What Is Boot Sequence?

The boot sequence is the order in which a computer searches for nonvolatile data storage devices containing program code to load the operating system (OS). Typically, a Macintosh structure uses ROM, and Windows uses BIOS to start the boot sequence. Once the instructions are found, the CPU takes control and loads the OS into system memory. It's a lot like getting ready for work—you're looking for your keys, wallet, and favorite coffee mug to get dressed and go to work. If you can't find those things, you'll be late for work! The same thing happens when it comes time to boot up your computer: if there are no stored instructions on how to get started, then everything will come to a screeching halt. The boot sequence settings in the CMOS setup affect how the computer boots and which devices it boots first. This information is stored in the CMOS memory, a small chip on the motherboard. If the chip is changed, it will restore the correct values. The settings in the CMOS setup are stored in a particular type of memory called EEPROM. The scenes in the CMOS setup are stored in a specific kind of memory called EEPROM. The CMOS setup is usually held in the motherboard settings - usually in the CMOS setup - a small chip on the motherboard. When you start your computer, many things happen before it gets to the point where you can use it. It's a pretty complicated process! First, there's a test called POST (power-on self-test). It is the first thing your computer does when you turn it on, checking all sorts of things to ensure everything is good. If anything goes wrong during this part, you'll get beep codes or an error message on your screen. Then comes the boot sequence. It is where things get interesting: your computer loads all its programs and files into memory, so they're ready to go!