Re: What is the difference between BIOS and CMOS?
Hemedi Hatibu
On Friday, April 26, 2013 6:51:17 PM UTC+3, Hemedi Hatibu wrote:
Last week we had a strong discussion about cmos battery!
Please have a look on it and discusse.
The BIOS and CMOS are often times thought to be the same thing, but they are not. They are two different components of a computer, but they do work together to make the computer function properly. The BIOS is a computer chip on the motherboard that resembles the picture to the right. This chip contains a special program that helps the computer processor interact and control the other components in the computer. These other components include disc drives, video cards, sound cards, network cards, floppy drives, USB ports, hard drives, and others. Without the BIOS, the CPU would not know how to interact or interface with the computer components, and the computer would not be able to function.
The CMOS is also a computer chip on the motherboard, but more specifically, it is a RAM chip. This is a type of memory chip which stores information about the computer components, as well as various settings for those components and other variables. However, normal RAM chips lose the information stored in them when power is no longer supplied to them. In order to retain the information in the CMOS chip, a CMOS battery on the motherboard supplies constant power to that CMOS chip. If the battery is removed from the motherboard or runs out of juice (e.g. a dead CMOS battery), the CMOS would lose the information stored in it. Any settings you made in the CMOS setup would be lost, and you would need to make those settings changes again after a new CMOS battery was put on the motherboard. For example, with a dead CMOS battery the time and date will reset back to the manufactured date if it has been off for a long period of time.
The BIOS program on the BIOS chip reads information from the CMOS chip when the computer is starting up, during the boot up process. You may notice on the initial start up screen, called the POST screen, an option is available to enter the BIOS or CMOS setup. When you enter this setup area, you are entering the CMOS setup, not the BIOS setup. The BIOS chip and program cannot be updated directly by a user. The only way to update the BIOS is using a BIOS flash program called a BIOS update, which updates the BIOS to a different version. These updates usually are provided by either the motherboard manufacturer or the computer manufacturer.
The CMOS setup lets you change the time and date and settings for how devices are loaded at start up, like hard drives, CD and DVD drives and floppy drives. The CMOS setup lets you enable and disable various hardware devices, including USB ports, the onboard video card and sound card (if present), parallel and serial ports, and other devices.
In additon.
The CMOS Battery supplies power to the system board to keep the time and the BIOS settings. If you pull the battery and then let the board discharge (up to an hour, depending on the board) the date will default to the earliest time in the BIOS version, The Bios will loose its custom settings and any BIOS password will be deleted.
Bonus CMOS stands for
Complimentary Metal Oxide Semi-conductor
Thanks
Your welcome.
Bakari Geni
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Aang Vuitton
Aang Vuitton
Norton AntiVirus 2013 is the most popular naw try that
Aang Vuitton
Why doesn't <TABLE WIDTH="100%"> use the full browser width?
Graphical browsers leave a narrow margin between the edge of the display area and the content.
Also
note that Navigator always leaves room for a scrollbar on the right,
but draws the scrollbar only when the document is long enough to require
scrolling. If the document does not require scrolling, then this leaves
a right "margin" that cannot be removed.
What is everyone using to write HTML?
Everyone has a different preference for which tool works best for them. Keep in mind that typically the less HTML the tool requires you to know, the worse the output of the HTML. In other words, you can always do it better by hand if you take the time to learn a little HTML.
How can I allow file uploads to my web site?<input type="file" name="upload">
These things are necessary for Web-based uploads:
* An HTTP server that accepts uploads.
* Access to the /cgi-bin/ to put the receiving script. Prewritten CGI file-upload scripts are available.
* A form implemented something like this:
<form method="post" enctype="multipart/form-data" action="fup.cgi">
File to upload: <input type=file name=upfile><br>
Notes about the file: <input type=text name=note><br>
<input type=submit value=Press> to upload the file!
</form>
Not all browsers support form-based file upload, so try to give alternatives where possible.
The
Perl CGI.pm module supports file upload. The most recent versions of
the cgi-lib.pl library also support file upload. Also, if you need to do
file upload in conjunction with form-to-email, the Perl package
MIME::Lite handles email attachments.
than upload the file easly....
Aang Vuitton
The History of HTML
So from whence came the stuff that web pages are made of?...
In the Beginning
HTML —which is short for Hyper Text Markup Language— is the official language of the World Wide Web and was first conceived in 1990. HTML is a product of SGML (Standard Generalized Markup Language) which is a complex, technical specification describing markup languages, especially those used in electronic document exchange, document management, and document publishing. HTML was originally created to allow those who were not specialized in SGML to publish and exchange scientific and other technical documents. HTML especially facilitated this exchange by incorporating the ability to link documents electronically using hyperlink. Thus the name Hypertext Markup Language.
However, it was quickly realized by those outside of the discipline of scientific documentation that HTML was relatively easy to learn, was self contained and lent itself to a number of other applications. With the evolution of the World Wide Web, HTML began to proliferate and quickly spilled over into the mainstream.
Emmaus Kivike
Hemedi Hatibu
You are right Emausy Kivike!