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Beyond the Power Button: The Hidden Architecture of Firmware, Bootloaders, and System Startup - Couverture souple
Synopsis
What Really Happens After You Press the Power Button?
You press the power button. The screen comes alive, hardware is initialized, a bootloader runs, and eventually your operating system appears.
But what actually happens in between?
Before Windows, Linux, or another operating system can run, a surprisingly complex sequence has already taken place. The processor has to begin execution from a reset state. Firmware has to initialize the platform and discover its hardware. A bootloader has to locate and prepare the operating system. Memory and processor modes have to be configured correctly. Security mechanisms may verify each stage. Finally, control has to be transferred to the kernel.
Beyond the Power Button takes you behind that process and explains how these pieces fit together.
Rather than treating firmware and boot architecture as a collection of isolated concepts, this book follows the startup process as a connected chain, beginning with the processor's first instructions and progressing toward a complete boot-to-kernel system.
Inside the Book, You Will Learn:- How processor reset vectors work and where the first instructions execute
- How firmware bridges the gap between hardware and the operating system
- Traditional BIOS, POST, boot sectors, and the Master Boot Record
- UEFI, EFI System Partitions, boot managers, and .efi applications
- CPU initialization and the transition between real mode, protected mode, and long mode
- Memory initialization and the fundamentals of DRAM training
- PCI and PCI Express device discovery
- Storage, USB, ACPI, and platform hardware information
- How bootloaders locate kernels and prepare the machine for them
- What happens during the handoff from a bootloader to a kernel
- Firmware development concepts and the EDK II ecosystem
- Secure Boot, digital signatures, TPMs, measured boot, and firmware security
- Practical methods for diagnosing failures during system startup
- How the individual stages fit together into a complete boot architecture
This is not simply a high-level discussion of firmware. The book reinforces its explanations with practical examples involving assembly language, boot sectors, processor mode transitions, hardware access, PCI enumeration, bootloader development, and kernel handoff.
The examples are introduced progressively so you can connect the code and low-level operations to the larger boot process. Instead of seeing system startup as something that happens invisibly inside a computer, you get a structured way to examine what each stage is doing and why it matters.
Who Is This Book For?Beyond the Power Button is written for readers who want to understand computers below the operating-system level.
It is particularly useful for:
- Computer science and computer engineering students
- Systems programmers interested in how software starts before the OS
- Firmware and bootloader developers
- Embedded systems and low-level software developers
- Operating-system development enthusiasts
- Security researchers interested in firmware and the boot chain
- Engineers working at the hardware/software boundary
- Software developers who want to understand the startup process at a deeper level
- Independent learners studying firmware, boot architecture, and low-level systems
The material progresses from the fundamentals of processor startup into more advanced topics, making it suitable for readers who are new to firmware development but already have some familiarity with programming and computer architecture.
From Power-On to KernelOne of the central ideas of the book is that system startup is not a single event. It is a sequence of connected stages.
Les informations fournies dans la section « Synopsis » peuvent faire référence à une autre édition de ce titre.
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Beyond the Power Button: The Hidden Architecture of Firmware, Bootloaders, and System Startup
impression à la demandeVendeur : California Books, Miami, FL, Etats-Unis
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Etat : New. Print on Demand. N° de réf. du vendeur I-9798176642681
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Beyond the Power Button (Paperback)
Vendeur : Grand Eagle Retail, Bensenville, IL, Etats-Unis
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Paperback. Etat : new. Paperback. What Really Happens After You Press the Power Button?You press the power button. The screen comes alive, hardware is initialized, a bootloader runs, and eventually your operating system appears.But what actually happens in between?Before Windows, Linux, or another operating system can run, a surprisingly complex sequence has already taken place. The processor has to begin execution from a reset state. Firmware has to initialize the platform and discover its hardware. A bootloader has to locate and prepare the operating system. Memory and processor modes have to be configured correctly. Security mechanisms may verify each stage. Finally, control has to be transferred to the kernel.Beyond the Power Button takes you behind that process and explains how these pieces fit together.Rather than treating firmware and boot architecture as a collection of isolated concepts, this book follows the startup process as a connected chain, beginning with the processor's first instructions and progressing toward a complete boot-to-kernel system.Inside the Book, You Will Learn: How processor reset vectors work and where the first instructions executeHow firmware bridges the gap between hardware and the operating systemTraditional BIOS, POST, boot sectors, and the Master Boot RecordUEFI, EFI System Partitions, boot managers, and .efi applicationsCPU initialization and the transition between real mode, protected mode, and long modeMemory initialization and the fundamentals of DRAM trainingPCI and PCI Express device discoveryStorage, USB, ACPI, and platform hardware informationHow bootloaders locate kernels and prepare the machine for themWhat happens during the handoff from a bootloader to a kernelFirmware development concepts and the EDK II ecosystemSecure Boot, digital signatures, TPMs, measured boot, and firmware securityPractical methods for diagnosing failures during system startupHow the individual stages fit together into a complete boot architectureBuilt Around Practical ExamplesThis is not simply