ROM
Information stored in RAM can be accessed far faster than information stored in ROM. Thus, a computer might store its boot-up instructions in ROM, but store program files in RAM after initial boot-up.
True
the master program of OS is stored in ROM.
Programs stored on ROM chips are called firmware. The motherboard stores the keyboard controller support program on the ROM chip.
By accessing the setup program stored in ROM BIOS.
To access the setup program stored in ROM BIOS on a new computer, you typically need to restart the computer and press a specific key during the boot process. Common keys used for this purpose include F2, DEL, ESC, or F10, depending on the manufacturer. Look for a prompt on the screen during startup that indicates which key to press. Once accessed, you can configure hardware settings, boot order, and other system options.
You might be talking about the BIOS, the Basic Input Output System stored on a ROM chip on the Computer Mainboard. It is the initial boot code run by the pc.
As a rule, the BIOS then accesses the boot sector on the boot device, which might be a floppy disk, a CD-ROM, a DVD, or a hard disk. The boot sector in turn loads a boot manager program of some kind, which starts up the primary operating system for the machine, such as Windows or Linux.
A microwave oven according to the invention have one-chip microprocessors including a ROM, a RAM and an I/O port. In the ROM a permanent program for controlling the RAM, a data input unit and a display unit is stored. Data is coupled from the data input unit and stored in the RAM according to the permanent program.
BIOS is a set of boot programs stored on a non-volatile ROM on the motherboard which is different for every system configuration. That would simply mean that unlike other programs it has direct hardware control.
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.