open source operating system meaning

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

... University Pittsburgh, PA 15213 Appeared in Proceedings of the 11th Operating Systems Principles, November, 1987 Abstract Mach 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]...

Ngày tải lên: 12/09/2012, 15:05

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Tổng quan về Operating System

Tổng quan về Operating System

... là hệ điều hành sau này. 1.23 Một 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...

Ngày tải lên: 18/03/2013, 16:48

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Operating system

Operating system

... Warm up A. Look at the diagram What is the function of the operating system? The function of operating system is to control a computer, manage the function of the computer, and...

Ngày tải lên: 03/08/2013, 01:26

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Open Source Firewalls

Open Source Firewalls

... space ã 8MB RAM OpenBSD and Ipf Another free operating system is rapidly becoming the security standard against which other operating systems are being compared (and unfavorably at that). OpenBSD was ... Drawbridge Linux isn't the only free operating system out there—another free Unix operating system shares its tradition of software freely distributed with source code. It is called FreeBSD, and ... installing OpenBSD with ipf on the Internet; go to− − http://www.openbsd.org/ or just search on OpenBSD and ipf from any search engine. Cost and Support You can download OpenBSD from http://www.openbsd.org/...

Ngày tải lên: 29/09/2013, 13:20

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Programming the Be Operating System-Chapter 9: Messages and Threads

Programming the Be Operating System-Chapter 9: Messages and Threads

... called once for each already open window. You may be surprised to see the new window open before the last of the already opened windows is moved. With sev- eral windows open, a number of messages ... dealt mostly with system messages—messages generated and dispatched by the system. The Message Protocols appendix of the Be Book defines all the system messages. In short, system messages fall ... application flags field resource is set to multiple launch. Chapter 2 discusses this resource and how to set it. In short, you double-click on the project’s resource file to open it, then click the...

Ngày tải lên: 17/10/2013, 19:15

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Creating an Open Source SAN

Creating an Open Source SAN

... activate all the resources in the resource group. Your open source SAN is now fully operational! Backing Up the Cluster Configuration Now that you have an operational open source SAN, it is a ... OPEN SOURCE SAN 163 Preparing Your Open Source SAN To prepare your open source SAN, you need to make sure that you have everything necessary to set up the open source SAN. Specifically, you need ... cluster resources. Such a situation may lead to severe corruption on the DRBD and must be avoided at all times. CHAPTER 7 N CREATING AN OPEN SOURCE SAN 194 Heartbeat Beyond the Open Source...

Ngày tải lên: 19/10/2013, 02:20

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PHẦN 2: HỆ ĐIỀU HÀNH (OPERATING SYSTEM)

PHẦN 2: HỆ ĐIỀU HÀNH (OPERATING SYSTEM)

... 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 ... 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 ... 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...

Ngày tải lên: 19/10/2013, 18:15

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Programming the Be Operating System-Chapter 10: Files

Programming the Be Operating System-Chapter 10: Files

... Using Standard Open and Save Panels 361 Using Standard Open and Save Panels An operating system with a graphical user interface typically provides standard- ized means for opening and saving ... can be used to open an existing file or to create and open a new file. Here we need to create a new file. Passing the directory, filename, and an open mode does the trick. The open mode value ... Standard Open and Save Panels 365 The window class The window’s one menu now holds an Open item and a Save As item, so two message constants are necessary: #define MENU_FILE _OPEN_ MSG &apos ;opEN& apos; #define...

Ngày tải lên: 20/10/2013, 10:15

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Operating System Structures Cấu trúc Hệ điều hành

Operating System Structures Cấu trúc Hệ điều hành

... some systems store the operating system in firmware, and others on disk? Tại sao một số hệ thống lưu trữ hệ điều hành trên firmware, còn một số khác thì lưu trên đĩa? 2.13 How could a system ... người dùng. 2.10 What is the purpose of system calls? Mục đích của system call là gì? 2.11 What are the main advantages of the microkernel approach to system design? Lợi ích chính của phương ... bất lợi của việc sử dụng phương pháp phân tầng là gì? 2.9 List five services provided by an operating system. Explain how each provides convenience to the users. Explain also in which cases it...

