01 - PowerShell Variables

 https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_variables?view=powershell-7.4

02 - Automatic Variables

https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_automatic_variables?view=powershell-7.4

03 - Preference Variables

 https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_preference_variables?view=powershell-7.4

04 - PowerShell Array

https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_arrays?view=powershell-7.4

05 - Hast Table

https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_hash_tables?view=powershell-7.4

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Everything you wanted to know about arrays

https://learn.microsoft.com/en-us/powershell/scripting/learn/deep-dives/everything-about-arrays?view=powershell-7.4

about_Arrays

https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_arrays?view=powershell-7.4

9. Arrays

https://learn.microsoft.com/en-us/powershell/scripting/lang-spec/chapter-09?view=powershell-7.4