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Overview
Microsoft Windows 11 is a consumer version of the Windows operating system developed and marketed by Microsoft Corporation. It is the successor to Windows Vista and Windows 7, and it marks the third installment in the Windows series. Released on October 26, 2015, Windows 11 was announced at the Consumer Electronics Show (CES) in Las Vegas.
Key Features
Windows 11 brings several significant improvements over its predecessors:
- Enhanced Security: A redesigned User Account Control (UAC) interface and a more secure login process make it harder for attackers to gain unauthorized access.
- Improved Performance: Windows 11 optimizes system resources, reduces background processes, and improves overall performance through the use of technologies like Hyper-V and Direct3D.
- New Features:
* Universal Apps: Allows users to run apps on both desktop and mobile devices with a single account.
* Microsoft Edge Browser: A new web browser that offers improved security, speed, and features like built-in ad blockers.
* Windows 11 Duet: Enables two screens per user for multitasking and improved productivity.
- File System Improvements: Windows 11 introduces the concept of a unified file system, allowing users to access files across devices seamlessly.
System Components
The system consists of several key components:
- User Interface (UI): The interface used to interact with the operating system, including the Start menu, Taskbar, and other graphical elements.
- Process: A collection of running programs that manage system resources, handle tasks, and perform various tasks.
- Memory: Memory management unit (MMU) manages memory allocation, deallocation, and virtual memory switching.
- Storage: A hard disk drive or solid-state drive (SSD) holds the operating system files, apps, and data.
Operating System Architecture
The Windows 11 architecture is based on a client-server model:
- Client-side components: Running programs and services, such as the desktop environment, device drivers, and device management software.
- Server-side components: The operating system itself, kernel, and other essential components like hardware abstraction layer (HAL).
- Communication: Communication between client-side components and server-side components using various protocols (e.g., TCP/IP, HTTP).
Security Features
Windows 11 includes several security features to protect user data:
- User Account Control (UAC): A feature that enforces user consent before performing actions that require administrative privileges.
- Windows Defender: A built-in antivirus software that scans for malware and other threats.
- Secure Boot: A process that initializes the system with a trusted boot process, ensuring the integrity of installed applications.
Overall, Windows 11 provides users with improved security, performance, and features to enhance their computing experience.
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