critical section problem operating system ppt

... file system hierarchy Any operating system needs to save numerous files: from system configuration files, to log files or user files etc. In general, each operating system uses its own file system ... “Device” section 189 11.3.2. "Monitor" section 189 11.3.3. "Screen section& quot; 190 11.3.4. ''InputDevice'' section 190 11.3.5. "ServerLayout" section ... dealing with on our system are highly critical and we cannot, in any circumstances, allow ourselves to lose them, we can also configure the operating system not to use the disk cache system. At all events,...

Ngày tải lên: 08/03/2014, 23:20

... | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y Index: O operating system, definition of : The UNIX Operating System options, command : 1.2. Syntax of UNIX Command Lines output ... Documentation DOS, accessing with UNIX : 4.4.6. Files on Other Operating Systems MTOOLS utilities for : 4.4.6. Files on Other Operating Systems dot (.) . directory shortcut : 3.1.8.1. ls in ... ask another UNIX user or your system administrator.) 1.1.1.1 Connecting from another operating system If you're using a personal computer to connect to the UNIX system, you'll probably...

Ngày tải lên: 18/03/2014, 00:20

... network operating system. Just as a computer cannot operate without an operating system, a network of computers cannot operate without a network operating system. Every network operating system ... network operating system s manufacturer, a desktop computer’s networking software can be added either to the computer’s own operating system or be integrated with it. Network operating system ... mathematical calculation. A network operating system must also support multiple processors, clusters of disk drives, and data security features. Finally, a network operating system must be reliable and...

Ngày tải lên: 09/12/2013, 17:15

... Accept upgrade transfer from other hosts Enabled Actions [U] System XMODEM upgrade [D] Download test subsystem (XMODEM) [T] System TFTP upgrade [X] Exit to Main Menu Enter Selection: ... and Intermediate Routing v 3.0 - Lab 6.2.7a Copyright  2003, Cisco Systems, Inc. Lab 6.2.7a Managing Switch Operating System Files Objective ã Create and verify a basic switch configuration. ... An example of the Firmware Configuration Menu is: Catalyst 1900 - Firmware Configuration System Information FLASH: 1024K bytes V8.01.00 : Enterprise Edition Upgrade status: No upgrade...

Ngày tải lên: 24/01/2014, 19:20

... multithreaded operating system and a very efficient one. While programmers can explicitly create threads, much of the work of handling threads is taken care of behind the scenes by the operating system ... upgrade its operating system, it must take into account the millions of users that have a large invest- ment in software designed to run on the existing version of its operating system. So no ... with the system s ability to assign threads to processors based on the current load on each processor, makes for a system with very high performance. Preemptive Multitasking An operating system...

Ngày tải lên: 26/01/2014, 07:20

... three color components), and because it is a color system with which many program- mers and end users are familiar with (it’s common to several operating systems). The BeOS defines rgb_color as a struct ... StrokeRect(rect8); SetPenSize(12.0); StrokeRect(rect12); Shapes Be claims that the BeOS is an operating system for the graphics community. So it’s hoped that the BeOS makes it easy for programmers ... user clicks the mouse in the MyDrawView view, MouseDown() makes the system aware of the fact that the view needs updating, and the system invokes Draw(): void MyDrawView::MouseDown(BPoint point) { ...

Ngày tải lên: 26/01/2014, 07:20

... the CHECKBOX_SET_BEEP_MSG case section performs no action—a message of this type is now essentially ignored. The pro- gram would run the same even if this case section was removed, but I’ve left ... class for the picture button This chapter’s TwoButtons example project (presented in the “Buttons” section) provided a plan for adding a control, and support of that control, to a window. Here’s ... Files, discusses bit- maps. Picture buttons are actually more versatile than described in this section. Here the picture button is treated as a one-state device—just as a standard push button...

Ngày tải lên: 26/01/2014, 07:20

... next section illustrates. Your program shouldn’t force the user to have a particular non- system font on his or her machine, but it can give the user the option of displaying text in a non -system ... setting a view’s font to one of the global system fonts, but you can use SetFont() with any BFont object. Here, one view is having its font set to the global system font be_ plain_font, while another ... machine may have more than the three system fonts installed, your application shouldn’t make any font-related assumptions. You can’t be sure every user has a non -system font your application uses;...

