What is BIOS?
The basic input/output system (BIOS) is an electronic set of instructions that a personal computer (PC) uses to run a successful start. It is located on the chip on the motherboard inside the computer and is designed to be protected from the disk failure. Although it can be updated, it should be done carefully to avoid damage to the computer or leave it inability. Some manufacturers of computer like Apple ™ use other systems such as open firmware.
BIOS function
One of the main features of BIOS is to provide instructions for a self -service test (POST). This Self Test ensures that the computer has all the necessary parts and functionality needed to run, such as using memory and keyboard and other components. If errors are detected during the test, the computer will provide a code that reveals a problem. Error codes are usually presented as a number of beeps heard shortly after launch. Basic information on how to interact with some critical components such as fixed diSky and memory needed to load the operating system (OS). Once the basic instructions are loaded and a self -service test, the computer can continue by loading axes from one of the connected units. Functions and control over hardware on your computer are then handed over to the OS and then controls the system.
as stored on computer
Traditional firmware BIOS is included on the computer's motherboard, as is read only by memory (ROM). This means that the system is accessible, but is not dynamically written to the way the computer's hard disk is during operation. The battery on the motherboard keeps the data intact on it, even if the computer is turned off without using it. Although it is sometimes confused with additional oxide oxide oxide (CMOS), BIOS refers to firmware on the motherboard, while the CMOS is a physical location where the data date and configuration of the system are stored.
Many PC manufacturers today use to hold this memory system FLash, which allows users easier to update on computers. This can solve problems with the original BIOS or add a new feature. Users can regularly check new versions because some suppliers release numerous updates throughout the product's life. If you want to find an update, users should check the manufacturer of their motherboard. However, these updates should be carried out carefully, as incorrect versions or corrupt software may prevent the computer from running.
Configuration and BIOS control
PC users can make some adjustments to the system through the configuration screen on your computer. The setting screen is usually accessible with a special sequence of keys during the first moments of starting, often "delete" or function key. This screen sets up the settings to change the order in which the units are accessible during startup, monitor the temperatures of the computer components, and check the functionality of the device range. Most users of a computerE never needs access to these systems on its computer, although many simple bug fixes may require adjustments.