a high-level discussion of firmware. The book reinforces its explanations with practical examples involving assembly language, boot sectors, processor mode transitions, hardware access, PCI enumeration, bootloader development, and kernel handoff.The examples are introduced progressively so you can connect the code and low-level operations to the larger boot process. Instead of seeing system startup as something that happens invisibly inside a computer, you get a structured way to examine what each stage is doing and why it matters.Who Is This Book For?Beyond the Power Button is written for readers who want to understand computers below the operating-system level.It is particularly useful for: Computer science and computer engineering studentsSystems programmers interested in how software starts before the OSFirmware and bootloader developersEmbedded systems and low-level software developersOperating-system development enthusiastsSecurity researchers interested in firmware and the boot chainEngineers working at the hardware/software boundarySoftware developers who want to understand the startup process at a deeper levelIndependent learners studying firmware, boot architecture, and low-level systemsThe material progresses from the fundamentals of processor startup into more advanced topics, making it suitable for readers who are new to firmware development but already have some familiarity with programming and computer architecture.From Power-On to KernelOne of the central ideas of the book is that system startup is not a single event. Shipping may be from multiple locations in the US or from the UK, depending on stock availability. N° de réf. du vendeur 9798176642681
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Beyond the Power Button
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PAP. Etat : New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000. N° de réf. du vendeur L0-9798176642681
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Beyond the Power Button
impression à la demandeVendeur : PBShop.store UK, Fairford, GLOS, Royaume-Uni
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PAP. Etat : New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000. N° de réf. du vendeur L0-9798176642681
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Beyond the Power Button (Paperback)
Vendeur : CitiRetail, Stevenage, Royaume-Uni
Évaluation du vendeur 5 sur 5 étoiles
Paperback. Etat : new. Paperback. What Really Happens After You Press the Power Button?You press the power button. The screen comes alive, hardware is initialized, a bootloader runs, and eventually your operating system appears.But what actually happens in between?Before Windows, Linux, or another operating system can run, a surprisingly complex sequence has already taken place. The processor has to begin execution from a reset state. Firmware has to initialize the platform and discover its hardware. A bootloader has to locate and prepare the operating system. Memory and processor modes have to be configured correctly. Security mechanisms may verify each stage. Finally, control has to be transferred to the kernel.Beyond the Power Button takes you behind that process and explains how these pieces fit together.Rather than treating firmware and boot architecture as a collection of isolated concepts, this book follows the startup process as a connected chain, beginning with the processor's first instructions and progressing toward a complete boot-to-kernel system.Inside the Book, You Will Learn: How processor reset vectors work and where the first instructions executeHow firmware bridges the gap between hardware and the operating systemTraditional BIOS, POST, boot sectors, and the Master Boot RecordUEFI, EFI System Partitions, boot managers, and .efi applicationsCPU initialization and the transition between real mode, protected mode, and long modeMemory initialization and the fundamentals of DRAM trainingPCI and PCI Express device discoveryStorage, USB, ACPI, and platform hardware informationHow bootloaders locate kernels and prepare the machine for themWhat happens during the handoff from a bootloader to a kernelFirmware development concepts and the EDK II ecosystemSecure Boot, digital signatures, TPMs, measured boot, and firmware securityPractical methods for diagnosing failures during system startupHow the individual stages fit together into a complete boot architectureBuilt Around Practical ExamplesThis is not simply a high-level discussion of firmware. The book reinforces its explanations with practical examples involving assembly language, boot sectors, processor mode transitions, hardware access, PCI enumeration, bootloader development, and kernel handoff.The examples are introduced progressively so you can connect the code and low-level operations to the larger boot process. Instead of seeing system startup as something that happens invisibly inside a computer, you get a structured way to examine what each stage is doing and why it matters.Who Is This Book For?Beyond the Power Button is written for readers who want to understand computers below the operating-system level.It is particularly useful for: Computer science and computer engineering studentsSystems programmers interested in how software starts before the OSFirmware and bootloader developersEmbedded systems and low-level software developersOperating-system development enthusiastsSecurity researchers interested in firmware and the boot chainEngineers working at the hardware/software boundarySoftware developers who want to understand the startup process at a deeper levelIndependent learners studying firmware, boot architecture, and low-level systemsThe material progresses from the fundamentals of processor startup into more advanced topics, making it suitable for readers who are new to firmware development but already have some familiarity with programming and computer architecture.From Power-On to KernelOne of the central ideas of the book is that system startup is not a s Shipping may be from our UK warehouse or from our Australian or US warehouses, depending on stock availability. N° de réf. du vendeur 9798176642681
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Beyond the Power Button : The Hidden Architecture of Firmware, Bootloaders, and System Startup
Vendeur : AHA-BUCH GmbH, Einbeck, Allemagne
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Taschenbuch. Etat : Neu. Neuware. N° de réf. du vendeur 9798176642681
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