BIOS (basic input/output system) - The 4 functions of BIOS

BIOS (basic input/output system) - The 4 functions of BIOS

• 1.
  BIOS CONFIGURATION Basic Input/outputSystem (BIOS)
• 2.
  Basic Input/Output System(BIOS) • also known as ROM BIOS, System BIOS, or PC BIOS works in close proximity with the Complementary Metal-Oxide Semiconductor (CMOS). • When you start the computer, the BIOS initializes the booting of the hardware and it is the foundation which provides runtime services to all the programs and software that is use in computer. It is preinstalled in the motherboard, and it is the first thing that runs when you switch on the computer.
• 3.
  What is includedin BIOS? • The BIOS includes instructions on how to load basic computer hardware. It also includes a test referred to as a POST (Power- On Self-Test) that helps verify the computer meets requirements to boot up properly. If the computer does not pass the POST, you will receive a combination of beeps indicating what is malfunctioning in the computer.
• 4.
  Functions of BIOS •The principal purpose of BIOS is to lever the setup of the system enabling the loading of drivers, and booting of the Operating System (OS).
• 5.
  Functions of BIOS 1.Configuring System Hardware The primary task of BIOS is to organize all the hardware of the system. These drivers are the major responsible for setting up and preparing the memory of the system. It also designs the other devices required for using the computer like the hard disk, optical drives, music card, graphics card.
• 6.
  Functions of BIOS 2.System Boot When you switch on the power button on your computer, you must have noticed a splash screen, and this is when BIOS is loading the initial Complementary Metal- Oxide Semiconductor, i.e. the CMOS, as during this phase the BIOS not only initialize the CMOS but also the hard disks of the system. It starts the booting process of the operating system after ensuring that all the drivers are not only loaded but also configured appropriately for usage.
• 7.
  Functions of BIOS 3.CMOS and Battery Backup. Both the CMOS and the BIOS work together. When you start your computer, and it boosts, it is the mechanism on the BIOS chip which reads the data from the CMOS chip. Along with the BIOS, the CMOS is a substantial part in your computer’s motherboard. CMOS is a retention chip where all the computer’s mechanisms and their related setting are configured and is initiated when you start the computer.
• 8.
  Functions of BIOS 4.Bootstrap Loader A bootstrap is a function which exists in the Random Operating Memory of the computer. When you turn on the machine, it loads automatically. It goes through the hard disk’s boot division and continues the procedure of charging the operating system. When you first start the computer or restart it, the first task that the bootstrap loader performs is self-testing, which is also commonly known as Power on Self-Test (POST). If the POST is fruitful and there are no issues found, the bootstrap loader will then proceed to load the operating system for the computer into memory. This entire process enables the computer to swiftly contact the operating system, load it, and run it for your enhanced experience.
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  Functions of BIOS 5.BIOS Drivers BIOS theoretically refers to the complete set of device drivers in your system which provides a connection between the hardware and the software of the computer. The existence of a system depends on the presence of BIOS in it.
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  Four Main Functionsof a PC BIOS  POST - Test the computer hardware and make sure no errors exist before loading the operating system.  Bootstrap Loader - Locate the operating system. If a capable operating system is located, the BIOS will pass and have control into it.  BIOS drivers - Low-level drivers that give the computer basic operational control over your computer's hardware.  BIOS setup or CMOS setup - Configuration program that allows you to configure hardware settings including system settings such as computer passwords, time, and date.
• 11.
  Can a BIOSchip be upgraded or updated? To determine the type of version of BIOS on your computer, you need to access the BIOS setup. On the main BIOS screen, it should display the BIOS type, like AMI, Award, or Phoenix.