Ngày tải lên: 28/10/2013, 09:15

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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

... 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 ... devices. The operating system enables applications to create and open files, transfer data between devices, and perform such file- management tasks as renaming and deleting. The operating system...

Ngày tải lên: 09/12/2013, 17:15

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Tài liệu A+operating system technologies doc

Tài liệu A+operating system technologies doc

... hardware is compatible with the new operating system, and that the hardware sources (including memory) in your system is sufficient for the new operating system. QUESTION NO 25 Where would ... Control panel, system, performance, graphics. B. Control panel, system, display settings, graphics. C. Control panel, system, device manager, properties, graphics. D. Control panel, system, hardware ... - 18 - QUESTION NO 43 How can you get a point out of the system configuration on a Windows 9x operating system? A. From the system monitor, click the print button. B. From the device...

Ngày tải lên: 11/12/2013, 14:15

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Tài liệu CompTIA A+ Operating System Technologies docx

Tài liệu CompTIA A+ Operating System Technologies docx

... (re)creating file systems ã [drive letter] /S makes the drive bootable (system) FDISK – For (re)creating partitions (see below) Cramsession : CompTIA A+ Operating System Technologies ... Computer System Interface settings for SCSI controllers, tape drives (if you have a SCSI host adapter) ã Services - starts, stops and pauses various services ã System - system startup settings, system ... A+ Operating System Technologies TM â 2000 All Rights Reserved BrainBuzz.com 26 ã Defrag defragments a hard drive ã System Monitor is a Windows utility that tracks system...

Ngày tải lên: 11/12/2013, 15:15

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Tài liệu THE OPERATING SYSTEM MACHINE LEVEL-6 docx

Tài liệu THE OPERATING SYSTEM MACHINE LEVEL-6 docx

... hardware) Context Valid Physical page Virtual page tag Flags (b) (c) Format is entirely defined by the operating system Translation table (Operating system) TSB (MMU + sofware) Context Entry 0 is shared by all virtual pages ending ... files close(infd); close(outfd); Figure 6-36. A program fragment for copying a file using the UNIX system calls. This fragment is in C because Java hides the low-level system calls and we are trying to expose them.  API ... process Children of A Grandchildren of A A A A A A A Figure 6-43. A process tree in UNIX . 6 THE OPERATING SYSTEM MACHINE LEVEL 1 (b) Time Process 3 Process 2 Process 1 Process 3 Process 2 Process...

Ngày tải lên: 12/12/2013, 09:15

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Tài liệu Voice over IP Open-Source Platforms and the Session Initiation Protocol doc

Tài liệu Voice over IP Open-Source Platforms and the Session Initiation Protocol doc

... controllers, graph- ics cards, network cards, and sound cards DOS (disk operating system) : a family of closely related operating systems (COS) that ran on IBM PC-type hardware. DNA (digital network ... translates (converts protocol) from one operating system environment to another Gateway routers: used to implement exterior protocols and interconnect autonomous systems Gbps (gigabits per second; ... connection capable of transferring data at 51.85 Mbps Operating environment: how the OS controls the hardware and application programs OS (operating system) : interface between the application (word...

Ngày tải lên: 21/12/2013, 04:18

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Tài liệu Activity 9.1: Identify Operating System Requirements pdf

Tài liệu Activity 9.1: Identify Operating System Requirements pdf

... 9.1: Identify Operating System Requirements In this activity, you will first identify the optimal operating system to use in a given situation. Next, you will analyze the operating system selection ... Objectives After completing this activity, you will be able to: ! Identify the appropriate operating system for a given set of requirements and constraints. Before You Begin This activity ... complete this activity: 15 minutes followed by a 10 minute discussion. Activity 9.1: Identify Operating System Requirements 63 Exercise 2: Analyzing Technology Selection (5 minutes) ! Analyze...

Ngày tải lên: 21/12/2013, 06:16

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