Which component of a computer is typically non-removable and contains the operating system?

The hard drive or SSD is the component of a computer that is typically non-removable and contains the operating system. This storage device holds all the data required for the computer to operate, including system files, applications, and user data. When the operating system is installed, it resides on the hard drive or SSD, allowing the computer to boot and function properly.

In modern systems, SSDs are increasingly common due to their faster read and write speeds compared to traditional hard drives. Regardless of the type, both serve the essential role of providing non-volatile storage where the operating system and related files are maintained even when the computer is powered off.

In contrast, external hard drives are removable storage devices used for backup and additional data storage, and they are not involved in the initial boot process of the operating system. RAM serves a different purpose, acting as temporary storage for data that the CPU is actively using, and it is volatile, meaning all data is lost when the power is turned off. The motherboard is the main circuit board that allows communication between various computer components, but it does not contain the operating system itself.