You may receive an error message stating that the architecture of the windows XP kernel pdf. There are several ways to solve this problem, and we will focus on them now.
Introduction Windows XP Architecture WIN133
Today… Exploring the Order of Processes and Threads in the Windows 2000/XP Operating System A Programmer’s View of How XP Works How Programs Work in XP
Questions : What does “architecture” mean? What does this mean for computers?
Architecture similar to Windows 2000/XP Key elements of XP: design style using layers Object-oriented client/server abstraction
AArchitecture – Layers XP windows is built on Layers… Custom Mode – A layer that will help you save your loved one. Family-managed applications (word, netscape). “A layer on the market nearest hardware programs that help programs running on our system to use all of the computer’s hardware device drivers (software user interfaces with hardware)< br>
Layers (continued) Everything starts from your PC Windows hardware was xp is designed to run on almost every type of hardware, so instead of writing different versions for each hardware platform that XP refers to, MS developed HAL. The hardware abstraction is the software that sits between XP and your PC hardware. xp knows nothing about your hardware. Provide it to HAL. Whenever XP wants to do something to your hardware, the application asks HAL how to do it. do
(continue) Layers Over HAL is XP Kernel Are Kernel Mode Programs “Trusted”? CPU, RAM and c.) Component (mainly provided), MS Hardware manufacturers also provide driver software for musical instruments. This software must undergo rigorous testing. This intransigence alone can make a big difference. But it’s extremely important because it provides the building blocks for most of the executive services running in that kernel (I/O) that the microkernel relies on to do all of this. microkernel Together and executive services make up the core of Windows XP
(continued) User-mode subsystem issues provided by Microsoft. These subsystems… yours allow users to make choices.Providing services for everything related to applications, clients, servers, and sharing services
Email client, text sentence processing, etc.
application architecture diagram < br> 32-bit Win
32-pBit Application Win
32-bit Subsystem (Win32 API)< br>
User Mode Kernel Mode Executive Services I/O Manager File Systems
Security Control Monitor
Virtual Memory Manager
Plug and Play Manager
Device Driver Object Manager
Layer Hardware Abstraction (HAL)
Window Manager and GDI Graphics Device Driver
Architecture – im Applications Windows XP architecture is the key to: Reliability Scalability (Professional, Advanced server, Server, Datacenter Server) Security Portability (works on Intel AND all platforms) br>
How should it work? all Let’s start with a few terms… program process flow
program and application This is… Software that is stored on a disk or on a new medium. Here we are referring to the program “Microsoft Word” (that is, the one that your family can buy)
Definitions (Process) Process Programma, an executable operating system that was loaded with memory (such as a hard drive) in memory. over a long period It includes… System resources needed to run (e.g. RAM, etc.) One or a set of threads A single executable piece of software. Programs where you create IPC elements are an example single threaded program. Larger programs also tend to use multiple threads.
Examples: More threads about Each thread represents a single entity in the executable code. The programmer, when creating threads, decides when to execute multiple tasks at the right time or cannot wait. for a single task that needs to be completed before starting. When multiple threads are used, the program seems to run more efficiently. Always only one thread running at a time
– examples of many threads Examples of threads (again…) text editing, spell checking,
Each thread can run Br>Examples independently<
Microsoft Office 2000 program, Stored in C:Program FilesMicrosoft Office
WINWORD.EXE process (loaded with Edit Memory
text streams, enchantments, print check, etc.< br> < br> Ok, sensible, so it’s built on layers and also many threads, but how does the OS try to run programs? my answer: APIs in addition to libraries
Definitions Let’s define other terms: Programming API (Application Interface) Dynamic Link Library (DLL)
What is microkernel architecture in Linux?
All CentOS Linux distributions – Ubuntu, Red Hat Fedora, Hat Open SUSE enterprise, and all other Linux distributions. A microkernel architecture can be an architecture in which the kernel often has basic mutual interaction with hardware and basic interprocess communication mechanisms. All other services in your operating system exist in the kernel’s backyard.
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