CSCI 315 Lecture 3
... Operating Systems Concepts with Java, by Silberschatz, Galvin, and Gagne (2007). Many, if not all, the illustrations contained in this presentation come from this source. ...
... Operating Systems Concepts with Java, by Silberschatz, Galvin, and Gagne (2007). Many, if not all, the illustrations contained in this presentation come from this source. ...
Introduction to Object Technology
... – MS-DOS Version 2.0: Command interface like ‘Shell’, hierarchical file system – Later versions of MS-DOS: Multiple users, multiple processes CS-550: Comparative Operating Systems ...
... – MS-DOS Version 2.0: Command interface like ‘Shell’, hierarchical file system – Later versions of MS-DOS: Multiple users, multiple processes CS-550: Comparative Operating Systems ...
Amoeba Distributed Operating System
... It has not had an official update in over 10 years Can use older/slower CPUs to create a powerful system Micro-Kernel allows for other file systems to be created ...
... It has not had an official update in over 10 years Can use older/slower CPUs to create a powerful system Micro-Kernel allows for other file systems to be created ...
Inside and Outside the OS
... process management Substantially less information than a normal PCB Chapter 15 The Internal Operating System – Part 1 ...
... process management Substantially less information than a normal PCB Chapter 15 The Internal Operating System – Part 1 ...
UNIX Foundations - Computer Science
... Allocation of secondary memory to processes Protection attributes for access to shared memory regions Information needed to manage virtual memory ...
... Allocation of secondary memory to processes Protection attributes for access to shared memory regions Information needed to manage virtual memory ...
Memory Protection: Kernel and User Address Spaces
... Try ‘gcc a.c’ and ‘gcc –static a.c’ and check the size of the executable. One problem with dynamically linked executable is that it is less portable: assume the shared library is available and the same Statically linked executables are more self-contained. ...
... Try ‘gcc a.c’ and ‘gcc –static a.c’ and check the size of the executable. One problem with dynamically linked executable is that it is less portable: assume the shared library is available and the same Statically linked executables are more self-contained. ...
A Reflective Middleware Framework for Communication in
... Lightweight Process: PCB with register data, accounting and memory information - switching between LWP is ...
... Lightweight Process: PCB with register data, accounting and memory information - switching between LWP is ...
Chapter 5 Concurrency: Mutual Exclusion and Exclusion and
... Enforce Single Access • If we enforce a rule that only one process may enter the function at a time then: • P1 & P2 run on separate processors • P1 enters echo first, – P2 tries to enter but is blocked – P2 suspends ...
... Enforce Single Access • If we enforce a rule that only one process may enter the function at a time then: • P1 & P2 run on separate processors • P1 enters echo first, – P2 tries to enter but is blocked – P2 suspends ...
Chapter 05: Concurrency: Mutual Exclusion and Synchronization
... Enforce Single Access • If we enforce a rule that only one process may enter the function at a time then: • P1 & P2 run on separate processors • P1 enters echo first, – P2 tries to enter but is blocked – P2 suspends ...
... Enforce Single Access • If we enforce a rule that only one process may enter the function at a time then: • P1 & P2 run on separate processors • P1 enters echo first, – P2 tries to enter but is blocked – P2 suspends ...
communication in distributed system and remote procedure call
... system call that causes the operating system to fetch the message and send it over the network to B. To make it easier to deal with numerous levels and issues involved in communication, the international Standards Organization has developed a reference model, that clearly identifies the various leve ...
... system call that causes the operating system to fetch the message and send it over the network to B. To make it easier to deal with numerous levels and issues involved in communication, the international Standards Organization has developed a reference model, that clearly identifies the various leve ...
Modern Operating System - Tanenbaum solution 3rd
... them are as follows. First, you do not want the operating system to crash because a poorly written user program does not allow for enough stack space. Second, if the kernel leaves stack data in a user program’s memory space upon return from a system call, a malicious user might be able to use this d ...
... them are as follows. First, you do not want the operating system to crash because a poorly written user program does not allow for enough stack space. Second, if the kernel leaves stack data in a user program’s memory space upon return from a system call, a malicious user might be able to use this d ...
EN_C2_Eng - BCS Koolitus
... The operating system can also be seen as a resources5 manager. Let us imagine what may happen if several programs use the same device (say a printer) at the same time. The result could be chaotic as the prints of the programs may overlap. From this point of view the operating system acts as a refere ...
... The operating system can also be seen as a resources5 manager. Let us imagine what may happen if several programs use the same device (say a printer) at the same time. The result could be chaotic as the prints of the programs may overlap. From this point of view the operating system acts as a refere ...
thread - Zemris
... Bus-based computer architecture all types of data transfer, control signals and instructions are relayed through a (common) bus bus transfer: divided in bus cycles memory ...
