OPERATING SYSTEM CONCEPTS SILBERSCHATZ SIXTH EDITION PDF

Chapter 19: Real-Time SystemsChapter 19: Real-Time Systems19.2Silberschatz, Galvin and Gagne ©2005Operating System Concepts – 7th Edition, Jan 1, 2005Chapter 19: Real-Time SystemsChapter 19: Real-Time Systems■System Characteristics■Features of Real-Time Systems■Imp[r]

Chapter 12: MassChapter 12: Mass--Storage SystemsStorage Systems12.2Silberschatz, Galvin and Gagne ©2005Operating System Concepts – 7thEdition, Jan 1, 2005Chapter 12: MassChapter 12: Mass--Storage SystemsStorage Systems Overview of Mass Storage Structure Disk Structure Disk A[r]

Device controller transfers blocks of data from buffer storage directly to main memory without CPU intervention.Only on interrupt is generated per block, rather than the one interrupt per byte.Silberschatz, Galvin and Gagne 20022.11Operating System ConceptsStorage StructureM[r]

access – and manipulate shared data concurrently. The final value of the shared data depends upon which process finishes last.To prevent race conditions, concurrent processes must be synchronized.Silberschatz, Galvin and Gagne 20027.11Operating System ConceptsThe Critical-Sect[r]

Chapter 14: ProtectionChapter 14: Protection14.2Silberschatz, Galvin and Gagne ©2005Operating System Concepts – 7thEdition, Apr 11, 2005Chapter 14: ProtectionChapter 14: Protection Goals of Protection  Principles of Protection Domain of Protection  Access Matrix  Implementa[r]

Chapter 3: ProcessesChapter 3: Processes3.2Silberschatz, Galvin and Gagne ©2005Operating System Concepts - 7thEdition, Feb 7, 2006Chapter 3: ProcessesChapter 3: Processes Process Concept Process Scheduling Operations on Processes Cooperating Processes Interprocess Communica[r]

Chapter 4: ThreadsChapter 4: Threads4.2Silberschatz, Galvin and Gagne ©2005Operating System Concepts – 7thedition, Jan 23, 2005Chapter 4: ThreadsChapter 4: Threads Overview Multithreading Models Threading Issues Pthreads Windows XP Threads Linux Threads Java Threads4.3Sil[r]

Chapter 20: Multimedia SystemsChapter 20: Multimedia Systems20.2Silberschatz, Galvin and Gagne ©2005Operating System Concepts – 7thEdition, Jan 2, 2005Chapter 20: Multimedia SystemsChapter 20: Multimedia Systems What is Multimedia Compression Techniques Requirements of Multim[r]

execute.■Solution ≡ Aging – as time progresses increase the priority of the process.Silberschatz, Galvin and Gagne 20026.18Operating System ConceptsRound Robin (RR)■Each process gets a small unit of CPU time (time quantum), usually 10-100 milliseconds. After this time has elaps[r]

The interrupt dispatcher in the kernel handles interrupts by calling either an interrupt service routine (such as in a device driver) or an internal kernel routine.The kernel uses spin locks that reside in global memory to achieve multiprocessor mutual exclusion.Silberschatz, Galvin and Gagn[r]

 Trojan Horsez Code segment that misuses its environmentz Exploits mechanisms for allowing programs written by users to beexecuted by other usersz Spyware, pop-up browser windows, covert channels Trap Doorz Specific user identifier or password that circumvents normal security proceduresz Could be[r]

another resource that cannot be immediately allocated to it, then all resources currently being held are released.z Preempted resources are added to the list of resources for which the process is waiting.z Process will be restarted only when it can regain its old resources, as well as the new ones t[r]

generally manipulate files and directories Status informationz Some ask the system for info - date, time, amount of available memory, disk space, number of usersz Others provide detailed performance, logging, and debugging informationz Typically, these programs format and print the output to[r]

Edition, Feb 6, 2005Process ManagementProcess Management UNIX process management separates the creation of processes and the running of a new program into two distinct operations.z The fork system call creates a new processz A new program is run after a call to execve Under UNIX, a p[r]

triển hệ thống có thể truy vấn dữ liệu thân thiện hơn. Và Microsoft Search Services cung cấp khả năng tìm kiếm rất mạnh, đặc biệt thích hợp cho phát triển ứng dụng Web. Hỗ trợ kiến trúc Client/Server(Supports Client/Server model): Ứng dụng có thể chạy trên Client, truy cập dữ liệu được lưu trữ trên[r]

recovery after a power failure■Kernel is object-oriented, uses two sets of objects.✦dispatcher objects control dispatching and synchronization (events, mutants, mutexes, semaphores, threads and timers). ✦control objects (asynchronous procedure calls, interrupts, power notify, power status, process a[r]

Chapter 13: I/O SystemsChapter 13: I/O Systems13.2Silberschatz, Galvin and Gagne ©2005Operating System Concepts – 7thEdition, Jan 2, 2005Chapter 13: I/O SystemsChapter 13: I/O Systems I/O Hardware Application I/O Interface Kernel I/O Subsystem Transforming I/O Requests to Ha[r]

Disk StructureDisk Structure■Disk drives are addressed as large 1-dimensional arrays of logical blocks, where the logical block is the smallest unit of transfer. ■The 1-dimensional array of logical blocks is mapped into the sectors of the disk sequentially.●Sector 0 is the first sector of the first[r]

Hydra●Fixed set of access rights known to and interpreted by the system.●Interpretation of user-defined rights performed solely by user's program; system provides access protection for use of these rights.■Cambridge CAP System ●Data capability - provides standard read, write, ex[r]

Transfer rate is rate at which data flow between drive and computer●Positioning time (random-access time) is time to move disk arm to desired cylinder (seek time) and time for desired sector to rotate under the disk head (rotational latency)●Head crash results from disk head making contact with the[r]