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What Is The Procedure Of Booting A Computer System?

7 Answers

Dolphin Lee Profile
Dolphin Lee answered
First step: When we press the power switch, the supply will start to the mainboard and other equipment, power, voltage stability, not too on the mainboard chipset to CPU control will be issued and maintain a RESET (RESET) signal, let the CPU automatically restored to its original state within the CPU at this moment, but not immediately executes instructions.
Step 2: System BIOS startup code: The first thing to do is to get On the POST (Power - Power, after the Test Self).
Third step: Find the system BIOS will display the BIOS.
Fourth step: Find out all other equipment, after the BIOS system BIOS displays its own splash screen, including system BIOS version number and type, etc.
Step 5: Then system BIOS would detection and display of CPU type and working frequency, and then began to test all of the RAM, and also on the screen test schedule. Memory,
Step 6: Memory test after, detection system BIOS will begin in the standard system installed hardware device.
Step 7: After testing equipment, standard system BIOS internal to support plug and play code will begin testing and installed in the system configuration of the plug and play devices.
Step 8: The BIOS updates will ESCD system.
9 ESCD step: After the update, system BIOS start-up code will make it last job, according to the specified user startup sequence from floppy disk, hard disk or cd-rom start.
Anonymous Profile
Anonymous answered
Booting is the term used to start up a computer from an unpowered or uninitialized state.

The term comes from the idea that "a cowboy would have to pick himself up by his bootstraps," which is really an impossible task.  But if you consider that a computer doesn't even know how to communicate with its own hard drive when it's first turned on, there is a similar dilemma.  It needs an operating system to operate, but the operating system IS on the hard drive.  So to solve this dilemma, some computer commands that are needed to start up are hard coded into memory on a chip called the Boot ROM in the BIOS.

So when we say we need to 'reboot' or 'cold boot,' what we are saying is to restart the computer all the way from zero.  It will reload the entire operating system and initialize all hardware components so you have a usable computer.  A 'soft start' is when only part of the system is restarted.
Bob Yacknowitz Profile
Bob Yacknowitz answered
The original term for Boot was Initial Program Load or IPL. And Boot is an abbreviation for Bootstrap. When you initially power on a computer, there is no Operating System Software in memory. This creates a Catch-22. Without software in memory, how can you load software into memory? You need to Boot or IPL.

There are enough instructions and info in the Firmware or microcode of a computer to do the IPL. And it's much less volitale than instructions on a hard drive and it is operating system independent. On a PC, it's called the BIOS.

One of the items in the BIOS is the drive letter of the IPL device. This allows you to change the device during the IPL process in case the default device is corrupted. The only remaining item to be determined is the location of the software on the device.

The Bios does not have access to a directory or the instructions necessary to find the IPL instructions on the device. Therefore, the location is by convention, Sector zero(I believe?) on a PC is the location of the IPL instructions. Once the IPL instructions are loaded into memory, the processor can use them to load the actual Operating System Software. At that point, the full operating system software usually takes control.

I state "usually" because of the way the windows operating system takes control. Because PCs have an unusually broad and complex array of hardware, as such, it requires specific software(drivers) to operate the devices. This can impact the initial operation of the software. To minimize the impact of those devices on the initial operation, windows can be loaded in "Safe Mode" to minimize the impact. This "Safe Mode" loads drivers that are common to a type of device and not vendor supplied.
Steven Vakula Profile
Steven Vakula answered
Starting up your computer of a program on you computer. Mainly it is the act of starting the hard drive and powering up the computer.
James Anderson Profile
James Anderson answered
Booting in computer is powering it on starting the operating system.which section will identify the performance is the boot process.
fredrick eti Profile
fredrick eti answered
Booting is the process of turning on the computer
these are two types of booting
COLD BOOTING and
WARM BOOTING

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