The correct answer is Booting.The action of a computer to load an operating system into the computer's main memory or random-access memory (RAM) is called Booting.Booting is a startup sequence that starts the operating system of a computer when it is turned on.A boot sequence is the initial set of operations that the computer performs when it is switched on.Every computer has a boot sequence. Additional InformationThe boot device is the device from which the operating system is loaded.A modern PC BIOS (Basic Input/Output System) supports booting from various devices.These include the local hard disk drive, optical drive, floppy drive, a network interface card, and a USB device. Typically, the BIOS will allow the user to configure a boot order.If the boot order is set to:CD DriveHard Disk DriveNetworkThen the BIOS will try to boot from the CD drive first, and if that fails then it will try to boot from the hard disk drive, and if that fails then it will try to boot from the network, and if that fails then it wont boot at all.