Device Drivers – Its acts as the mediator between the hardware and the processes. Process Management – Determines which process to use the CPU. – Manages how much memory is used to store what and where. Linux Kernel modules can be loaded on demand whenever needed. A Linux kernel comprises of a Base Kernel and kernel modules. By default CentOS 7 ships with a built-in kernel and it is loaded during the boot process. The Linux Kernel resides within the OS and controls all the major functions of the computer hardware. And, even now, RHEL 7 remains a useful and vibrant part of the Linux business world.Linux Kernel is the main component of a Linux Operating System and forms the core interface between the Computer Hardware and its processes. It's no wonder that IDC has found that Red Hat is the leading choice for paid Linux in the worldwide server operating environment market, with over 33% of the total paid enterprise operating systems. Put it all together and it's clear to see that RHEL 7 was a major step forward in corporate Linux distributions. The Red Hat Enterprise Linux web console made it much easier for new system administrators to manage basic system tasks. While still disliked by many, Systemd has become the de facto standard system initialization mechanism for most Linux distributions. In what's still seen as a very mixed blessing in some Linux circles, RHEL 7 was the first major business Linux distribution to move to the Systemd system initialization framework from the prior generation's System V Unix init. RHEL 7 added Docker containers. While Red Hat still supports Docker, since then, it's added the next wave of open standards-based container development tools such as Buildah, Skopeo, and Podman. RHEL 8 has expanded this to include logging and session recording. RHEL System Roles make it easier to perform complex or routine system tasks, like establishing a storage system. 
RHEL 8 built on this introduced Application Streams - the next generation of packaging programmer tools and libraries.
Red Hat Software Collectionsprovide the latest, stable runtimes and development tools for modern application development and deployment.
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