BOOTING

• To boot (as a verb; also "to boot up") a computer is to load an operating system into the computer's main memory or random access memory (RAM)
• In computing, booting (also known as booting up) is a bootstrapping process that starts operating systems when the user turns on a computer system. A boot sequence is the initial set of operations that the computer performs when power is switched on. The boot loader typically loads the main operating system for the computer.
• Beginning with the IBM 701 in the 1950s to the present, booting has been used to load operating systems into the main memory of mainframe computers, mini computers, and personal computers.