DavidR,
Thanks. I think your link further clarifies what I understood.

  1. Protection for single computer without central management. Click download
  2. Protection for Windows PCs and Servers networks of 5 - 30,000 endpoint devices. Central management and remote control included. Click Apply.
    All public educational institutions in the US are eligible to use AVAST’s premium, business-grade avast! Endpoint Protection Suite at no cost. For this one need to apply.
    The free antivirus is still free like home users.
    Can any moderator move this to appropriate forum as suggested by some of you?