Your operating system and programs do not need to know the details about the I/O devices connected to your system because of the BIOS.
The BIOS works as an intermediary between the I/O devices and the CPU and is used after the computer has booted up.
Do macs have bios password#
Users can perform different functions by using the BIOS user interface, which is discussed below: There are some functions contained by the BIOS library that operates and controls system peripherals, and they can be initiated through external software. The primary intention of designing the BIOS system is to function with numerous devices that led to making a complimentary system chipset. Therefore, the CPU accesses the EPROM when you turn on the computer and provides control to the BIOS. Actually, it lives on the ROM of the computer system, and mainly it is located on EPROM (erasable programmable read-only memory) chip. It cannot reside in the RAM (Random Access Memory) as it is accessible before the computer system boots up.
Do macs have bios software#
The BIOS is built-in software that manages the hard drives and cannot live on one.
Do macs have bios code#
The main function of BIOS is to set up hardware and start an OS, and it contains generic code that is needed to control display screens, the keyboard, and other functions. Then, the next function of BIOS is to examine all the hardware connections and detects all your devices. Before an OS is loaded, the CPU accesses the basic input/output system (BIOS). It is found on motherboards that are a pre-installed program on Windows-based computers that executes when a computer is powered up. Although there is no need for most people to mess with the BIOS on a computer, it can be better to know about BIOS. BIOS is a program, stands for basic input/output system, which is stored in nonvolatile memory like ROM (Read Only Memory) or flash memory that allows you to set up and access your computer system at the greatest basic level.
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