This PPT shares some information on what is booting process and different stages in it. Importance of BIOS and BootROM. Steps involved for loading kernel into RAM. What is the importance of init RAM disk (initrd), when 1st user space application is started and who will create init process.
This PPT shares some information on what is booting process and different stages in it. Importance of BIOS and BootROM. Steps involved for loading kernel into RAM. What is the importance of init RAM disk (initrd), when 1st user space application is started and who will create init process.
Contents
What is booting ?
Diagram of booting process.
What is post ?
About boot loader .
BSL (boot strap loader).
MBR ( Master boot record ).
Booting files.
About win boot loader .
Types of booting.
• Booting :- Booting is a process which helps the to get desktop after power on.
• After power on the pc , which process occurs for get a desktop .
A tutorial for beginners who are curious to learn about the Linux boot process. If you have any more doubts, you can contact me through my email given in the slide, or through my blog: mastro77.blogspot.in
In this PPT i described about the operating system and what is window 10. also tell about the new feature that are in window 10,and of the PPT i write the conclusion of the window 10.
Contents
What is booting ?
Diagram of booting process.
What is post ?
About boot loader .
BSL (boot strap loader).
MBR ( Master boot record ).
Booting files.
About win boot loader .
Types of booting.
• Booting :- Booting is a process which helps the to get desktop after power on.
• After power on the pc , which process occurs for get a desktop .
A tutorial for beginners who are curious to learn about the Linux boot process. If you have any more doubts, you can contact me through my email given in the slide, or through my blog: mastro77.blogspot.in
In this PPT i described about the operating system and what is window 10. also tell about the new feature that are in window 10,and of the PPT i write the conclusion of the window 10.
Social Commerce 2.0 With CPC Strategy & AddShoppersTinuiti
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Given the volatility of the commercial property market and, by comparison, the relatively high yields on offer when residential elements are included in the development mix, it is no wonder that commercial developers have seen an opportunity and that mixed-use developments now dominate the market.
I have tried to present maximum detail on android booting sequence in a very abstract way. I hope it would be useful. If you find any correction needed please mention it on comments. Happy Coding :)
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But what is behind that?
Linux Boot process is very similar to the Big Bang which happened in our world: from singularity to the whole beautiful Universe of running Linux processes. What do you think is a black hole equivalent in the Linux? Come to hear about all of that from an engineer who worked on a new processors and boards bringup, Linux boot process modifications and did boot time optimization many times.
Course 101: Lecture 2: Introduction to Operating Systems Ahmed El-Arabawy
This lecture goes into an introduction to the role and functionality of operating systems in Embedded Systems and in computer systems in general
Check the other Lectures and courses in
http://Linux4EnbeddedSystems.com
or Follow our Facebook Group at
- Facebook: @LinuxforEmbeddedSystems
Lecturer Profile:
Ahmed ElArabawy
- https://www.linkedin.com/in/ahmedelarabawy
The kernel is the central module of an operating system (OS). It is the part of the operating system that loads first, and it remains in main memory. Because it stays in memory, it is important for the kernel to be as small as possible while still providing all the essential services required by other parts of the operating system and applications. The the kernel code is usually loaded into a protected area of memory to prevent it from being overwritten by programs or other parts of the operating system.
Typically, the kernel is responsible for memory management, process and task management, and disk management. The kernel connects the system hardware to the application software. Every operating system has a kernel.
This Tutorial will provide you information on working of operating system. Main topics are following and further sub-topics are discussed in detail.
1. Kernel Architecture.
2. Initialization of operating system.
3. Process of operating system.
4. Management in operating system.
5. File system.
6.Security in operating system.
7.Interface in operating System.
Course 102: Lecture 25: Devices and Device Drivers Ahmed El-Arabawy
This lecture discusses the concept of Linux device Drivers and Kernel Loadable Modules in general. It shows how to handle them such as loading/unloading ,and querying for their info. It also discusses the role of device files and how it binds to device drivers in the Linux Kernel
Video for this lecture on youtube:
http://www.youtube.com/watch?v=5qhgMyPyvVE
Check the other Lectures and courses in
http://Linux4EnbeddedSystems.com
or Follow our Facebook Group at
- Facebook: @LinuxforEmbeddedSystems
Lecturer Profile:
Ahmed ElArabawy
- https://www.linkedin.com/in/ahmedelarabawy
The linux kernel hidden inside windows 10mark-smith
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Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
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1. OPERATING SYSTEM
Boot process of windows 10
13004065105 Awais Ajaz
13004065107 Faizana Naeem
13004065093 Mashal Khalid
13004065074 Abdulrehman
2. UEFI
• UEFI: ”Unified Extensible Firmware Interface”:
• UEFI initializes firmware at the start.
• Firmware initializes Low level hardware
• After that it loads and execute EFI drivers
• UEFI Windows setup install into system’s non-volatile RAM(NVRAM).
• BCD stored in NVRAM
• EFI boot manager loads Winresume.EFI
3. Kernel
• The applicable kernel and HAL files are loaded
• Two files are loaded NTOSKRNL.exe HAL.dll
• VGAOFM.fon is loaded
• System registry hive is loaded
A list of Service_boot_start drivers gathered at this point e.g . storage control drive
• NTFS file system is loaded
• Boot time device drivers are now loaded
• Kernel initialization starts when windows boot loader call the kisystemstartup function of the
kernel.
• NTOSKRNL have two phases Phase 0 Phase 1
4. Phase Zero Initialization
• Interrupts disabled
• Asking HAL to initialize each processor on the system.
• Kiinitialize responsible for initialize kernel code and data structure.
• It transfer the control to InitBootprocessor.
Remove access to the specified amount of physical memory from the BCD option
BURNMEMORY.
Initializes the translation between ANSI.OEM and Unicode text
Initializes the process clock timer interrupt.
• Initializes paged and non-paged pool which is memory used by system and drivers
• InitBootprocess initializes other kernel components.
• Object manager is initialized
5. • Process manger is initialized
system idle process, the system process created during this step
• Plug and play manager initialized
• InitBootprocess initialize deferred procedure call (DFC) structures f the processor.
• transfer the control to “system idle process” if any thread call phase 1 initialization.
• Phase 1 initialization
• HAL prepares all of the system interrupt handling and the subsequently turn on the interrupt
• After interrupts have been setup
• Bootvid diver responsible for the boot screen initialized.
• After the power manager is started.
time that system has booted also record
• Remaining processors in a multiple processor system initialized
• The object manager and the kernel executive initialized
create global namespace and other directories
various objects(semaphores and mutexes)
Kernel scheduler is initialized
6. • List of drivers to start
superfetch
prefetcher
• After which file system driver asked to perform preliminary initialization
• I/O manger performs
• Configuration manager(to see system are identical in the features they support otherwise crash)
• Power manager initializing and SMSS is started
• After that winload.exe file is loaded and displays the window login screen
• After that desktop.ini file is loaded and display the desktop.