Explain briefly what are Help and comments in PowerShell.

1.	Explain briefly what are Help and comments in PowerShell.
Answer» POWERSHELL allows the accumulation of help topics for modules, SCRIPTS, and individual commands. To look at all the help topics, you can use the Get-Help COMMAND. While importing a module into a session, PowerShell TRANSFERS the help topics for that module automatically. In case of no help topics for a module, the Get-Help command demonstrates autogenerated help. There are three types of help content that exist in PowerShell: external help, comment-based help, and updatable help. Comment-based help indicates comments contained with a SCRIPT or command for Get-Help to read. External help allows the author to describe help content in an external XML file documented in XAML. Updatable help utilizes external help but allows users to download the new help content with the Update-Help command.

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