Operating Systems - Bina – Advanced Software Services
... associated data execution context (PC, registers & status) ...
... associated data execution context (PC, registers & status) ...
CS9222 Advanced Operating Systems Mr.N.M. BalaMurugan
... State – Necessary and Sufficient conditions for a Deadlock – Systems with Single-Unit Requests, Consumable Resources, Reusable Resources. Objective: To teach the basic concepts, phases and types of various operation systems along with several representations, specification and Phase management. ...
... State – Necessary and Sufficient conditions for a Deadlock – Systems with Single-Unit Requests, Consumable Resources, Reusable Resources. Objective: To teach the basic concepts, phases and types of various operation systems along with several representations, specification and Phase management. ...
CSC204 – Programming I
... Java was officially announced in May 1995. The first official release of Java occurred in February 1996, when Sun made available version 1.0 of the Java Development Kit. Java 1.2 (released by the end of 98) and higher is referred to as Java 2. The latest Java version is 1.5, also known as Java ...
... Java was officially announced in May 1995. The first official release of Java occurred in February 1996, when Sun made available version 1.0 of the Java Development Kit. Java 1.2 (released by the end of 98) and higher is referred to as Java 2. The latest Java version is 1.5, also known as Java ...
OS_Java
... Windows temporarily keeps deleted files in Recycle Bin, while Linux rm delete them instantly. Windows task manager allows us to kill processes with their program names, while Linux uses IDs to kill specific processes. Windows starts an appropriate application for a file double-clicked, while Linux n ...
... Windows temporarily keeps deleted files in Recycle Bin, while Linux rm delete them instantly. Windows task manager allows us to kill processes with their program names, while Linux uses IDs to kill specific processes. Windows starts an appropriate application for a file double-clicked, while Linux n ...
Lab 5
... CMPT 242 Lab 5 Representation: Testing Big Endian Vs. Little Endian Purpose Background Reading And Preparation To learn how the integer representation used by the underlying hardware affects programming and data layout. Overview Write a C program that examines data stored in memory to determine whet ...
... CMPT 242 Lab 5 Representation: Testing Big Endian Vs. Little Endian Purpose Background Reading And Preparation To learn how the integer representation used by the underlying hardware affects programming and data layout. Overview Write a C program that examines data stored in memory to determine whet ...
Device Interfaces - Flight Software Workshop
... Memory copy utilites ( abstracted to support different memory interfaces ) ...
... Memory copy utilites ( abstracted to support different memory interfaces ) ...
Report
... in Budapest, Hungary, died 8 February 1957 in Washington, D.C.), proposed the stored program concept while professor of mathematics (one of the original six) at Princeton University’s Institute for Advanced Services, in which programs are stored in the same memory as data. The computer knows the dif ...
... in Budapest, Hungary, died 8 February 1957 in Washington, D.C.), proposed the stored program concept while professor of mathematics (one of the original six) at Princeton University’s Institute for Advanced Services, in which programs are stored in the same memory as data. The computer knows the dif ...
CST1215 Operating System Fundamentals
... Demonstrate the ability to use system monitoring techniques. Demonstrate the ability to use Windows7 OS as multi-user Operating Systems; perform basic operations on the user’s and administrator’s level; setting up permissions for users in the file system Demonstrate the ability to load and run a vir ...
... Demonstrate the ability to use system monitoring techniques. Demonstrate the ability to use Windows7 OS as multi-user Operating Systems; perform basic operations on the user’s and administrator’s level; setting up permissions for users in the file system Demonstrate the ability to load and run a vir ...
Operating System Structures
... Since main memory (primary storage) is volatile and too small to accommodate all data and programs permanently, the computer system must provide secondary storage to back up main memory. Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. The o ...
... Since main memory (primary storage) is volatile and too small to accommodate all data and programs permanently, the computer system must provide secondary storage to back up main memory. Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. The o ...
Assignment No
... In an event-driven program, the program first waits for events to occur, responds to those events, and then returns to waiting for the next event. How the program responds depends on the code written for that specific event. The order in which an event-driven program executes depends on which events ...
... In an event-driven program, the program first waits for events to occur, responds to those events, and then returns to waiting for the next event. How the program responds depends on the code written for that specific event. The order in which an event-driven program executes depends on which events ...
