The boot process
The sequence of events that occurs between the time that you turn on a computer and the time that it is ready for you to issue commands is referred to as the boot process or “ booting” your computer. Your computer boots up by first loading a small program into memory, and then it uses that small program to load a large operating system. Your computer’s small boot program is built into special ROM (read-only memory) circuitry house d in the computer’s system unit. When you turn on a computer, the ROM circuitry receives power and begins the boot process.
With a Windows computer, the boot process usually proceeds smoothly and, in a short time, you can begin working with your application software. Sometimes, however, the boot process encounter s a problem that must be fix ed before you can begin a computing session. You can fix many of the problems a computer might encounter during the boot process. Make sure, however, that you follow the guideline s provided by your school or employer if you encounter equipment problems with computers in school labs or your workplace.