no
yes
RAM
The CMOS contains user-defined settings for the BIOS. The Bios is a program that contains hardware instructions on how to start the computer.
Basic Input Output System (BIOS)
The chip which holds software that is used to start the computer is the BIOS. The type of chip may be ROM, EEPROM, or NVRAM.
ROM stands for Read only memory. Its not extra on your computer. Operating System cannot load into Ram from hard disk without help of Rom. Rom contains instructions which are used to start a computer
As soon as the first electronic computer was built, it needed repair. that was the start of computer repairs.
Perhaps a "system start disk".
Recovery
RAM is used for storing the start-up instructions on the computer. This serves as the memory of the computer which will retrieve such instructions.
Start Menu
it contains four and it goes to a list of things on the computer or starts something like an engine
Because - the computer needs a specific set of instructions to start -up. The instructions held in ROM initialise the hardware and instruct the computer to load the operating system (and where to find it on the hard-drive).