An array is used to store values in memory. Arrays allow you to store multiple values of the same data type under a single variable name, making it easier to manage and manipulate data in programming. Arrays are commonly used in various programming languages for tasks such as storing collections of data, performing calculations on large sets of values, and iterating through elements to process them. Arrays are not used for deleting values in memory or for output; their primary purpose is to store and organize data.

The main function of the operating system is to control both the hardware and software components of a computer. It acts as an intermediary, managing hardware resources and allowing software applications to run and interact with the computer's hardware. While organizing files and folders is a task performed by the operating system, its primary role is to facilitate communication between software and hardware, ensuring the computer functions properly.

When you use the copy command (Ctrl+C on Windows) to copy a file or text, the data is temporarily saved in an area of the computer's memory called the clipboard. The clipboard is a temporary storage location that holds the data you have copied or cut until you paste it elsewhere (using Ctrl+V on Windows). The clipboard allows you to move or duplicate data within or between applications.

Windows 8 is part of the Windows NT family of operating systems. Windows NT is a family of operating systems produced by Microsoft, which includes Windows NT 3.1, Windows NT 3.5, Windows NT 4.0, Windows 2000, Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, and Windows 10. The Windows NT architecture is known for its stability, security, and advanced features, making it suitable for both personal and enterprise use.

"Urban User Interface" is not a recognized feature of Windows 8. The correct term for the user interface introduced in Windows 8 is the Modern UI or Metro interface, characterized by its tile-based design.

The other features listed—support for ARM processors, support for touch screens, and advanced power management—were indeed features of Windows 8.

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.

Actually, the modification of the work done in a cell in Excel is typically referred to as "editing" the cell, not "range." Editing a cell means changing or modifying the data or formula within that specific cell. A "range" in Excel refers to a group of two or more cells on a worksheet. When you edit a cell, you are making changes to the content of that particular cell.