Operating System Generation and System Boot

Operating System: Operating System Generation and System Boot
Topics discussed:
1. Operating System designs.
2. Operating System Generation (SYSGEN).
3. System Boot.
4. Bootstrap program/ Bootstrap loader.
5. ROM/ Firmware.

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Music:
Axol x Alex Skrindo - You [NCS Release]

#OperatingSystemByNeso #os #OperatingSystem #OperatingSystemGeneration #SystemBoot

[hoangminhchau]

1) Operating system generation
- There are 2 types of operating system design, for one machine and for multiple machines
- In order to adapt to different kinds of machines, the OS use the SYSGEN process to determine the requirements:
+ Which CPU the machine using ?
+ Which devices ?
+ Memory of the machine ?

2) System boot
- System bootstrap is the first program to be executed when the computer starts
- It will locate the OS kernel and load it into the memory to be executed
- This program is located in the ROM because ROM needs no initialization and safe to computer virus (read-only)
- The OS is located on the disk

[quratraja]

Such an amazing teacher with beautiful soft voice.
To my level of understanding from this lecture, operating systems can be designed in two possible ways, one for a specific machine or hardware while the other approach designs in compatible way so that it can run on versatile environments.
Booting is the process of starting computer and making it in running mode. Bootstrap loader is the program that initialize booting. It resides in ROM. It locates OS, loads into memory and executes. OS resides in disk.

[chakrabortibabu]

Actually what you referred to bootloader/bootstrap loader, resides in HDD, sector- 0. The firmware, which is stored in ROM is called BIOS which is coded in machine language . The BIOS is told to by-default look into the sector-0 for MBR(Master Boot Record) after POST. In MBR, there is a part of code which is known as boot-loader. This boot loader now searches for OS kernel in HDD & later takes it to RAM. Now, the control is handed to OS.

[aboutknowledge]

completed 15 lectures in 2 days, ,feeling gd... i will put all these lectures in my mind :D, , thanku so much sir

[Surajrawat-xxgw]

Bro u r the best no one can teach better than u keep it up

[SuccessMindset]

1. Procedure (metaphysics)
2. Operating system is better when it can be customized
3. System generation is easier than it seems at first
4. System boot can be very useful
5. ROM as security measure can be effective
6. Firmware is interesting

[vishakhadighe]

You are really a good videos really very help me in my studies....thank u so

[ankithareddy]

Neso academy is the best platform to learn . Great work ....😊

[dodziraynard]

Is there a better way I can praise this course?
This is the best OS course I've found on Youtube. Thank you so much @Neso Academy.

[dasaridharani]

Neso academy is wonderful channel for learning most of the subjects
Thank you for ur effort sir..
Keep doing..

[golubisht]

Very good teaching techniques really appreciate the effort keep going..❤️❤️

[prasanth-venkata-kumar]

It's good to learn a d understand easily

[saipratapdannana]

Bro please do more videos on operating system.

[trilecao]

Thanks for bootstrap (bootloader) and firmware.

[climpZ_k]

Can you please Upload the PPT's you have used for revision references??

[chiraglulla]

As Bootstrap program is in ROM which is read only then how does the bootstrap program itself executes?

[shristiuniyal]

kernel is loaded into which memory? ram right which is the main memory ?

[keerthyreddy]

Where does the boot strap programme resides