作者：Egert Kängsepp 6 年以前
578
Boot Process
When a computer is turned on, the power supply first ensures that the power is stable. Subsequently, the CPU is activated and initiates the BIOS, which serves as the fundamental software that manages hardware interactions.
開啟
Boot Process Step 10 - Bootstrap Loader Loads operating system from the bootstrap loader. Step 8 - Memory The POST writes and reads from the systems RAM Step 6 - System Bus The BIOS will have CPU send signals over the system bus to make sure all basic components are working. Step 4 - BIOS and CMOS BIOS and CMOS communicate to make sure everything is there where it is supposed to be. BIOS talks to CMOS Step 2 - The CPU wakes up BIOS doesn't care about the make and model. CPU is going to activate the BIOS. BIOS is a very basic understanding how computer hardware is supposed to work. Power supply then wakes up the CPU. The CPU is brought into the boot process. Step 9 - The Handoff POST hands off to a process called the bootstrap loader Step 7 - Video This is the first time in the boot process anything is displayed on the monitor. POST launches video display It uses very basic video settings Step 5 - Loading Drivers BIOS loads very basic drivers for devices attached to the computer into system memory. Step 3 - POST BIOS starts the Power On Self Test (POST) Step 1 - Power Good The power supply is going to taste the power and make sure everything is OK. You turn the computer on.
