Ubuntu is part of the Debian family of Linux operating systems, which has the largest pool of developer talent, with every package built by experts. Ubuntu is a secure, intuitive operating system that powers desktops, servers, netbooks and laptops. Ubuntu is an open source software and absolutely free . All those who don't want to spend money on buying paid OS can try UBUNTU for Free. You can download Ubuntu Desktop onto your computer today – all you need is a CD or USB stick. Or if you don't mind waiting, they can send you a Free CD of the latest version at no extra cost, but the delivery may take up to ten weeks. Because it's free software and developed by many of the world’s leading programmers, they guarantee regular updates and upgrades. They're free and easy to install. Whether it's for your Desktop, Server, Cloud, Netbook, UBUNTU matches all our requirements.
Link: https://shipit.ubuntu.com (Worldwide Availability)
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