What is the purpose of BIOS shadow?

Shadowing refers to the technique of copying BIOS code from slow ROM chips into faster RAM chips during boot-up so that any access to BIOS routines will be faster. DOS and other operating systems may access BIOS routines frequently.

What is the purpose of BIOS shadow answer?

The term BIOS shadow is the copying of ROM contents to the RAM, where the information may be accessed more quickly by the CPU. This copy process is also known as Shadow BIOS ROM, Shadow Memory, and Shadow RAM. The examples below are messages you might see when the computer first boots.

What is the purpose of the BIOS?

BIOS, in full Basic Input/Output System, computer program that is typically stored in EPROM and used by the CPU to perform start-up procedures when the computer is turned on. Its two major procedures are determining what peripheral devices (keyboard, mouse, disk drives, printers, video cards, etc.)

What is shadowing in computers?

Webopedia Staff. A technique used to increase a computer’s speed by using high-speed RAM memory in place of slower ROM memory (RAM is about three times as fast as ROM). On PCs, for example, all code to control hardware devices, such as keyboards, is normally executed in a special ROM chip called the BIOS ROM.

How do I fix BIOS shadowing?

Here are some troubleshooting steps that may help. – Start by doing a hard reboot, remove the battery and unplug the AC adapter then press and hold the power button for 20 seconds and try booting it back up. – If it doesn’t work, do try to set BIOS to its default.

What is BIOS setup?

What is BIOS? As your PC’s most important startup program, BIOS, or Basic Input/Output System, is the built-in core processor software responsible for booting up your system. Typically embedded into your computer as a motherboard chip, the BIOS functions as a catalyst for PC functionality action.

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