... a network is the networkoperating system. Just as a computer cannot operate without an operating system, a network of computers cannot operate without a networkoperating system. Every network ... the networkoperatingsystem s manufacturer, a desktop computer’s networking software can be added either to the computer’s own operating system or be integrated with it. Networkoperatingsystem ... features of the Windows 2000 operating systems and describe the different types of networks and networkoperating systems. Module 2, “Administration of a Windows 2000 Network, ” describes routine...
... 1Advanced Network and System AdministrationAccounts and Namespaces 13LDIFLDAP Interchange Format.Standard ... DirectoriesMake administration easier.Change data only once: people, accounts, hosts.Unify access to network resources.Single sign on.Single place for users to search (address book)Improve ... LDAP Authentication 12LDAP SchemasSchemas specify allowed objectClasses and attributes. 5 System Administration DirectoriesTypes of directory dataAccountsMail aliases and lists...
... multithreaded operatingsystem 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 operatingsystem ... 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...
... 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 operatingsystem 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){...
... 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()BHandlerversionmessagemessage...
... 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;...
... Proc. 8th Symposium on Operating Systems Principles, pages 127-136. ACM, December, 1981.[10] Jones, A.K.The Object Model: A Conceptual Tool for Structuring Systems. Operating Systems: An Advanced ... R.F. and Robertson, G.Accent: A Communication Oriented NetworkOperatingSystem Kernel.In Proceedings of the 8th Symposium on OperatingSystem Principles, pages 64-75. December, 1981.[16] Rashid, ... UniversityPittsburgh, PA 15213Appeared in Proceedings of the 11th Operating Systems Principles,November, 1987AbstractMach is a multiprocessor operatingsystem being implemented at Carnegie-Mellon University....
... 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...
... Warm upA. Look at the diagramWhat is the function of the operating system? The function of operatingsystem is to control a computer, manage the function of the computer, and...
... 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...
... thống tập tin (File System) . 4. Quản lý nhập xuất (I/O). 5. Quản lý thiết bị lưu trữ (Secondary-storage). 6. Quản lý mạng (Networking). 7. Hệ thống bảo vệ (Protection System) . 8. Hệ thông ... CPU P1 P2 P3 P4 P1 P2 P4 P1 0 4 8 11 15 19 23 24 - 1 - PHẦN 2: HỆ ĐIỀU HÀNH (OPERATING SYSTEM) Chương 1: Tổng quan Hệ điều hành 1 Câu hỏi Tóm tắt chức năng của hệ điều hành ... Không gian đ/c Bộ nhớ Bộ nhớ phụ Chương 4: Quản lý hệ thống tập tin (File system management). 41 Câu hỏi Tóm tắt tổ chức đĩa mềm 1.44 MB sử dụng FAT12 2 điểm Đáp án Tổ...