ALT Linux is described as 'Set of RPM-based, APT-managed operating systems built on top of the Linux kernel and Sisyphus package repository branches. ALT Linux Rescue is, well, the disaster recovery tool' and is a Linux Distro in the os & utilities category. There are more than 100 alternatives to ALT Linux for a variety of platforms, including Linux, Windows, Self-Hosted, BSD and Mac apps. The best ALT Linux alternative is Linux Mint, which is both free and Open Source. Other great apps like ALT Linux are Ubuntu, Debian, Fedora and Arch Linux.
HP-UX is Hewlett Packard Enterprise's proprietary implementation of the Unix operating system, based on UNIX System V (initially System III) and first released in 1984. Recent versions support the HP 9000 series of computer systems, based on the PA-RISC instruction set...
AIX is a series of proprietary Unix operating systems developed and sold by IBM for several of its computer platforms. Originally released for the IBM RT PC RISC workstation, AIX now supports or has supported a wide variety of hardware platforms, including the IBM RS/6000 series...
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