... System Calls 622.4 Types of System Calls 662.5 System Programs 742.6 Operating- System Design andImplementation 752.7 Operating- System Structure 782.8 Operating- System Debugging 862.9 Operating- System ... multiprogramming system. 1.4 Operating- System StructureNow that we have discussed basic computer -system organization and archi-tecture, we are ready to talk about operating systems. An operating system provides ... 1 Introduction1.1 What Operating Systems Do 41.2 Computer -System Organization 71.3 Computer -System Architecture 121.4 Operating- System Structure 191.5 Operating- System Operations 211.6...
... Mainframe Systems■ Desktop Systems■ Multiprocessor Systems■ Distributed Systems■ Clustered System ■ Real -Time Systems■ Handheld Systems■ Computing Environments Silberschatz, Galvin and Gagne ... the Apple Macintosh Operating System. v Silberschatz, Galvin and Gagne 20021.19 Operating System Concepts Real-Time Systems■ Often used as a control device in a dedicated applicationsuch ... Output Silberschatz, Galvin and Gagne 20021.23 Operating System Concepts Computing Environments■ Traditional computing■ Web-Based Computing■ Embedded Computing Silberschatz, Galvin and Gagne...
... hiện được cấp k thể hiện của loại tài nguyên Rj.Need: một ma trận n x m; Need[ i, j ] = k, Pi có thể cần thêm k thể hiện của Rj. Need[ i, j ] = Max[ i,j ] – Allocation [ i, j ]. 1) ... sau:Available := Available – Requesti; Allocationi := Allocationi + Requesti; Needi := Needi – Requesti;Nếu kết quả trạng thái cấp phát tài nguyên là an toàn, thì giao dịch ... vector yêu cầu cho Pi. Nếu Requesti[j] = k, Pi muốn k thể hiện của Rj. 1) Nếu Requesti ≤ Needi, di chuyển tới bước 2. Ngược lại, phát sinh một điều kiện lỗi vì quá trình vượt quá yêu cầu...
... limited sections of the system rather than touching all sections of the operating system. Information is kept only where it is needed and is accessible only within a definedand restricted area, ... (security) system? Answer: By establishing a set of privileged instructions that can be executed only whenin the monitor mode, the operatingsystem is assured of controlling the entire system at ... inspected to ensure that data have notbeen corrupted in transit. All data on media must be checked to be sure they have notchanged since they were written to the media. At the software level, media...
... C.40 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts 7thEdition, Feb 11, 2005Mirror Set on Two DrivesMirror Set on Two Drives C.12 Silberschatz, Galvin and Gagne â2005 Operating ... protocols as drivers that can be loaded and unloaded from the system dynamically C.47 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts 7thEdition, Feb 11, 2005Networking Networking ... restored to a consistent state by processing the log records C.11 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts 7thEdition, Feb 11, 2005Kernel Kernel ——SchedulingScheduling...
... 2.29 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts 7thEdition, Jan 14, 2005Layered Operating System Layered Operating System 2.24 Silberschatz, Galvin and Gagne â2005 Operating ... Chapter 2 2.4 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts 7thEdition, Jan 14, 2005 Operating System Services Operating System Services One set of operating- system services ... â2005 Operating SystemConcepts 7thEdition, Jan 14, 2005API API –– System Call System Call ––OS RelationshipOS Relationship 2.42 Silberschatz, Galvin and Gagne â2005 Operating System Concepts...
... â2005 Operating SystemConcepts - 7thEdition, Feb 7, 2006Addition of Medium Term SchedulingAddition of Medium Term Scheduling 3.16 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts ... 3.4 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts - 7thEdition, Feb 7, 2006Process in MemoryProcess in Memory 3.39 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts ... 3.12 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts - 7thEdition, Feb 7, 2006Representation of Process SchedulingRepresentation of Process Scheduling 3.42 Silberschatz, Galvin...
... 4.9 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts 7thedition, Jan 23, 2005ManyMany--toto--One ModelOne Model 4.15 Silberschatz, Galvin and Gagne â2005 Operating System ... (process) 4.3 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts 7thedition, Jan 23, 2005Single and Multithreaded ProcessesSingle and Multithreaded Processes 4.14 Silberschatz, Galvin ... thread immediatelyz Deferred cancellation allows the target thread to periodically check if it should be cancelled 4.26 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts 7thedition,...
... 6.32 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts 7thEdition, Feb 8, 2005Schematic view of a MonitorSchematic view of a Monitor 6.39 Silberschatz, Galvin and Gagne â2005 Operating ... full initialized to the value 0 Semaphore empty initialized to the value N. 6.24 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts 7thEdition, Feb 8, 2005Bounded Buffer Problem ... isincremented by the producer after it produces a new buffer and is decremented by the consumer after it consumes a buffer. 6.37 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts 7thEdition,...
... and Gagne â2005 Operating SystemConcepts - 7thEdition, Feb 14, 2005Safe, Unsafe , Deadlock State Safe, Unsafe , Deadlock State 7.35 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts ... more instances of resource type. Rj. 7.6 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts - 7thEdition, Feb 14, 2005 System Model System Model Resource types R1, R2, . ... and a set of edges E. 7.4 Silberschatz, Galvin and Gagne â2005 Operating SystemConcepts - 7thEdition, Feb 14, 2005The Deadlock ProblemThe Deadlock Problem A set of blocked processes each...