An operating system is one of the most essential programs that allows a computer to run and execute programs. Without an operating system, a computer can’t be used since the computer’s hardware won’t be able to communicate with the software.

How can I start my computer without operating system?

It is possible to write code without any OS, put it on hard drive, optical drive or USB drive, at specific address and run it. It’s also possible to run such code from the network (network boot option).

Is it possible to use a computer without an operating system?

The operating system is a program that acts like a manager to all the other programs on the computer. It also decides how much memory to allot to each program that is running. Without an operating system, the computer would only be able to run one program at a time.