Strings are a very common thing to see and use in PowerShell. Parameters may take strings and a lot of times the objects that are outputted by various commands have strings as their properties. In ...
Have you ever noticed that if you include a variable within a PowerShell Write-Host statement, that variable is evaluated, even if you include the reference to the variable within the quotation marks?
APIs seem to be everywhere these days. Every popular online service has one. APIs allow developers to interact with online services without actually having to point and click their way through a UI.