Archived from groups: alt.comp.hardware.pc-homebuilt (
More info?)
Gene Puhl wrote:
> esara123@hotmail.com (esara) astounded us with:
> news:fd7d27e7.0404071611.d9cae5d@posting.google.com:
>
>
>>I am reading in some artical about PC hardware and came cross these
>>terms.. BIOS, Firmware, and CMOS setting.. since these articals from
>>different authors now I am confused if they mean the same.. I mean if
>>the authors use term BIOS and sometime Firmware or CMOS setting to
>>refere to the same thing?? Are they the same?? if not what are they
>>located each of them??
>>
>>Any help would be very much appreciate it.. thanks a lot
>>
>
>
> AFAIK, CMOS refers to the part of the BIOS that stores the changes you make
> to the BIOS settings. Firmware would be the BIOS version.
>
>
>
BIOS = Basic Input/Output System
controls all the chips on the Mainboard, and the devices
only as far as loading their resources, and assigning them to be
recognized by an OS, by loading them into the volitile memory at boot-up.
CMOS = Complementary Metal Oxide Substrate - a technology of creating
integrated circuit chips, and semi-conductors.
Because the volitile memory in which the BIOS settings cna be stored is
very often a CMOS device, it became confused in some minds of
developers. 'CMOS Setup' actually refers to the setup of the BIOS to
properly identify, configure, and operate, a cpu at an optimum speed,
and to cause other peripheral devices connected to the mainboard, to be
recognized.
Firmware refers to placing a software program into a piece of digital
hardware, usually in the form of an integrated circuit, and then,
installing that 'firmware' device into a 'system' that performs some
computational operation. Most commonly used and known in the alarm
industries, computer industry, robotics, and embedded appliances (cell
phones, telephones,microwave ovens, blenders, household appliances,
automobiles, Gumstix 'Waysmall' computer
http://gumnstix.org and
http://gumstix.com ).