operating system process concept ppt

Ngày tải lên: 08/08/2014, 21:21

Ngày tải lên: 08/08/2014, 21:21

Ngày tải lên: 08/08/2014, 21:22

Ngày tải lên: 08/08/2014, 21:22

Ngày tải lên: 12/08/2014, 22:21

Ngày tải lên: 12/08/2014, 22:21

... 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

... window. Multiprocessor Support An operating system that uses multithreading, designed so that threads can be sent to different processors, is said to use symmetric multiprocessing, or SMP. On an SMP system, ... a second processor. Contrasting with symmetric multiprocessing (SMP) is asymmetric multiprocessing, or AMP. A system that uses AMP sends a thread to one processor (deemed the master processor) ... parcels out subtasks to the other processor or processors (called the slave processor or pro- cessors). The BeOS can run on single-processor systems (such as single-processor Power Macintosh computers),...

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

... default: BWindow::MessageReceived(message); } } View Hierarchy and Controls Chapter 4 introduced the concept of the window view hierarchy—the organiza- tion of views within a window. In this chapter’s ... on the Beep One push button and a click on the picture button. Creating the picture button The process of creating a control can also be expressed in a number of steps. All of the following affect ... resulting object to the proper MyHelloWindow data member. You should be quite familiar with this process by now. To see the complete MyHelloWindow constructor listing, refer to MyHelloWindow.cpp. Handling...

Ngày tải lên: 26/01/2014, 07:20

... may not always fit within the confines of a view. Enter the scrollbar. The APIs for other operating systems that employ a graphical user interface include routines to work with scrollbars, but ... 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

... 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

... 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 ... the processes being executed on the terminal that we are on or from which the processes have been launched. ã -a: shows us the processes of all system terminals. ã -: shows us all the system processes. ... us to find quickly the process that is negatively affecting the system s perfor- mance. As we have seen, the system tells us about all possible aspects of the system s processes. In addition,...

Ngày tải lên: 08/03/2014, 23:20

... IOS - Internetwork Operating System l Responsible for managing the hardware and software resources: Ÿ Allocating memory Ÿ Managing processes Ÿ Security Ÿ Managing file systems l Many different ... Inside the Router Ÿ Routers are computers Ÿ Router CPU and Memory Ÿ Internetwork Operating System Ÿ Router Bootup Process Ÿ Router Ports and Interfaces Ÿ Routers and the Network Layer l Path Determination ... which needs to be sent to its IP process. 3. Host Y strips off the data link, Ethernet, frame and sends it to its IP process. Layer 3: IP Packet 4. Host Y’s IP process examines the Destination...

Ngày tải lên: 09/03/2014, 13:20

... file systems Improve system performance by configuring a cachefs file system. Monitor cachefs file system statistics and maintain logs of the cachefs file system. ● Use automount Configure the system ... Types of Hosts Host 1 Host 2 Client process Server process Client process 1 1-8 Solaris™ 8 Operating Environment System Administration I Copyright 2000 Sun Microsystems, Inc. All Rights Reserved. ... handle new or larger file systems to satisfy increased storage requirements on systems. ● Managing file systems Creating, mounting, and maintaining file systems to ensure access to system, application,...

Ngày tải lên: 15/03/2014, 19:20

... troubleshooting) process IDs (PIDs) : 6.1. Running a Command in the Background processes, background : 6. Multitasking cancelling : 6.3. Cancelling a Process checking on processes : 6.2. ... | 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...

Ngày tải lên: 18/03/2014, 00:20

... â2005 Operating System Concepts - 7 th Edition, Feb 7, 2006 Process Creation Process Creation  Parent process create children processes, which, in turn create other processes, forming a tree of processes  ... 2006 Process Concept Process Concept  An operating system executes a variety of programs: z Batch system – jobs z Time-shared systems – user programs or tasks  Textbook uses the terms job and process ... Galvin and Gagne â2005 Operating System Concepts - 7 th Edition, Feb 7, 2006 Process in Memory Process in Memory 3.39 Silberschatz, Galvin and Gagne â2005 Operating System Concepts - 7 th Edition,...

Ngày tải lên: 28/06/2014, 02:20

... Gagne â2005 Operating System Concepts 7 th Edition, Feb 8, 2005 Synchronization Hardware Synchronization Hardware  Many systems provide hardware support for critical section code  Uniprocessors ... semaphores z spin locks 6.47 Silberschatz, Galvin and Gagne â2005 Operating System Concepts 7 th Edition, Feb 8, 2005 System Model System Model  Assures that operations happen as a single logical ... 6.17 Silberschatz, Galvin and Gagne â2005 Operating System Concepts 7 th Edition, Feb 8, 2005 Semaphore Implementation Semaphore Implementation  Must guarantee that no two processes can execute wait ()...

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 ... 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, ... 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 7 th Edition,...

Ngày tải lên: 28/06/2014, 02:20