macOS Catalina
If you're using one of these computers with OS X Mavericks or later, you can install macOS Catalina. Your Mac also needs at least 4GB of memory and 12.5GB of available storage space, or up to 18.5GB of storage space when upgrading from OS X Yosemite or earlier. To get the latest features and maintain the security, stability, compatibility, and performance of your Mac, it's important to keep your software up to date. Apple recommends that you always use the latest macOS that is compatible with your Mac. The version of macOS that came with your Mac is the earliest version it can use. For example, if your Mac came with macOS Big Sur, it will not accept installation of macOS Catalina or earlier. If a macOS can't be used on your Mac, the App Store or installer will let you know. For example, it might say that it's not compatible with this device or is too old to be opened on this version of macOS.
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Ubuntu
4.0 out of 5 stars
(1 Rating)
Ubuntu is a free, open-source Linux operating system developed by Canonical and the Ubuntu community for desktop computers, servers, cloud infrastructure, and connected devices. Based on Debian, the distribution provides a user-friendly computing environment with regular software updates, security patches, and extensive hardware compatibility. Ubuntu Desktop features the GNOME desktop environment and includes applications for web browsing, office productivity, multimedia, software development, and everyday computing. Its APT package manager and Snap ecosystem allow users to install, update, and manage thousands of software applications. Ubuntu offers Long-Term Support (LTS) releases with five years of standard security maintenance and optional extended coverage through Ubuntu Pro. The operating system also supports virtualization, containers, Kubernetes, artificial intelligence development, and enterprise infrastructure management across on-premises and cloud environments.
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Xubuntu
Xubuntu is a community developed operating system that combines elegance and ease of use. Xubuntu is an elegant and easy to use operating system. Xubuntu comes with Xfce, which is a stable, light and configurable desktop environment. Xubuntu is perfect for those who want the most out of their desktops, laptops and netbooks with a modern look and enough features for efficient, daily usage. It works well on older hardware too. Xubuntu is built around lightweight software with a lot of consideration for usability. Whether you have a high-end computer or even a moderately older machine, Xubuntu is able to provide you with a smooth and usable desktop experience. Benefiting of the Ubuntu hardware support, Xubuntu is able to work wonderfully with a wide variety of devices out of the box. Plug in your device, chances are it will work! Xubuntu has enough applications preinstalled for you to deal with daily tasks without having to install additional software.
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Debian
3.3 out of 5 stars
(3 Ratings)
Debian is a free, open-source Linux operating system developed and maintained by a global community of volunteers. The distribution provides a stable and customizable computing environment for desktop computers, laptops, servers, cloud infrastructure, and embedded systems. Debian includes more than 70,000 software packages covering productivity applications, programming tools, databases, web servers, networking utilities, and system administration. Its Advanced Package Tool (APT) simplifies software installation, dependency management, security updates, and system upgrades. Users can choose from desktop environments such as GNOME, KDE Plasma, Xfce, Cinnamon, MATE, and LXQt or configure lightweight systems without a graphical interface. Debian supports multiple hardware architectures and offers Stable, Testing, and Unstable development branches to accommodate different requirements for reliability and software availability.
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