel ATA uses 40. This means there is less likely to be electromagnetic interference with SATA devices.
In summary, Serial ATA is a better, more efficient interface than PATA standard.

PATA
Parallel ATA (PATA) is an IDE standard for connecting storage devices like hard drives and optical drives to the motherboard. PATA generally refers to the types of cables and connections that follow this standard.
It's important to note that the term Parallel ATA used to simply be called ATA. ATA was retroactively renamed to Parallel ATA when the newer Serial ATA (SATA) standard came into being.

Friday, 2 March 2012

Features Of .Net Framework Brief


Features Of .Net Framework

1. Interoperability:

Because computer systems commonly require interaction between newer and older applications, the .NET Framework provides means to access functionality implemented in programs that execute outside the .NET environment. Access to COM components is provided in the System.Runtime.InteropServices and System.EnterpriseServices namespaces of the framework; access to other functionality is provided using the P/Invoke feature.

2.Common Language Runtime Engine:

The Common Language Runtime (CLR) is the execution engine of the .NET Framework. All .NET programs execute under the supervision of the CLR, guaranteeing certain properties and behaviors in the areas of memory management, security, and exception handling.

3.Language Independence:

The .NET Framework introduces a Common Type System, or CTS. The CTS specification defines all possible datatypes and programming constructs supported by the CLR and how they may or may not interact with each other conforming to the Common Language Infrastructure (CLI) specification. Because of this feature, the .NET Framework supports the exchange of types and object instances between libraries and applications written using any conforming .NET language.

4.Base Class Library:

The Base Class Library (BCL), part of the Framework Class Library (FCL), is a library of functionality available to all languages using the .NET Framework. The BCL provides classes which encapsulate a number of common functions, including file reading and writing, graphic rendering, database interaction, XML document manipulation and so on.

Portability:

While Microsoft has never implemented the full framework on any system except Microsoft Windows, the framework is engineered to be platform agnostic, and cross-platform implementations are available for other operating systems (see Silverlight and the Alternative implementations section below). Microsoft submitted the specifications for the Common Language Infrastructure (which includes the core class libraries, Common Type System, and the Common Intermediate Language), the C# language, and the C++/CLI language to both ECMA and the ISO, making them available as open standards. This makes it possible for third parties to create compatible implementations of the framework and its languages on other platforms.
Simplified Deployment

The .NET Framework includes design features and tools which help manage the installation of computer software to ensure it does not interfere with previously installed software, and it conforms to security requirements.

Security:

The design is meant to address some of the vulnerabilities, such as buffer overflows, which have been exploited by malicious software. Additionally, .NET provides a common security model for all applications.