Once refer to a computer password, most users will think of the Windows login password.  But actually, the computer password can also refer to a BIOS password in addition to the Windows login password. It is one of the more secure methods of password protecting a computer as the computer will not be able to be used unless the password is known.

What is a BIOS password?

Before learning what a BIOS password is, you should understand what BIOS is. BIOS (Basic Input Output System) is often used to describe a software that is programmed into a ROM, (read only memory) that runs every time you boot up a computer. Bios is therefore firmware that runs on a CMOS chip and that there can also be a security chip that imprints the motherboard, hard drive, and bios to make sure all three match.  So a BIOS password refers to a password set on the Bios or security chip. Read more

Part one : Difference between CMOS and BIOS

BIOS (Basic Input Output System) and CMOS (Complementary Metal Oxide Semiconductor) are two terms that are used interchangeably in relation to computer technology. This is because they are very closely related to each other. In actuality, these two are nothing alike. BIOS is a type of software that manages the computer hardware when a computer boots-up. It is more like a primitive operating system that initializes all the resources needed by the true operating system. On the other hand, CMOS is a type of integrated circuit. The reason why the two seem so intertwined is the usage of a CMOS chip to store the information needed by the BIOS. These are the settings you change by accessing a menu during boot-up; commonly by pressing F2…..

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