linux operating system ppt powerpoint
GNU/Linux Basic operating system ppt
... file system hierarchyAny operating system needs to save numerous files: from system configurationfiles, to log files or user files etc. In general, each operating system uses its ownfile system ... use. On GNU/ Linux systems, this system iscalled a quota.GNUFDL• PID_0014839319Basic GNU /Linux servers, groups etc. This account should not be used for working normally onthe system. We should ... have on the system appropriately, so that we can have morethan one operating system installed on the same disk, for instance. The dfcommand shows us, for each unit mounted on the system, the...
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UNIX LINUX Operating System
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Tài liệu Microsoft® Windows® 2000 Network and Operating System Essentials ppt
... 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 ... PowerPoint ®. „#Memory management The operating system allocates memory to each application, without affecting the memory used by other applications. „#Data management The operating system...
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Tài liệu Programming the Be Operating System-Chapter 1: BeOS Programming Overview ppt
... multithreaded operating system and a very efficient one. Whileprogrammers can explicitly create threads, much of the work of handling threadsis 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 eachprocessor, makes for a system with very high performance.Preemptive MultitaskingAn operating system...
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Tài liệu Programming the Be Operating System-Chapter 5: Drawing ppt
... threecolor 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);ShapesBe claims that the BeOS is an operating system for the graphics community. So it’shoped that the BeOS makes it easy for programmers ... user clicks the mouse in theMyDrawView view, MouseDown() makes the system aware of the fact that the viewneeds updating, and the system invokes Draw():void MyDrawView::MouseDown(BPoint point){...
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Tài liệu Programming the Be Operating System-Chapter 6: Controls and Messages ppt
... the affected view invoking the BView hook function MouseDown().Besides being the recipient of system messages, a window is also capable ofreceiving application-defined messages. This lets you ... window. When the user operates thecontrol (typically by clicking on it, as for a button), the system passes the applica-tion-defined message to the window. How the window handles the message ... BWindow::MessageReceived(BMessage* message){ switch(message->what) { // handle B_KEY_DOWN and scripting-related system messagesFigure 6-3. Message passed to parent class’s version of MessageReceived()messageApplicationserverMessageReceived()BWindow-derivedversionMessageReceived()BWindowversionMessageReceived()BHandlerversionmessagemessageCheckboxes...
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Tài liệu Programming the Be Operating System-Chapter 8: Text ppt
... may not always fit within the confines of aview. Enter the scrollbar. The APIs for other operating systems that employ agraphical user interface include routines to work with scrollbars, but ... setting a view’sfont to one of the global system fonts, but you can use SetFont() with anyBFont 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, yourapplication shouldn’t make any font-related assumptions. You can’t be sure everyuser has a non -system font your application uses;...
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Security On Linux System ppt
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The Duality of Memory and Communication in the Implementation of a Multiprocessor Operating System
... UniversityPittsburgh, PA 15213Appeared in Proceedings of the 11th Operating Systems Principles,November, 1987AbstractMach is a multiprocessor operating system being implemented at Carnegie-Mellon University. ... Collins and L.W. Loen. System/ 38 Machine Storage Management.IBM System/ 38 Technical Developments, IBM General Systems Division :63-66, 1978.[7] Gupta, A.Parallel Production Systems.PhD thesis, ... November, 1984.[9] Kahn, K.C. et al.iMAX: A Multiprocessor Operating System for an Object-Based Computer.In Proc. 8th Symposium on Operating Systems Principles, pages 127-136. ACM, December, 1981.[10]...
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Tổng quan về Operating System
... này là hệ điều hành sau này.1.23Một số khái niệm của hệ điều hành(tt) Sự phân lớp hệ thống (System Layering)–Mỗi người sử dụng khác nhau yêu cầu khai thác hệ điều hành ở những mức độ khác...
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Operating system
... Warm upA. Look at the diagramWhat is the function of the operating system? The function of operating system is to control a computer, manage the function of the computer, and ... text below and find1. MS - DOS2. Microsoft window3. Pocket PC4. Mac OS5. OS/2Wrap6. UNIX7. Linux 8. Solaries...
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Linux Gold-System Build
... address and a system name, and then you can connect the finished system to the network.for slice in 6 1 5 7 8 9 11do umount /dev/hda$slicedone245■ ■ ■CHAPTER 38 Linux Gold -System BuildBuilding ... /tmp/root/bootmount /dev/hda5 /tmp/root/usrif [ ! -d /tmp/root/usr/local ]248CHAPTER 38 ■ LINUX GOLD -SYSTEM BUILD system to make sure the script output and the gold partition table match while account-ing ... file systems were part of this build, but it would be trivial to modify the code to remove unnecessary ones or to add your own file systems to match your gold build.The last two file systems...
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Programming the Be Operating System-Chapter 9: Messages and Threads
... dealt mostly with system messages—messages generatedand dispatched by the system. The Message Protocols appendix of the Be Bookdefines all the system messages. In short, system messages fall ... BClipboard object that is used to access the systemwideclipboard.330 Chapter 9: Messages and ThreadsBClipboard classThe previous section described the system s application roster, the be_roster ... carry out the message’s action. That leads to the distinc-tion that a system message is usually handled by a hook function (some system- generated messages, such as the standard messages resulting...
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