A+ Training Course Index: Professor Messer’s Course Notes: - - - - - There are many choices for operating systems. In this video, you’ll learn about Microsoft Windows, Linux, Apple macOS, Chrome OS, Apple iPadOS, Apple iOS, and Google Android. - - - - - Subscribe to get the latest videos: Calendar of live events: FOLLOW PROFESSOR MESSER: Professor Messer official website: Twitter: Facebook: Instagram: LinkedIn: