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BIOS = Basic Input Output System
CMOS = Copper-Metal Oxide Semiconductor
BIOS is the interface which is built-in to a computer system's firmware used to configure the computer system hardware in very basic ways. BIOS can be used to enable or disable hardware integrated into the motherboard such as IDE controllers, USB hosts, audio controllers, video, and more.
It is often accessed by pressing F2 during startup, but this can change from manufacturer to manufacturer.
CMOS is a type of circuitry often powered by a battery which allows the information in BIOS to be stored. If the CMOS battery is drained or removed all the system configuration data in BIOS will be reset to factory defaults every time the computer is shut off. These small batteries are also commonly used in calculators, hearing aides, and wristwatches.
Due to the close relationship between the BIOS and the CMOS in the computer system, the two phrases are often incorrectly used as synonyms for each other. Some users will refer to opening the BIOS menu as "going into CMOS" or replacing the CMOS battery as "fixing the BIOS battery." However, none of this is seen as grammatically incorrect in common day-to-day conversation.
Wiki User
∙ 12y ago
Wiki User
∙ 11y agothe bios is your system platform base, in it has all the things that controls your system. like the start-up order called boot order, what to start first cmos it a small chip that holds a small amount of memory when the computer is off, about 600 KB, because it has a small battery about the size of a dime, on the mother broad
Wiki User
∙ 15y agoNo. But it is true that some configuration data (handled by the BIOS) are stored in a little (CMOS) RAM.
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True or false the bios looks to cmos ram settings to find out which secondary storage device should have the OS?
True
How your reset BIOS password from dell d620?
This information is intended for experienced users. It is not intended for basic users, hackers, or computer thieves. Please do not try any of following procedures if you are not familiar with computer hardware. I'll not be responsible for the use or misuse of this information, including personal injury, loss of data or hardware damage. So use it at your own risk. A. By Using the Motherboard Jumper: In most motherboards CMOS battery is soldered, which makes it difficult to remove the battery. In this case we use another method. Almost all motherboards contain a jumper that can clear all CMOS settings along with the BIOS password. The location of this jumper varies depending upon the motherboard brand. You should read your motherboard manual to check its location. If you don't have the manual then look for the jumpers near the CMOS battery. Most of the manufacturer label the jumper as CLR, CLEAR, CLEAR CMOS, etc. When you find the jumper, look carefully. There will be 3 pins and the jumper will be joining the center pin to either left or right pin. What you need to do, is remove the jumper and join the center pin to the opposite pin. e.g. if the jumper joins center pin to left pin, then remove it and join center pin to right pin. Now wait for a few seconds and then again remove the jumper and join the center pin to left pin. Make sure to turn the PC off before opening the cabinet and resetting the jumper. B. By Using Software: I have found that BIOS/CMOS Password Recovery Tool is the most effective.: BIOS/CMOS Password Recovery Tool is a program that works instantly to remove any lost or forgotten BIOS/CMOS password. Simply boot your PC to DOS and execute the program, and get access to forgotten BIOS/CMOS passwords in just seconds BIOS/CMOS Password Recovery Tool Service
Which hardware component contains instructions that are used during the booting of the computer?
That would be firmware such as the ROM BIOS or the EFI. That is Read-Only Memory or a modern variation. BIOS stands for Basic Input/Output System, while the newer technology EFI stands for Extensible Firmware Interface.ROM doesn't require in any batteries. Even EPROM, EEPROM, and NVRAM don't use batteries. What did use batteries was the CMOS memory which may be separate from the ROM, though it could be in the same chip or part of the real-time clock chip. That was not Read-Only Memory, since you would use the CMOS setup to change it. If it can't be changed, no battery would be required. When that battery dies, you only use the hardware settings, not the code that brings up the computer.
What are the three stages of vista startup process?
Startup BIOS first cheacks all the essential hardware coponents, after post, then the BIOS turns to CMOS RAM to find out to which device it should look to find an operating system, and the CIOS finds and launches the small program in the master boot record of the hard drive.
CMOS is an acronym for what?
CMOS stands for Complimentary Metal Oxide Semiconductor. CMOS is a technology for constructing integrated circuits. It is widely used in Microprocessors, Micro Controllers, Static RAM. It is also used in Analog circuits such as image sensors. CMOS was patented in 1967 by Frank Wanlass. CMOS is sometimes referred as COS-MOS i.e complementary-symmetry metal-oxide-semiconductor.
What is the function of the CMOS BIOS?
The CMOS contains user-defined settings for the BIOS. The Bios is a program that contains hardware instructions on how to start the computer.
How do you change the data in the cmos?
Data stored in CMOS can be altered using a CMOS editor program. CMOS commonly stores the computer's BIOS and its content can be changed using the inbuilt BIOS settings utility.
How do you change data stored in the CMOS?
Data stored in CMOS can be altered using a CMOS editor program. CMOS commonly stores the computer's BIOS and its content can be changed using the inbuilt BIOS settings utility.
What is the name of the Bios program that edits values in CMOS RAM?
CMOS Setup
How do you get to BIOS to reset them?
You can press the Delete or F2 key to get into bios and then you can reset the settings or you can reset CMOS. This guide shows you how to reset CMOS - http://www.eteknix.com/how-s/how-reset-cmos-122/
How can the CMOS be cleared on the computer?
There are three ways to clear the CMOS on a computer. You can access the BIOS menu and reset the BIOS settings, you can use the motherboard jumper or clear it by reseating the CMOS battery.
You might flash flash the bios when?
Assuming you mean "flash the CMOS", when the CMOS settings are so messed up, you cannot access the BIOS.
How do you delete BIOS password through command with-ought removing CMOS battery?
how can i break bios password without remove cmos battery
What is the purpose of cmos ram?
The purpose of CMOS RAM is to hold the BIOS program as it is executed by the processor. BIOS is the first program to be loaded when a computer is powered on.
What should you do if you get the POST error CMOS checksum bad?
cmos ram might be corrupt. run bios setup and reset bios to default settings. if it occurs again try, flashing bios.
What is the name of the basic computer mode?
BIOS is the basic CMOS is what BIOS is stored and started
What are three purpose accomplished by the motherboard bios?
To manage simple devices (system BIOS)To start the computer (startup BIOS)To change settings on the motherboard (CMOS setup).
