The BIOS - Defined

[Yona Maro]

BIOS (basic input/output system) is the program a personal computer's CPU uses to get the computer system started when you turn it on. It also manages data flow between the computer's operating system and attached devices such as the hard disk, video adapter, keyboard, mouse, and printer.

BIOS is an integral part of your computer and comes with it when you bring it home. In contrast, the operating system can either be preinstalled by the manufacturer or vendor or installed by a user. BIOS is a program that is made accessible to the CPU on an erasable programmable read-only memory (EPROM) chip. When you turn on your computer, the CPU passes control to the BIOS program, which is always located at the same place on EPROM. This is the POST process or "Power On Self Test."

When BIOS starts the POST process starting your computer, it first determines whether all of the attachments are in place and operational and then it loads the operating system into your computer's random access memory RAM from your hard disk or a floppy disk.

With BIOS, your operating system and its applications are freed from having to understand exact details, such as hardware addresses, about the attached input/output devices. When device details change, only the BIOS program needs to be changed. Sometimes this change can be made during your system setup. In any case, neither your operating system or any applications you use need to be changed.

Although BIOS is theoretically always the intermediary between the CPU and I/O device control information and data flow, in some cases, BIOS can arrange for data to flow directly to memory from devices, such as video cards, that require faster data flow to be effective.

Originally, the EPROM chips used in a PC were printed circuits that were pressed into the slot on the motherboard or soldered on. Then a few years back, the Bios manufacturers begin to use erasable programmable EPROM chips for the Bios. The reasoning was to allow for easier updates to the central core BIOS. Why is this important. In the past, you would either replace the motherboard or at least the BIOS chip if you needed to upgrade the basic system programming. Now, it can be done with a simple software upgrade that erases the existing BIOS code and then writes a new code to the BIOS EPROM chip. This process of erasing and writing new code is called "FLASHING." The Flash Bios often allows a motherboard manufacturer to add features to a BIOS for hardware and settings they did not consider when the motherboard was manufactured, such as larger hard drives, faster CPUs, even specialty devices like ZIP drives. A Flash Bios can even be offered to correct errors in the code of the original BIOS, called BUGS.

We have an excellent explanation of all the basics of the BIOS and CMOS:

[NHH]

We hear all the louboutin shoestime thatchristian louboutin shoes we need tochristian louboutin "increase ourlouboutin shoes discount conversions" christian louboutinor "get our numberschristian louboutin shoes up". But what christian louboutin new yorkexactly doeslouboutin shoes that mean andlouboutin shoe sale what elseSale christian louboutin do we Buy christian louboutin Storeneed Sandals Onlineto know?"christian louboutin shoesConversion" is christian louboutin sandalsall about Buy louboutin shoesturning leads into paying clients and, when done well, more leads turn into more clients while doing it better, faster and with the least possible expense.

[MJJ]

"Conversion" is ed hardy capsalso used ed hardy shirtsto describe ed hardy womenthe result of Tiffany jewellersdesiring someone Tiffany jewelryto take a Tiffany Earringsstep -- whicheverTiffany rings step you tiffany silverwant them Tiffany Braceletto take -- ray ban sunglasseswhether it is signingaviator sunglasses up for a ray ban wayfarerf'ree report,ray ban aviator register for ghda strategy session,or ghdjoin a teleseminar orghd hair straighteners webinar, etc. ghd straighteners-- the result ghd hair ironis a desired ghd hair curlsaction."Conversion ghdPercentage" (sorry, ghd hair straightenersjust a little bitghd straighteners of math here) is definedghd hair iron as the "number ofghd hair curls NEW sales" divided by ray ban sunglassesthe "numberray ban aviator sunglasses of leads" times 100.And in the above case, "NEW sales" are people who are giving you money for the very first time (they're not repeat ray ban sunglasses storeclients) and "leads" are people who have expressed, in some way, an interest in what you're offering -- whether they visited your website, called your office, sent you an email, etc.

[LJH]

"New Client Cost" replica handbagsis defined asreplica watches how much it costsDesigner clothing for you to Designer replica handbagsmarket to someoneWholesale jewelry such that Replica rolex watchesthey give you replica handbagmoney for theReplica Handbags first time.Replica Watches"Extreme Client replica designer handbagsCare(tm)" describes Coach Handbagsthe process by which the betterGucci Handbags the care youRolex Watches provide hair straightenersto your clients,GHD the less likelychi hair straighteners they'll be to Ladies Shopswitch toWomen Shop another vendor.replica handbags (More on this wholesale handbagsin an upcoming series.)Why replica designer handbagsdo these terms Gucci Handbagsmatter?Quite replica prada handbagssimply put, thereplica watch better your conversion, theswiss replica watches lower your newreplica rolex watches client cost ANDwholesale omega watches the better yourpuma shoes client care,nike shoes the less new clientswomens clothesyou'll need as existing ed hardy clothingclients won't leaveAdidas Shoes your servicelacoste Clothes and will referwholesale clothing others who cost wholesale handbagsalmost nothing to market toghd hair straighteners (and therefore lower your new client cost even further).ou may want to read ghd straightenersthe above paragraph again to truly absorb the logic.Make It Real -- My Request to ghdYouBefore we can even chat about increasing your conversions, you need to know where you stand today.