How would you create a variable in PowerShell and assign a value to it? Provide an example.

In PowerShell, creating a variable and assigning a value to it is a fundamental concept that allows you to store and manipulate data. The process is straightforward and follows a specific syntax. To create a variable in PowerShell, you use the dollar sign ($) followed by the variable name. The variable name can include letters, numbers, and underscores, but it must start with a letter or underscore. PowerShell is case-insensitive, meaning "Variable" and "variable" would refer to the same variable. To assign a value to a variable, you use the assignment operator (=), which ind....