linux operating system architecture ppt

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 ... 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...

Tài liệu Lab 6.2.7a Managing Switch Operating System Files pptx

Danh mục: Quản trị mạng

... 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. ... 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...

Tài liệu Operating System Basics pptx

Danh mục: 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...

UNIX LINUX Operating System

Danh mục: Hệ điều hành

... facilities Distributions Linux •Distribution = A collection of all or some programs altogether around a Linux kernel which allows to install a collaborative system, operating perfectly.–Include ... OS.– -p, processor: processor type#uname –a Linux linuxsrv.linuxvn.net 2.2.14-5.0#1 Tue Mar 7 21:07:39 EST 2000 i386 unknown Free Software, Linux & Open Source•1984 : Richard Stallman, ... Live CD Linux •Distro Linux on one CD–GNU /Linux OS. Plus with necessary softwares–Not affect the current status of PC, HD not required!•Some typical distro–Knoppix–DemoLinux–Mandows–FreeSBIE...

Operating System (full) pptx

Danh mục: Hệ điều hành

GNU/Linux Basic operating system ppt

Danh mục: 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 ... 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...

Tài liệu Unix and Linux Backups for System Administrators pptx

Danh mục: An ninh - Bảo mật

... options are supported on all operating systems. For instance, configuring a DLT jukebox on a Solaris 5.2 system was an exercise in futility, but the same task on a 5.5 system was trivial.A second ... wait for a crisis to convince you of its value.1Unix and Linux Backups – SANS GIAC LevelOne© 2000, 20011Unix and Linux Backupsfor System AdministratorsBy Robert BladerHello, my name is ... You’re tasked with managing a system. If it’s new, start with hardware - connect cables, attach peripherals, etc. Next, you install andconfigure the operating system, the latest security patches,...

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

Danh mục: 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 ... 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...

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

Danh mục: 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 ... 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){...

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

Danh mục: Hệ điều hành

... 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...

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

Danh mục: Hệ điều hành

... 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;...

Learning the Unix Operating System pptx

Danh mục: Kỹ thuật lập trình

... | 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...

Ultra Wideband Communications Novel Trends System, Architecture and Implementation Part 13 pptx

Danh mục: Kĩ thuật Viễn thông

... support systematic (63, 51) BCH code [1]. From the construction of packet for our proposed system in section 3, candidate codes must have the following features:  The code is a half-rate and systematic. ... proposed system considering PHY and MAC is evaluated by the Monte-Carlo simulations. Then, we evaluate the performance of our Ultra Wideband Communications: Novel Trends – System, Architecture ... one message using S-ALOHA algorithm (G=1.0) Ultra Wideband Communications: Novel Trends – System, Architecture and Implementation 304 In case of polling algorithm, the performance is not...

Operating System Concepts - Chapter 3: Processes ppt

Danh mục: Hệ điều hành

... terminate3.4Silberschatz, Galvin and Gagne ©2005 Operating System Concepts - 7thEdition, Feb 7, 2006Process in MemoryProcess in Memory3.39Silberschatz, Galvin and Gagne ©2005 Operating System Concepts - 7thEdition, ... Galvin and Gagne ©2005 Operating System Concepts - 7thEdition, Feb 7, 2006Process TerminationProcess Termination Process executes last statement and asks the operating system todelete it ... exiting Some operating system do not allow child to continue if its parent terminates– All children terminated - cascading termination3.3Silberschatz, Galvin and Gagne ©2005 Operating System Concepts...