The most current version of Microsoft Windows is Windows 11.
The current version of MacOS is Sequoia, but a new version -Tahoe - will be released on September 15, 2025.
Linux is a family of open source Unix-like operating systems based on the Linux kernel. Linux is more advanced than the other operating systems on this list.
iOS is Apple's phone Operating System. iPadOS is Apple's tablet Operating System. Both are only available with Apple devices
Android is Google's phone operating system. Android can be used with phones and tablets from many different manufacturers.
How Computers Work is a six part series on how all computers work created by Code.org and the Khan Academy. Each video is no more than five minutes long: