bios控制着什么（What does BIOS control）.docVIP

bios控制着什么（What does BIOS control） What controls BIOS What controls BIOS Familiar with computer friends all know BIOS this concept, we can often hear those words in the old settlement system when repeated: remove CMOS or enter the BIOS default settings. In the eyes of ordinary people, BIOS seems to be a small chip on the motherboard that boxy and display blue boot menu. What makes it special meaning to the user? Whether it is master or engineer a patent? A computer is to work through what way? Hope that by reading this article, you can get an answer. The internal structure of BIOS Sample Text for our daily use of personal computer, the BIOS is not exactly the same, are provided by Award, Phoenix and AMI of the three companies (Note: Award has been acquired by Phoenix, is actually a company). At present the motherboard condition, most of them are used with Award or BIOS modified Award BIOS kernel based products (using the AMI BIOS products are relatively less, Phoenix BIOS is a notebook computer and a lot of foreign brands by machine). This paper introduces some BIOS knowledge and structure, only around the highest market share of Phoenix-Award. The 2Mbit CMOS address structure with common Award, from FFFF to FFFC region is used for storage capacity of 16Kbit Boot Block (start module) and then 8Kbit PNP extended system configuration data ESCD, 4Kbit Micro and 4Kbit code processor microcode DMI data area. FFF8 to FFF6 is a decompression engine, the instructions here can release after FFF6 area code and large capacity information, such as manufacturers Logo, OEM data and so on. The last part is placed BIOS the main program, the program is usually we downloaded from the Internet with the suffix bin BIOS upgrade file. The main function of BIOS The motherboard BIOS holds the start, parts of the system compatibility and program management and a number of important task. Just press the power button to start the computer, BIOS began to take over all the test motherboard start