13. Operating Systems
... CPU time, and I/O devices to programs Protects users and programs from each other and provides for inter-program communication Provides feedback to the system administrators to permit performance optimization of the computer system Chapter 13 Operating Systems: An Overview ...
... CPU time, and I/O devices to programs Protects users and programs from each other and provides for inter-program communication Provides feedback to the system administrators to permit performance optimization of the computer system Chapter 13 Operating Systems: An Overview ...
Intro-comp
... that carries out the instructions of a computer program and is the primary element carrying out the computer's functions. Example: (3 + 2) = 5 In an addition operation, the arithmetic logic unit (ALU) will be connected to a set of inputs and a set of outputs. The inputs provide the numbers to be add ...
... that carries out the instructions of a computer program and is the primary element carrying out the computer's functions. Example: (3 + 2) = 5 In an addition operation, the arithmetic logic unit (ALU) will be connected to a set of inputs and a set of outputs. The inputs provide the numbers to be add ...
Processes
... • Recent CPU x86 virtualization instructions for a hypervisor to control ring0 hardware access – Create a new ”Ring -1” – Guest OS can run Ring0 operations natively without affecting other guests or the host OS – both Intel's "Vanderpool" (or VT) and AMD's "Pacifica" (AMD-V) ...
... • Recent CPU x86 virtualization instructions for a hypervisor to control ring0 hardware access – Create a new ”Ring -1” – Guest OS can run Ring0 operations natively without affecting other guests or the host OS – both Intel's "Vanderpool" (or VT) and AMD's "Pacifica" (AMD-V) ...
CS307-slides13
... Venus carries out path-name translation component by component The UNIX file system is used as a low-level storage system for both servers ...
... Venus carries out path-name translation component by component The UNIX file system is used as a low-level storage system for both servers ...
PPT slides - SIUE Computer Science
... CS 314 Operating Systems Operating systems as resource manager (continued) In the previous example, we discussed process management as an example of resource management, similar (but different) resource management is performed for every and each resource available in a computer system Examples • Me ...
... CS 314 Operating Systems Operating systems as resource manager (continued) In the previous example, we discussed process management as an example of resource management, similar (but different) resource management is performed for every and each resource available in a computer system Examples • Me ...
Lecture slides
... The idea behind operating different services at different run levels essentially revolves around the fact that different systems can be used in different ways. Some services cannot be used until the system is in a particular state, or mode, such as being ready for more than one user or having networ ...
... The idea behind operating different services at different run levels essentially revolves around the fact that different systems can be used in different ways. Some services cannot be used until the system is in a particular state, or mode, such as being ready for more than one user or having networ ...
Lecture 6
... • We can write executable files that consist of shell commands. These are often called shell scripts. – "script" has many different meanings in programming. In this case it signifies that these are a) relatively small programs and b) interpreted, not compiled. ...
... • We can write executable files that consist of shell commands. These are often called shell scripts. – "script" has many different meanings in programming. In this case it signifies that these are a) relatively small programs and b) interpreted, not compiled. ...
course outline - Clackamas Community College
... Demonstrate and explain the desktop metaphor as exemplified in both the Windows and Mac OS GUIs with a focus on the concepts and skills that are common amongst four versions of Windows. (NT, 98, 2000, and XP.) For all of these operating systems, demonstrate and explain their basic features, plus the ...
... Demonstrate and explain the desktop metaphor as exemplified in both the Windows and Mac OS GUIs with a focus on the concepts and skills that are common amongst four versions of Windows. (NT, 98, 2000, and XP.) For all of these operating systems, demonstrate and explain their basic features, plus the ...
Introduction
... has a GID (Group IDentification). • The superuser (root in UNIX) has special privilege to violate many of the protection rules. • In UNIX, use the command ‘ps’ to know the process status. ...
... has a GID (Group IDentification). • The superuser (root in UNIX) has special privilege to violate many of the protection rules. • In UNIX, use the command ‘ps’ to know the process status. ...
Operating System - GCG-42
... MS-DOS is an acronym for MicroSoft Disk Operating System It is a CUI based operating system. It provides user with a command prompt (generally called as C:\) where various command could be typed. When one operates in the DOS environment, one interacts with the command interpreter, which inte ...
