Can a Computer Run Without an Operating System?

💡 The Answer

• Yes, bare-metal code can execute directly on hardware without an OS.
• Simple embedded systems like microwaves run on firmware that handles all tasks in a single loop.
• Early home computers of the 1970s booted directly into a BASIC interpreter stored in ROM.
• Modern computers can be programmed via a bootloader to run lightweight specialized software.
• Without an OS, the program must manage all hardware resources itself, which is complex and error-prone.