WSUS and SUP – Windows Server Update Services / Software Update Point
WSUS:-
Windows Server Update Services (WSUS) enables information technology administrators to deploy the latest Microsoft product updates.
What it is ? >>> https://www.youtube.com/watch?v=LkeGluvR6C8
Install and Configure WSUS in Windows Server 2012 R2 > https://www.youtube.com/watch?v=Rb4Rl8VrP6U
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SUP:-
Software Update Point
What it is ? >> http://info.adaptivedge.com/blog/understanding-sccm-sup-process