Parsing, in high-level language transformation, is the analysis of code syntax using formal grammar rules. It checks for errors and creates a parse tree representing the code's structure. This tree guides the generation of machine code or program execution, ensuring correct interpretation and execution of the source code.

In Windows, pressing the "Alt" key along with the "Tab" key (Alt+Tab) allows you to switch between open programs or applications. This keyboard shortcut displays a list of open windows, and you can cycle through them by continuing to press the "Tab" key while holding down the "Alt" key, and then release both keys to switch to the selected program.

To open a Search window from the Metro screen (also known as the Start screen) in Windows 8 and later versions, you can press the Windows Key + S keyboard shortcut. This will bring up the Search charm, allowing you to search for apps, files, settings, and other content on your computer.

Operators are symbols that we use when performing operations on one or more operands. The primary types of operators in C are arithmetic, logical, relational, conditional, bitwise, and assignment.

Ctrl+x is used to cut the text and Ctrl+c is used to copy the text.