Ngày tải lên: 26/01/2014, 07:20

... it is measured. ã Identify two drive interface standards. This lesson includes the following sections: ã Average Access Time ã File Compression ã Data-Transfer Rate ã Drive-Interface ... interface standards are EIDE (Enhanced Integrated Drive Electronics) and SCSI (Small Computer System Interface). ã EIDE has evolved over the years and has several variants, all of which have...

Ngày tải lên: 16/02/2014, 08:20

... s 3/2 Γ  5/2  , 0 ≤ s ≤ 1 4.4 2 Boundary Value Problems study on systems of fractional differential equations, not much has been done for boundary value problems for systems of fractional differential equations ... Yang and W. Ge, “Positive solutions for boundary value problems of N-dimension nonlinear fractional differential system, ” Boundary Value Problems, vol. 2008, Article ID 437453, 15 pages, 2008. 21 ...   u 1 , ,u N  T ∈ E. 3.1 In this section, we always assume that f f 1 , ,f N T C0, 1 ì N , N . Lemma 3.1. System 1.1 is equivalent to the following system of integral equations: u i  t    1 0 G i  t,...

Ngày tải lên: 21/06/2014, 05:20

... 3.24 Silberschatz, Galvin and Gagne â2005 Operating System Concepts - 7 th Edition, Feb 7, 2006 Producer Producer - - Consumer Problem Consumer Problem  Paradigm for cooperating processes, producer process ... Galvin and Gagne â2005 Operating System Concepts - 7 th Edition, Feb 7, 2006 Process Termination Process Termination  Process executes last statement and asks the operating system to delete it ... exiting  Some operating system do not allow child to continue if its parent terminates – All children terminated - cascading termination 3.3 Silberschatz, Galvin and Gagne â2005 Operating System Concepts...

Ngày tải lên: 28/06/2014, 02:20

... Chapter 13: I/O Systems Chapter 13: I/O Systems 13.21 Silberschatz, Galvin and Gagne â2005 Operating System Concepts 7 th Edition, Jan 2, 2005 Kernel I/O Subsystem Kernel I/O Subsystem  Scheduling z ... Galvin and Gagne â2005 Operating System Concepts 7 th Edition, Jan 2, 2005 The STREAMS Structure The STREAMS Structure 13.31 Silberschatz, Galvin and Gagne â2005 Operating System Concepts 7 th Edition, ... and Gagne â2005 Operating System Concepts 7 th Edition, Jan 2, 2005 Two I/O Methods Two I/O Methods Synchronous Asynchronous 13.6 Silberschatz, Galvin and Gagne â2005 Operating System Concepts...

Ngày tải lên: 28/06/2014, 02:20

... Gagne â2005 Operating System Concepts 7 th Edition, Jan 1, 2005 Implementing Real Implementing Real - - Time Time Operating Systems Operating Systems  In general, real-time operating systems ... Gagne â2005 Operating System Concepts 7 th Edition, Jan 1, 2005 Chapter 19: Real Chapter 19: Real - - Time Systems Time Systems  System Characteristics  Features of Real-Time Systems  Implementing ... 19.6 Silberschatz, Galvin and Gagne â2005 Operating System Concepts 7 th Edition, Jan 1, 2005 System System - - on on - - a a - - Chip Chip  Many real-time systems are designed using system- on-a-chip (SOC)...

Ngày tải lên: 28/06/2014, 02:20

... number of programs used at the same time  The operating system of a single user  Multi-tasking operating system a user  Multi-tasking operating system more user www.themegallery.com Introduction  Today, ... processing system (Hệ thống xử lý theo lô)  Batch processing system has chapters (Hệ thống xử lý theo lô đa chương)  Time-sharing system  Parallel Systems (Hệ thống song song)  Distributed Systems ... web browsers and text editors are now include as standard on most operating system releases Primary function of the operating system  Management of shared resources  A computer simulator expansion www.themegallery.com ...

Ngày tải lên: 03/07/2014, 07:20

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Ngày tải lên: 08/08/2014, 21:21

Ngày tải lên: 08/08/2014, 21:21

Ngày tải lên: 08/08/2014, 21:22