The abbreviation of plural Biography is Bios, reads /'baious/. BIOS setting program is saved in BIOS chip. Only when starting up it can be set. CMOS is mainly used for saving the parameter and data of BIOS. BIOS mainly manage and set the basic input and output system. It slao can exclude system faults or diagnosis system poblems. Somebody thinks that since BIOS is a program, it is software like Word or Excel. There are still some opposite opinions. BIOS is still very different from normal softwares. And it is similar to hardware. Actually BIOS is the bridge of software programs and hardware devices. It is incharge of the requirements of hardwares.
The BIOS chip on main board is the only labeled chip. Generally it is a 32-pin dual in-line type integrated circuit with BIOS mark. The BIOS before 586 are mostly rewritable EPROM chip. The label on it protects BIOS content (UV will cause the loss of EPROM content) and cannot be easily torn down. The BIOS after 586 mostly use EEPROM (Electrically Erasable Programmable Read - Only Memory). Through the jumper switch and the driver, it is possible to rewrite EEPROM to upgrade BIOS. Users will always come into the contact with BIOS while using computer. The functions of BIOS decide the performance of main board.
BIOS chip is a rectangular or square chip on the main board. BIOS mainly saves the following:
Self-checking program (power up self-checking): through reading the content identification hardware configuration of CMOS RAM, it self-checks and initializes.
CMOS setting: during guiding, it is started with special hot key. Settings will be saved to CMOS RAM.
System Bootstrap Loading Program: after the success of self-checking, the guiding program on the corresponding 0 to 1 sector of disc will be saved to RAM to install DOS system.
Major I/O devices drivers and interruption service (drviers based on external devices): as BIOS works directly with system hardware resource, so it is always aimed at a certain kind of hardware system, and the hardware systems are so different from each other, so there are various kinds of BIOS. With the development of hardware techniques, the same kind of BIOS has developed into different types. The new type has more power functions than old ones.
The abbreviation of plural Biography is Bios, reads /'baious/. BIOS setting program is saved in BIOS chip. Only when starting up it can be set. CMOS is mainly used for saving the parameter and data of BIOS. BIOS mainly manage and set the basic input and output system. It slao can exclude system faults or diagnosis system poblems. Somebody thinks that since BIOS is a program, it is software like Word or Excel. There are still some opposite opinions. BIOS is still very different from normal softwares. And it is similar to hardware. Actually BIOS is the bridge of software programs and hardware devices. It is incharge of the requirements of hardwares.
The BIOS chip on main board is the only labeled chip. Generally it is a 32-pin dual in-line type integrated circuit with BIOS mark. The BIOS before 586 are mostly rewritable EPROM chip. The label on it protects BIOS content (UV will cause the loss of EPROM content) and cannot be easily torn down. The BIOS after 586 mostly use EEPROM (Electrically Erasable Programmable Read - Only Memory). Through the jumper switch and the driver, it is possible to rewrite EEPROM to upgrade BIOS. Users will always come into the contact with BIOS while using computer. The functions of BIOS decide the performance of main board.
BIOS chip is a rectangular or square chip on the main board. BIOS mainly saves the following:
Self-checking program (power up self-checking): through reading the content identification hardware configuration of CMOS RAM, it self-checks and initializes.
CMOS setting: during guiding, it is started with special hot key. Settings will be saved to CMOS RAM.
System Bootstrap Loading Program: after the success of self-checking, the guiding program on the corresponding 0 to 1 sector of disc will be saved to RAM to install DOS system.
Major I/O devices drivers and interruption service (drviers based on external devices): as BIOS works directly with system hardware resource, so it is always aimed at a certain kind of hardware system, and the hardware systems are so different from each other, so there are various kinds of BIOS. With the development of hardware techniques, the same kind of BIOS has developed into different types. The new type has more power functions than old ones.
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