Which location on a hard disk does the BIOS use to search for operating system instructions in order to boot a PC?
Which location on a hard disk is used by the BIOS to search for operating system instructions in order to boot a PC?
- the logical drive.
- the active partition.
- the Windows partition.
- the extended partition. Explanation: On a hard disk, up to four primary partitions can be created.
29 мар. 2016 г.
What is the use of BIOS?
BIOS, in fullBasic Input/Output System, Computer program that is typically stored in EPROM and used by the CPU to perform start-up procedures when the computer is turned on. Its two major procedures are determining what peripheral devices (keyboard, mouse, disk drives, printers, video cards, etc.)
How does BIOS load the operating system?
Upon start-up, the BIOS goes through the following sequence:
- Power-on self-test (POST)
- Detect the video card’s (chip’s) BIOS and execute its code to initialize the video hardware.
- Detect any other device BIOSes and invoke their initialize functions.
- Display the BIOS start-up screen.
26 янв. 2015 г.
Where is the saved BIOS configuration data stored?
The BIOS settings are stored in the CMOS chip (which is kept on power via the battery on the motherboard). That is why the BIOS is reset when you remove the battery and re-attach it. The same program runs but the settings are defaulted.
What is booting and its types?
Booting is the process of restarting a computer or its operating system software. … Booting is of two types :1. Cold booting: When the computer is started after having been switched off. 2. Warm booting: When the operating system alone is restarted after a system crash or freeze.
What else is a command interpreter called?
Command interpreter is an important part of any operating system. It provides an interface between the user and the computer. A command interpreter is often also called a command shell or simply a shell.
What is BIOS in simple words?
BIOS, computing, stands for Basic Input/Output System. The BIOS is a computer program embedded on a chip on a computer’s motherboard that recognizes and controls various devices that make up the computer. The purpose of the BIOS is to make sure all the things plugged into the computer can work properly.
What is the most important role of BIOS?
BIOS uses Flash memory, a type of ROM. The BIOS software has a number of different roles, but its most important role is to load the operating system. When you turn on your computer and the microprocessor tries to execute its first instruction, it has to get that instruction from somewhere.
What is the purpose of BIOS shadow answer?
The term BIOS shadow is the copying of ROM contents to the RAM, where the information may be accessed more quickly by the CPU. This copy process is also known as Shadow BIOS ROM, Shadow Memory, and Shadow RAM.
Can your computer boot without BIOS Why?
EXPLANATION: Because, without the BIOS, the computer will not start. BIOS is like the ‘basic OS’ which interconnects the basic components of the computer and allows it to boot up. Even after the main OS is loaded, it may still use the BIOS to talk to the main components.
What are the four functions of BIOS?
The 4 functions of BIOS
- Power-on self-test (POST). This tests the hardware of the computer before loading the OS.
- Bootstrap loader. This locates the OS.
- Software/drivers. This locates the software and drivers that interface with the OS once running.
- Complementary metal-oxide semiconductor (CMOS) setup.
Do you need hard drive to enter BIOS?
Yep. As long as the BIOS can detect a bootable partition (usually an operating system) from another connected storage device (like flash drives and external hard drives).
What settings can I change through BIOS?
How to Configure the BIOS Using the BIOS Setup Utility
- Enter the BIOS Setup Utility by pressing the F2 key while the system is performing the power-on self-test (POST). …
- Use the following keyboard keys to navigate the BIOS Setup Utility: …
- Navigate to the item to be modified. …
- Press Enter to select the item. …
- Use the up or down arrow keys or the + or – keys to change a field.
Where is Uefi located?
UEFI is a mini-operating system that sits on top of a computer’s hardware and firmware. Instead of being stored in firmware, as is the BIOS, the UEFI code is stored in the /EFI/ directory in non-volatile memory.
How do I know if I have a BIOS chip?
It can be anywhere on the periphery of the motherboard, but is usually near the coin cell battery. You’ll find the DTC reset pins nearby too. Also, sometimes the BIOS is “socketed” meaning the chip is in a socket instead of soldered onto the board.