What is Layers Of Linux?
Hardware - : The physical machine—the bottom or base of the system, made up of memory (RAM) and the processor or central processing unit (CPU), as well as input/output (I/O) devices such as storage,networking and graphics. The CPU performs computations and reads from, and writes to, memory.
Kernel-:The Linux kernel is the main component of a Linux operating system (OS) and is the core interface between a computer’s hardware and its processes. It communicates between the 2, managing resources as efficiently as possible.
Shell-:A command line is a text-based interface which can be used to input instructions to a computer system. The Linux command line is provided by a program called the shell. Various options for the shell program have been developed over the years, and different users can be configured to use different shells. Most users, however, stick with the current default.The default shell for users in Red Hat Enterprise Linux is the GNU Bourne-Again Shell (bash). Bash is an improved version of one of the most successful shells used on UNIX-like systems, the Bourne Shell (sh).
Applications-:It provides the functionalities of an operating system to the user.
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