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operating system principles by galvin ppt

Tài liệu Programming the Be Operating System-Chapter 5: Drawing ppt

Tài liệu Programming the Be Operating System-Chapter 5: Drawing ppt

Hệ điều hành

... 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 ... MouseDown() routine for the MyDrawView class is as easy ascomparing the cursor location (supplied by the system when it automaticallyinvokes MouseDown()) to the area of the region. The BRegion member ... view.Upon declaration, the boundaries of a BRect object can be set by specifying val-ues for each of the four data members or by listing two points—one of whichspecifies the rectangle’s top left...
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Tài liệu Programming the Be Operating System-Chapter 8: Text ppt

Tài liệu Programming the Be Operating System-Chapter 8: Text ppt

Hệ điều hành

... timethat global font pointer is used by your application.Using a global system fontYou’ve already seen how to specify one of the global fonts as the font to be used by a particular view: just call ... 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 ... dis-plays a resizable window bordered by a vertical scrollbar and possibly a horizon-tal scrollbar. Figure 8-17 shows such a window—the window displayed by theScrollViewWindow project.Figure...
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Tài liệu Microsoft® Windows® 2000 Network and Operating System Essentials ppt

Tài liệu Microsoft® Windows® 2000 Network and Operating System Essentials ppt

Hệ điều hành

... 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 ... „#Memory management The operating system allocates memory to each application, without affecting the memory used by other applications. „#Data management The operating system manages files stored...
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Tài liệu Lab 6.2.7a Managing Switch Operating System Files pptx

Tài liệu Lab 6.2.7a Managing Switch Operating System Files pptx

Quản trị mạng

... !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! [OK - 1674921 bytes] 1674921 bytes copied in 51.732 secs (32841 bytes/sec) ALSwitch# d. The switch may prompt for an overwrite flash. ... 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 • Create and verify a basic switch configuration....
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Tài liệu Programming the Be Operating System-Chapter 1: BeOS Programming Overview ppt

Tài liệu Programming the Be Operating System-Chapter 1: BeOS Programming Overview ppt

Hệ điều hành

... 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 ... window) is taken care of by the operating system. You’llbe even more pleased to find that for some system messages, even the window’sresponse to the message is handled by the BeOS. For instance, ... and moving of windows is handled by the system, not by the SimpleApp code.This simple demonstration emphasizes the power of the BeOS system software—itis the system software code (rather than...
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Tài liệu Programming the Be Operating System-Chapter 6: Controls and Messages ppt

Tài liệu Programming the Be Operating System-Chapter 6: Controls and Messages ppt

Hệ điều hành

... 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 isdetermined by the code you include ... theBTextControl constructor, and is then edited by the user. The contents of theeditable field can also be set at any time by your program by invoking theBTextControl member function SetText(). ... a control, the system responds by sending a message tothe window that holds the control. This message indicates exactly which controlhas been clicked. The message is received by the window’s...
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Tài liệu Operating System Basics pptx

Tài liệu Operating System Basics pptx

Tài liệu khác

... interface standards are EIDE (Enhanced Integrated Drive Electronics) and SCSI (Small Computer System Interface).•EIDE has evolved over the years and has several variants, all of which have ... the time required for data to travel from one device to another.•If a device transfers 45,000 bytes per second, its data-transfer rate is 45 KBps.•Hard disks offer the fastest data-transfer...
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GNU/Linux Basic operating system ppt

GNU/Linux Basic operating system ppt

Kỹ thuật lập trình

... 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 ... AT&T’sUNIX to help teach his pupils to design operating systems. His idea was towrite an operating system that could be studied and modified by anyone whowished to do so. In 1987, he got down ... following the command,preceded by a space, and of-ten by a hyphen. For example,if the command is list, wecould add a parameter such aslist all.Currently, most operating systems in use are multi-user...
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Báo cáo khoa học:

Báo cáo khoa học: "A Pattern-based Machine Translation System Extended by Example-based Processing" ppt

Báo cáo khoa học

... and human-like MT system thanks to the easy addition of translation pattern. 6 Conclusion In this paper, we have described a pattern-based MT system called PalmTree. This system can break ... "A Similarity-Driven Transfer System, " Proc. of the 14th COLING, Vol. 2, pp. 770-776, 1992. 1373 A Pattern-based Machine Translation System Extended by Example-based Processing Hideo ... translation patterns. This is done by us- ing chart-type CFG-parser. The target structure is constructed by the synchronous derivation which generates a target structure by combining target sides...
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The Duality of Memory and Communication in the Implementation of a Multiprocessor Operating System

The Duality of Memory and Communication in the Implementation of a Multiprocessor Operating System

Hệ điều hành

... UniversityPittsburgh, PA 15213Appeared in Proceedings of the 11th Operating Systems Principles, November, 1987AbstractMach is a multiprocessor operating system being implemented at Carnegie-Mellon University. ... 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] ... Proceedings of the 8th Symposium on Operating System Principles, pages 64-75. December, 1981.[16] Rashid, R.F.From RIG to Accent to Mach: The Evolution of a Network Operating System. In Proceedings of...
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