There are essentially two types of booting:
1. Cold booting: This is the process of starting a computer from a powered-off state. This is typically done by pressing the power button on the computer. A cold boot starts the computer's hardware and boot loader, which then loads the operating system into memory.
2. Warm booting: This is the process of restarting a computer that is already powered on. This is typically done by pressing the reset button or by using the operating system's restart feature. A warm boot reloads the operating system from memory, bypassing the boot loader and hardware initialization.
It's important to note that these are the two most basic and widely used types of booting, but there could be other variations or advanced booting procedures used in certain scenarios.