The part of the operating system stored in ROM is typically the firmware, which includes the bootloader and essential system utilities required to start the computer and load the operating system into RAM. This firmware is critical for initializing hardware components and performing basic system checks before handing control over to the operating system. Unlike software stored on a hard drive, firmware in ROM is not meant to be modified frequently, ensuring that the system can reliably boot up.
Usually none. Long ago BIOS(which isn't really part of an OS...) was stored on ROM. These days you've usually got your OS installed on Hard Drive or a SSD drive.
Most computers nowadays do not store any portion of the operating system in ROM. Among those that did and still do, only the kernel and basic system libraries are placed in ROM.
ROM
Rom is a non-volatile memory. A computer system needs it because it stores the data permanently. If there is no ROM the data can be stored only until the system is on. Once the system is off, all the data stored in RAM(volatile memory) will be lost. So, ROM is used to store the data for a desired period of time.
Bios rom
BASIC INPUT OUTPUT SYSTEM. it is stored on the ROM.
ROM
ROM - the read-only memory
post routine is a part of BIOS.it's stored on d ROM memory.it's called as ROM BIOS.it's an automatic test of ur system wen u power on ur PC.It's the first routine/job done by ur PC when u on it.
read-only memory
circut board - the read-only memory (ROM)
ROM