.R21 File Type - WinRAR Split Archive Part 21
In Windows .R21 File Open With
- RARLAB WinRAR
- Smith Micro StuffIt Deluxe
- Corel WinZip
- Whirling Dervishes Alpha ZIP
- 7-Zip
- Zipeg
In Mac .R21 File Open With
- Smith Micro StuffIt Deluxe Mac 16
- Incredible Bee Archiver
- Zipeg
Operating System (OS)
An operating system is the software that directly manages a system’s hardware and resources, like CPU, memory, and storage.
Mac
macOS is Apple's operating system for Macintosh computers. It offers a user-friendly interface, integration with Apple's ecosystem, and features like iCloud and Siri. It provides a stable and secure platform, empowering users with a range of built-in apps and a seamless experience across devices.
Windows
Windows also known as Microsoft Windows or Win is a graphical operating system developed and published by Microsoft. It provides a way to store files, run the software, connect to the Internet, and lots more.