RPM Package Manager (RPM) is a package management system used primarily in Linux distributions. It was originally developed for Red Hat Linux but has since been adopted by many other distributions, including Fedora, CentOS, SUSE Linux Enterprise, and openSUSE. RPM packages contain compiled software, libraries, configuration files, and other resources needed to install and run an application. They are designed to simplify the process of software installation, updates, and removal. RPM packages include metadata such as the package name, version, architecture, dependencies, and a description of the software. This metadata allows the package manager to resolve dependencies and ensure that all required components are installed before installing the software. RPM also provides features for verifying the integrity of packages using digital signatures, which helps to prevent the installation of malicious or corrupted software. RPM packages are typically installed using the rpm command-line tool or graphical package managers like GNOME Software or KDE Discover.