Windows OS: Windows 10 or Windows 11
macOS: Office for Mac is supported on the three most recent versions of macOS. As new major versions of macOS are made generally available, Microsoft will drop support for the oldest version and support the newest and previous two versions of macOS. Product functionality and feature availability may vary on older systems. For the best experience, use the latest version of any operating system specified above.
Check the webpage below for more details about system requirement
https://www.microsoft.com/en-us/microsoft-365/microsoft-365-and-office-resources#areaheading-oc13ea
Office Home and student 2021 is made to help you achieve more with time-saving features, a new modern look, built-in collaboration tools, Plus, you can save your documents in the cloud on OneDrive and access them from anywhere.
Includes:
Office 2021 comes fully loaded with your favorite applications—Word, Excel, PowerPoint, and OneNote. It’s everything you need to be an overachiever.
The applications in Office 2021 are packed with built-in collaboration tools to help you share and coauthor documents in Word, PowerPoint, and OneNote for faster productivity than ever before.
OneDrive cloud storage integration means your files can travel with you, so you can achieve more at work or at home, locally or remotely, from virtually anywhere around the world.
Create and share professional-looking documents with state-of-the-art editing, reviewing, and sharing tools. The new Design tab provides quick access to features and the new Insights pane shows relevant contextual information from the web directly inside Word.
Analyze and visualize your data in new and intuitive ways with a fresh user interface plus your favorite keyboard shortcuts. Leverage features like Analysis Toolpak, Slicers, Formula Builder, and Autocomplete to save time, so you can focus on insights.
Create, collaborate, and effectively present your ideas with new slide transitions and an improved Animations task pane. Threaded comments alongside your slides help you incorporate feedback into your presentations.
It’s your very own digital notebook, so you can keep notes, ideas, web pages, photos, even audio and video all in one place. Whether you’re at home, in the office, or on the move, you can take it all with you wherever you go while sharing and collaborating with others.