"OS" Operating system

an operating system is a program that controls all the computers features.

its the main part of a computer that lets it know the most of what it needs to know as in, errors the computer may encounter back up and recovery when computer shuts down.

main recourse is the writing and reading data on the computer, help start and stop other programs as well as its allocating main memory.

"OS" (OPERATING SYSTEMS) are the spine of a computer if you think about it, without a spine for a human we wouldn't be able to move our parts of our body, same as a computer with its OS.