I/O System

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  • Bài giảng Hệ điều hành: Chương 9 - I/O System sau đây sẽ trang bị cho các bạn những kiến thức về thiết bị phần cứng I/O; giao diện I/O cho ứng dụng; các dịch vụ của I/O subsystem; hiệu suất I/O. Mời các bạn tham khảo bài giảng để hiểu rõ hơn về những nội dung này.

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  • The most fundamental point to understand about the C++ I/O system is that it operates on streams. A stream is an abstraction that either produces or consumes information. A stream is linked to a physical device by the C++ I/O system. All streams behave in the same manner, even if the actual physical devices they are linked to differ. Because all streams act the same, the same I/O functions and operators can operate on virtually any type of device. For example, the same method that you use to write to the screen can be used to write to a disk...

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  • Bài giảng Hệ điều hành nâng cao - Chapter 13: I/O systems trình bày về I/O hardware, application I/O interface, kernel I/O subsystem, transforming I/O requests to hardware operations, STREAMS, performance.

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  • Lecture Operating system concepts (9th Ed) - Chapter 13 explore the structure of an operating system’s I/O subsystem, discuss the principles of I/O hardware and its complexity, provide details of the performance aspects of I/O hardware and software.

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  • The role of the operating system in computer I/O is to manage and control I/O operations and I/O devices. Although related topics appear in other chapters, here we bring together the pieces to paint a complete picture of I/O. First, we describe the basics of I/O hardware. Next, we discuss the I/O services provided by the operating system and the embodiment of these services in the application I/O interface. Then, we explain how the operating system bridges the gap between the hardware interface and the application interface.

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  • The role of the operating system in computer I/O is to manage and control I/O operations and I/O devices. Although related topics appear in other chapters, here we bring together the pieces to paint a complete picture of I/O. First, we describe the basics of I/O hardware. Next, we discuss the I/O services provided by the operating system and the embodiment of these services in the application I/O interface. Then, we explain how the operating system bridges the gap between the hardware interface and the application interface.

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  • Since the beginning of this book you have been using the C++ I/O system, but you have been doing so without much formal explanation. Since the I/O system is based upon a hierarchy of classes, it was not possible to present its theory and details without first discussing classes and inheritance. Now it is time to examine the C++ I/O system in detail. The C++ I/O system is quite large, and it won’t be possible to discuss here every class, function, or feature, but this module will introduce you to the most important and commonly used parts. Specifically, it shows...

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  • The problem with programmed I/O is that the processor has to wait a long time for the I/ O module of concern to be ready for either reception or transmission of data. The processor, while waiting, must repeatedly interrogate the status of the I/O module. As e result, the level of the performance of the entire system is severely degraded.

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  • I/O Hardware Application I/O Interface Kernel I/O Subsystem Transforming I/O Requests to Hardware Operations Streams Performance Explore the structure of an operating system’s I/O subsystem Discuss the principles of I/O hardware and its complexity Provide details of the performance aspects of I/O hardware and software .I/O Hardware Incredible variety of I/O devices Common concepts Port Bus (daisy chain or shared direct access) Controller (host adapter) I/O instructions control devices Devices have addresses, used by Direct I/O instructions Memory-mapped I/O...

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  • After studying this chapter, you should be able to: Summarize key categories of I/O devices on computers, discuss the organization of the I/O function, explain some of the key issues in the design of OS support for I/O, analyze the performance implications of various I/O buffering alternatives,...

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  • (BQ) Part 2 book "Operating systems - Internals and design principles" has contents: Uniprocessor scheduling, multiprocessor and real time scheduling, file management, I/O management and disk scheduling, embedded operating systems, embedded operating systems,...and other contents.

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  • Lecture Operating System: Chapter 05 - Input/Output presented Principles of I/O hardware, Principles of I/O software, I/O software layers, Disks, Clocks, Character-oriented terminals, Graphical user interfaces, Network terminals, Power management.

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  • Chapter 11 - I/O management and disk scheduling. After studying this chapter, you should be able to: Summarize key categories of I/O devices on computers, discuss the organization of the I/O function, explain some of the key issues in the design of OS support for I/O, analyze the performance implications of various I/O buffering alternatives,...

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  • Chapter 8 - Input/Output. The main contents of this chapter include all of the following: I/O basics; input from the keyboard; output to the monitor; a more sophisticated input routine; interrupt-driven I/O; implementation of memory-mapped I/O, revisited.

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  • Lecture Introduction to computing systems (from bits & gates to C & beyond) - Chapter 10: The stack. The main contents of the dissertation consist of three main parts: Stack data structure, interrupt I/O (again!), arithmetic using a stack.

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  • Module 11 The C++ I/O System Table of Contents CRITICAL SKILL 11.1: Understand I/O streams .............................................................................................. 2 CRITICAL SKILL 11.2: Know the I/O class hierarchy ....................................................................................... 3 CRITICAL SKILL 11.3: Overload the operators .............................................................................. 4 CRITICAL SKILL 11.4: Format I/O by using iso member functions ...............................................................

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  • Operating System: Chapter 5 - Input/Output presents about Principles of I/O hardware, Principles of I/O software, I/O software layers, Disks, Clocks, Character-oriented terminals, Graphical user interfaces, Network terminals, Power management.

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  • Lecture Operating system concepts (Sixth ed) - Module A: The FreeBSD system. The following will be discussed in this chapter: history, design principles, programmer interface, user interface, process management, memory management, file system, I/O system, interprocess communication.

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  • Chapter 8 - Input/Output. The main contents of this chapter include all of the following: I/O basics; input from the keyboard; output to the monitor; a more sophisticated input routine; interrupt-driven I/O; implementation of memory-mapped I/O, revisited.

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  • Chapter 10 - The stack. The main contents of the dissertation consist of three main parts: Stack data structure, interrupt I/O (again!), arithmetic using a stack.

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