Is There Anything Called Kernel Mode In Operating System?
Yes, kernel Mode is a very important feature of the operating system. It is also referred to as the system Mode. This is because it is the core of the operating system and has complete control over all the things that happen in the system. The Kernel Mode is basically a mode of operation of the Central Processing Unit in Linux. A CPU in Kernel Mode, is assumed to be executing only the trusted softwares. It can execute all instructions and reference any location in memory. Kernel is actually a trusted software so all the other programs are said to be untrusted. All the user mode softwares request the use of Kernel. This is done through a system cal which requests Kernel in Unix-like operating system by an active process.