电脑知识操作技巧大全(电子书)——全面认识BIOS（Computer knowledge operation skills Daquan (ebook) - comprehensive understanding of BIOS）.docVIP

电脑知识操作技巧大全(电子书)——全面认识BIOS（Computer knowledge operation skills Daquan (ebook) - comprehensive understanding of BIOS） Comprehensive understanding of BIOS 1998, issue 07, 07 Edition #1 what is BIOS? Computer users are exposed to BIOS in the process of using computers, and they play a very important role in computer systems. BIOS, complete it should be ROMBIOS, read-only memory basic input / output system of shorthand, it is actually being solidified into a set of computer program, provide the lowest and most direct hardware control for computer. Specifically, BIOS is a converter between hardware and software or interface (although it itself is just a program), responsible for solving the immediate needs of the hardware, and the specific requirements of the execution according to the software of hardware operation. The functions of #1, BIOS Functionally, the BIOS is divided into three parts: 1. self checking and initialization program; 2. hardware interrupt handling; 3. program service request. Here we will introduce each part of the function: (I) self check and initialization This part is responsible for starting the computer, there are three parts, the first part is the detection of hardware for computer just when the power is connected, also called the power on self test (POST), function is to check whether the computer is good, there is no fault such as memory etc.. The second part is the initialization, interrupt vector register set, including the creation, initialization and detection of external equipments, which is a very important part of the BIOS settings, mainly some parameters on hardware settings, when the computer will start to read these parameters, and the actual hardware settings are compared, if not, will affect the system startup. The last part is the bootstrap, which is used to boot DOS or other operating systems. BIOS from a floppy disk or hard disk sector began to read the boot record, if not found, it will show no boot device on the display, if yo