CMOS vs BIOS
Summary: Difference Between CMOS and BIOS is that some RAM chips, flash memory chips, and other types of memory chips use complementary metal-oxide semiconductor (CMOS pronounced SEE-moss) technology because it provides high speeds and consumes little power. While BIOS stands for Basic Input/Output System. BIOS is a program that every personal computer microprocessor uses in order to start the computer.
CMOS
Some RAM chips, flash memory chips, and other types of memory chips use complementary metal-oxide semiconductor (CMOS pronounced SEE-moss) technology because it provides high speeds and consumes little power. CMOS technology uses battery power to retain information even when the power to the computer is off. Battery-backed CMOS memory chips, for example, can keep the calendar, date, and time current even when the computer is off. The flash memory chips that store a computer’s startup information often use CMOS technology.
BIOS
BIOS stands for Basic Input/Output System. BIOS is a program that every personal computer microprocessor uses in order to start the computer. After you turn it on the BIOS helps computer to start. All the data flow between connected devices such as Keyboard, Mouse, Monitor, Printer and the operating system can only be managed with BIOS. BIOS is a built-in program installed already in your computer when you first purchase it. But it’s not mandatory that the installed BIOS is the one installed by manufacturer’s. User can also install BIOS in their personal computers and vendor’s too.
BIOS is a program made easily accessible to the microprocessor on EPROM (Erasable Programmable Read-Only Memory). Whenever the computer get’s turned on microprocessor gives control to the BIOS which is located at the same place where EPROM is located. The first thing BIOS assures after starting up your computer is that every attached device is working properly and then BIOS loads the operating system into RAM from your hard drive.
Also Read:
Difference Between CMOS and CCD
Difference Between CMOS and MOS
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