macOS
7 curated resources, easiest first.
Shows how to set up a new Mac, including bringing a nearby iPhone or iPad over to sign in with your Apple Account. Also touches on personalizing the desktop, using Control Center, finding apps and browsing with Safari.
Apple's central online manual for the Mac, with entry points for setting up a new Mac, switching from Windows and privacy and security tools. It has a table of contents and a search field for finding any topic.
Lists the key combinations for opening Spotlight, opening results and narrowing a search to apps, files, actions or the clipboard. A quick way to find things without the mouse.
Maps familiar Windows ideas to their Mac equivalents, such as Finder, System Settings, the Dock and the Command key. Useful for people moving over from a PC.
Covers the Screenshot panel and the keyboard shortcuts for capturing the whole screen, a window or a selected area, plus screen recordings.
Explains how Mission Control lays out every open window in one view and shows full-screen apps and desktop spaces. Covers the swipe, keyboard and mouse ways to open it.
Describes how to create extra desktops called spaces to keep app windows organised. Covers switching between spaces, moving windows and assigning apps to a space.