... MS-DOS is an acronym for MicroSoft Disk Operating System It is a CUI based operating system. It provides user with a command prompt (generally called as C:\) where various command could be typed. When one operates in the DOS environment, one interacts with the command interpreter, which inte ...
OPERATING SYSTEMS 2015-16 1 OPERATING SYSTEM
... Caching Important principle, performed at many levels in a computer (in hardware, operating system, software) Information in use copied from slower to faster storage temporarily Faster storage (cache) checked first to determine if information is there If it is, information used directly from ...
... Caching Important principle, performed at many levels in a computer (in hardware, operating system, software) Information in use copied from slower to faster storage temporarily Faster storage (cache) checked first to determine if information is there If it is, information used directly from ...
Week 5 - Portland State University
... It must have the privilege to manipulate the hardware set base and limit registers for memory protection access devices set and clear mode bit to enable privilege If user programs execute with the mode bit clear, and do not have privilege to set it, how can they invoke the OS so that it can ru ...
... It must have the privilege to manipulate the hardware set base and limit registers for memory protection access devices set and clear mode bit to enable privilege If user programs execute with the mode bit clear, and do not have privilege to set it, how can they invoke the OS so that it can ru ...
MEMORY MANAGEMENT
... Support of modular programming: Programmers should be able to define program modules, and to create, destroy, and alter the size of modules dynamically. ...
... Support of modular programming: Programmers should be able to define program modules, and to create, destroy, and alter the size of modules dynamically. ...
Literatur Computer Systeme und Anwendungen Informatics 3
... Mount the Root File System (The root file system is usually located on hard disk. There all permanent programs and data. Program and data are stored as a file which can be accessed by the use of a file name. The size of a file can be very different varying form a few bytes (for a short text file) to ...
... Mount the Root File System (The root file system is usually located on hard disk. There all permanent programs and data. Program and data are stored as a file which can be accessed by the use of a file name. The size of a file can be very different varying form a few bytes (for a short text file) to ...
Library (computing)
In computer science, a library is a collection of non-volatile resources used by computer programs, often to develop software. These may include configuration data, documentation, help data, message templates, pre-written code and subroutines, classes, values or type specifications. In IBM's OS/360 and its successors they are referred to as partitioned data sets.In computer science, a library is a collection of implementations of behavior, written in terms of a language, that has a well-defined interface by which the behavior is invoked. This means that as long as a higher level program uses a library to make system calls, it does not need to be re-written to implement those system calls over and over again. In addition, the behavior is provided for reuse by multiple independent programs. A program invokes the library-provided behavior via a mechanism of the language. For example, in a simple imperative language such as C, the behavior in a library is invoked by using C's normal function-call. What distinguishes the call as being to a library, versus being to another function in the same program, is the way that the code is organized in the system. Library code is organized in such a way that it can be used by multiple programs that have no connection to each other, while code that is part of a program is organized to only be used within that one program. This distinction can gain a hierarchical notion when a program grows large, such as a multi-million-line program. In that case, there may be internal libraries that are reused by independent sub-portions of the large program. The distinguishing feature is that a library is organized for the purposes of being reused by independent programs or sub-programs, and the user only needs to know the interface, and not the internal details of the library.The value of a library is the reuse of the behavior. When a program invokes a library, it gains the behavior implemented inside that library without having to implement that behavior itself. Libraries encourage the sharing of code in a modular fashion, and ease the distribution of the code. The behavior implemented by a library can be connected to the invoking program at different program lifecycle phases. If the code of the library is accessed during the build of the invoking program, then the library is called a static library. An alternative is to build the executable of the invoking program and distribute that, independently from the library implementation. The library behavior is connected after the executable has been invoked to be executed, either as part of the process of starting the execution, or in the middle of execution. In this case the library is called a dynamic library. A dynamic library can be loaded and linked as part of preparing a program for execution, by the linker. Alternatively, in the middle of execution, an application may explicitly request that a module be loaded.Most compiled languages have a standard library although programmers can also create their own custom libraries. Most modern software systems provide libraries that implement the majority of system services. Such libraries have commoditized the services which a modern application requires. As such, most code used by modern applications is provided in these system libraries.