... Bus-based computer architecture all types of data transfer, control signals and instructions are relayed through a (common) bus bus transfer: divided in bus cycles memory ...
601331-OS-QA-2016
... Explain the different types of schedulers; short, medium and long term. To differentiate between user and kernel modes in an operating system. Discuss different components for structuring an operating system. Explain the concurrency in the execution of processes, and show the run-time problems arisi ...
... Explain the different types of schedulers; short, medium and long term. To differentiate between user and kernel modes in an operating system. Discuss different components for structuring an operating system. Explain the concurrency in the execution of processes, and show the run-time problems arisi ...
Introduction
... The Remote Procedure Call (RPC) Distributed Objects Distributed Documents [All of which we return to in detail later in this course … ] ...
... The Remote Procedure Call (RPC) Distributed Objects Distributed Documents [All of which we return to in detail later in this course … ] ...
Windows
... The relationship amongst operating systems, application programs, user files via the supervisor, OS manages the CPU and directs other programs to perform tasks to support applications programs. The operating system keeps track of locations in main memory where programs and data are stored (memory ma ...
... The relationship amongst operating systems, application programs, user files via the supervisor, OS manages the CPU and directs other programs to perform tasks to support applications programs. The operating system keeps track of locations in main memory where programs and data are stored (memory ma ...
theGuard! ApplicationManager System Windows Data
... There is more to efficiently managing an application than maximizing its availability. Targeted tuning can increase the performance and stability of business-critical applications without having to invest in additional hardware (processors, RAM, disk space). A number of data collectors have been dev ...
... There is more to efficiently managing an application than maximizing its availability. Targeted tuning can increase the performance and stability of business-critical applications without having to invest in additional hardware (processors, RAM, disk space). A number of data collectors have been dev ...
message
... Lightweight Process: PCB with register data, accounting and memory information - switching between LWP is ...
... Lightweight Process: PCB with register data, accounting and memory information - switching between LWP is ...
Operating Systems
... Time-sharing with processes • In time-sharing systems each process is assigned a maximum time slice – This may vary for different processes – Many processes release the CPU before the maximum assigned time is exceeded • Perhaps because they request an input or output • i/o requires a call to the OS ...
... Time-sharing with processes • In time-sharing systems each process is assigned a maximum time slice – This may vary for different processes – Many processes release the CPU before the maximum assigned time is exceeded • Perhaps because they request an input or output • i/o requires a call to the OS ...
Abstract View of System Components
... The system call interface invokes intended system call in OS kernel and returns status of the system call and any return values The callers need know nothing about how the system call is implemented – Just needs to obey API and understand what OS will do as a result call – Most details of OS interfa ...
... The system call interface invokes intended system call in OS kernel and returns status of the system call and any return values The callers need know nothing about how the system call is implemented – Just needs to obey API and understand what OS will do as a result call – Most details of OS interfa ...
CHAP3
... A process may be linked to other processes in a queue, ring, or some other structure. For example, all processes in a waiting state for a particular priority level may be linked in a queue. A process may exhibit a parent-child (creator-created) relationship with another process. The PCB may contain ...
... A process may be linked to other processes in a queue, ring, or some other structure. For example, all processes in a waiting state for a particular priority level may be linked in a queue. A process may exhibit a parent-child (creator-created) relationship with another process. The PCB may contain ...
PPT Chapter 01
... Abstract view of a resource taken by a program Supported by OS through use of a real resource Same real resource may support several virtual ones Started with the use of virtual devices • E.g., a print server ...
... Abstract view of a resource taken by a program Supported by OS through use of a real resource Same real resource may support several virtual ones Started with the use of virtual devices • E.g., a print server ...
Section A: Operating Systems Basics
... renaming files not to change the extension. Explain that most programs, such as Microsoft Office XP and 2003 automatically add the extension to the filename. ...
... renaming files not to change the extension. Explain that most programs, such as Microsoft Office XP and 2003 automatically add the extension to the filename. ...
CIS 721 - Lecture 1
... • A UNIX command consists of a single word generally using alphabetic characters. • Commands are essentially files representing programs – mainly written in C. These files are stored in certain folders known as directories. • For instance, the ls command is also a program located in the directory /b ...
... • A UNIX command consists of a single word generally using alphabetic characters. • Commands are essentially files representing programs – mainly written in C. These files are stored in certain folders known as directories. • For instance, the ls command is also a program located in the directory /b ...
Operating System Security
... Functions of Operating System Is a mediator between user applications and hardware Handles lot many complex tasks ...
... Functions of Operating System Is a mediator between user applications and hardware Handles lot many complex tasks ...