Kernel is the UNIX operating system which controls the computer's resources, allotting them to different users and performing different tasks. However, the kernel doesn't deal directly with a user. Instead, it starts up a separate, interactive program, called a shell, for each user when he/she logs on. To learn more about...

It is a Powerful operating system specially designed to ensure an efficient multi-tasking and multi-user functions. Due to its portable nature, it can run on different hardware platforms. It was written and developed in C language and allows users do processing and control under a shell. You can learn more about...