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Ch01 - Min-Shiang Hwang
Ch01 - Min-Shiang Hwang

... Usually sharing storage via a storage-area network (SAN) ...
Managing Operating System Deployment
Managing Operating System Deployment

... automated build configuration • Reusable task sequence • Changes often require • Task sequence can be revalidation of entire build modified • Effort involved in building packages such as the operating system install package • Does not need to create • Depends on the Manual a task sequence administra ...
System Virtualization 1
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... and details of System Virtualization ...
Processes and Threads
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... resources since each virtual machine is isolated from all other virtual machines. This isolation, however, permits no direct sharing of resources.  A virtual-machine system is a perfect vehicle for operating-systems ...
lecture6
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... The acronym DOS was not new even then. It had originally been used by IBM in the 1960sin the name of an operating system (i.e., DOS/360) for its System/360 computer. At that time the use of disks for storing the operating system and data was considered cutting edge technology. Until its acquisition ...
Memory manager
Memory manager

... The device manager is responsible for the efficient use on input/output devices. The responsibilities of a device manager: Monitor every I/O device constantly to assure that the device is functioning properly.  Maintains a queue for each I/O device or one or more queues for similar I/O devices.  C ...
How do Users and Processes interact with the Operating System
How do Users and Processes interact with the Operating System

... Modular Kernel Most modern operating systems implement kernel modules Uses object-oriented–like approach Each core component is separate Each talks to the others over known interfaces Each is loadable as needed within the kernel, so you could download a new device driver for your OS and load it at r ...
Chorusamoeba
Chorusamoeba

... Use it for parallel programming-The large number of processor pool make it possible to carry out processes in parallel Use it in embedded industrial application as shown in the diagram ...
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Kernel designs explained

... individual bags to one another with strings (the IPC). The total weight of the end result will be that of the original beef, plus that of the plastic bags and string. Therefore, while a microkernel may appear simple on a very local level, at a global level it will be much more complex than a similar ...
Computer Science - Rainhill High School
Computer Science - Rainhill High School

... Be able to describe examples of different operating systems Be able to identify positive and negative features of two or more operating systems Be able to compare the strengths and weaknesses of different operating systems, choosing which is most suitable for a given scenario ...
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... opening of each chapter. • All chapter objectives are listed in the beginning of each presentation. • You may customize the presentations to fit your class needs. • Some figures from the chapters are included. A complete set of images from the book can be found as part of the Instructor Resources. ...
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Operating System Architecture and Distributed

... – Micro-Kernel main advantages: • Extensibility and its ability to enforce modularity behind memory protection boundaries • A relative small kernel is more likely to free of bugs than one that is larger and complex. ...
9781439079201_PPT_ch14
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... • Issues appropriate responses ...
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Microkernels

... (Slides include materials from Modern Operating Systems, 3rd ed., by Andrew Tanenbaum and from Operating System Concepts, 7th ed., by Silbershatz, Galvin, & Gagne) ...
mryan_CA549_week1 - Redbrick
mryan_CA549_week1 - Redbrick

... values, keep track of the stack, keep track of whether runnable, and some other stuff. For a context switch, only the TCB needs to be involved. Process switching involves the whole PCB including the TCP. Some systems allow multiple threads and multiple TCBs per process. All of them share the resourc ...
Agenda - Seneca - School of Information & Communications
Agenda - Seneca - School of Information & Communications

... operating system to run “space wars” game. Ken’s philosophy was to create an operating system with commands or “utilities” that would do one thing well (i.e. UNIX). Pipes could be used combine commands... ...
Abstract View of System Components
Abstract View of System Components

... ready to run  OS/360, developed by IBM to run on its System/360 ...
ppt
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...  A virtual machine takes the layered approach to its logical ...
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...  A virtual machine takes the layered approach to its logical ...
Ch 1
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... I/O completion  Wait instruction idles the CPU until the next interrupt  Wait loop (contention for memory access)  At most one I/O request is outstanding at a time, no simultaneous I/O processing  After I/O starts, control returns to user program without waiting for I/O completion  System call ...
Chapter 1: Introduction
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... „ Timesharing (multitasking) is logical extension in which CPU switches jobs so frequently that users can interact with each job while it is running, creating interactive computing z ...
Threads, SMP, and Microkernels
Threads, SMP, and Microkernels

... Benefits of Threads • Takes less time to create a new thread than a process • Less time to terminate a thread than a process • Less time to switch between two threads within the same process • Since threads within the same process share memory and files, they can communicate with each other without ...
What is an Operating System?
What is an Operating System?

... Memory management of I/O including buffering (storing data temporarily while it is being transferred), caching (storing parts of data in faster storage for performance), spooling (the overlapping of output of one job with input of other jobs) ...
Silberschatz/7e Lecture Notes
Silberschatz/7e Lecture Notes

... I/O completion  Wait instruction idles the CPU until the next interrupt  Wait loop (contention for memory access)  At most one I/O request is outstanding at a time, no simultaneous I/O processing  After I/O starts, control returns to user program without waiting for I/O completion  System call ...
ch2
ch2

... directly to main memory without CPU intervention  Only one interrupt is generated per block, rather than the one ...
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Copland (operating system)

Copland was a project at Apple Computer to create an updated version of the Macintosh operating system. It was to have introduced protected memory, preemptive multitasking and a number of new underlying operating system features, yet still be compatible with existing Mac software. A follow-on known as Gershwin would add multithreading and other advanced features.Development began in 1994 and was underway in earnest by 1995, when the system started to be referred to as System 8, and later, Mac OS 8. As the project gathered momentum, a furious round of empire building began. New features began to be added more rapidly than they could be completed, including most of the items originally slated for Gershwin, along with a wide variety of otherwise unrelated projects from within the company. The completion date continued to slip into the future, and several key dates passed with no sign of a release.In 1996, Apple's newest CEO, Gil Amelio, poached Ellen Hancock from National Semiconductor and put her in charge of engineering in an effort to try to get development back on track. She decided it was best to cancel the project outright and try to find a suitable third-party system to replace it. Development officially ended in August 1996, and after a short search they announced that Apple was buying NeXT in order to use their NeXTSTEP operating system as the basis of a new Mac OS.Hancock also suggested that Apple should work on improving the existing System 7 while the new system matured. This was released as Mac OS 8 in 1997, and was followed by Mac OS 9 in 1999. The new operating system based on NeXTSTEP shipped in 2001 as Mac OS X.In 2008, PCWorld magazine named Copland to a list of the biggest project failures in IT history.
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