slides - Simon Fraser University
... Interrupts are generated by hardware devices Traps (or exceptions) are software-generated interrupts due to • software errors, e.g., divide by zero, illegal memory ...
... Interrupts are generated by hardware devices Traps (or exceptions) are software-generated interrupts due to • software errors, e.g., divide by zero, illegal memory ...
Ch2. Operating System Structures
... Protection and security - The owners of information stored in a multiuser or networked computer system may want to control use of that information, concurrent processes should not interfere with each other ...
... Protection and security - The owners of information stored in a multiuser or networked computer system may want to control use of that information, concurrent processes should not interfere with each other ...
Operating systems
... An operating system is an interface ? it is responsible for ? of activities and the sharing of the limited resources of the computer. The operating system acts as a host for ? that are run on the machine. As a host, one of the purposes of the operating system is to handle the details of ? . This rel ...
... An operating system is an interface ? it is responsible for ? of activities and the sharing of the limited resources of the computer. The operating system acts as a host for ? that are run on the machine. As a host, one of the purposes of the operating system is to handle the details of ? . This rel ...
Best-Effort Multimedia Networking Outline
... Memory Management CPU Scheduling Process Management Device Management Hardware ...
... Memory Management CPU Scheduling Process Management Device Management Hardware ...
Operating- System Structures
... in order to start a new process? Answer: In Unix systems, a fork system call followed by an exec system call need to be performed to start a new process. The fork call clones the currently executing process, while the exec call overlays a new process based on a different executable over the calling ...
... in order to start a new process? Answer: In Unix systems, a fork system call followed by an exec system call need to be performed to start a new process. The fork call clones the currently executing process, while the exec call overlays a new process based on a different executable over the calling ...
N4Less12
... the desktop. All applications running under the Mac OS, therefore, provided the same "look and feel" to the user. ...
... the desktop. All applications running under the Mac OS, therefore, provided the same "look and feel" to the user. ...
Self-Managing Techniques for Shared Server Resources
... Program execution: Processes, threads File systems and I/O Inter-process Communication (IPC) ...
... Program execution: Processes, threads File systems and I/O Inter-process Communication (IPC) ...
Operating Systems 2
... In order to perform the actions requested by the computer’s users, an operating system must be able to communicate with those users. The portion of an OS that handles this communication is often called the shell. Older shells communicate with users with textual ...
... In order to perform the actions requested by the computer’s users, an operating system must be able to communicate with those users. The portion of an OS that handles this communication is often called the shell. Older shells communicate with users with textual ...
MS Word file - Maricopa Community Colleges
... 1. ___________________ is a CD providing support information for MS products like NT Server. Microsoft’s electronic bulletin board is called ________________________. MS emphasizes that all hardware needs to be checked against the _____________. 4. The NT kernel contains ____________________________ ...
... 1. ___________________ is a CD providing support information for MS products like NT Server. Microsoft’s electronic bulletin board is called ________________________. MS emphasizes that all hardware needs to be checked against the _____________. 4. The NT kernel contains ____________________________ ...
OS/2 API
... • Two forms of protection - Protection is among the processes in the system and isolation of the system from the user processes. •The memory management component of the system is responsible for allocating process virtual address spaces and for setting up the required hardware structures to enable p ...
... • Two forms of protection - Protection is among the processes in the system and isolation of the system from the user processes. •The memory management component of the system is responsible for allocating process virtual address spaces and for setting up the required hardware structures to enable p ...
System Calls
... System calls: The mechanism used by an application program to request service from the operating system. System calls often use a special machine code instruction which causes the processor to change mode (e.g. to "supervisor mode" or "protected mode"). This allows the OS to perform restricted actio ...
... System calls: The mechanism used by an application program to request service from the operating system. System calls often use a special machine code instruction which causes the processor to change mode (e.g. to "supervisor mode" or "protected mode"). This allows the OS to perform restricted actio ...
The Operating System The Operating System of the computer is a
... were mainframe that had no form of an operating system. In the first generation of computers, programs were entered one bit at a time on row of mechanical plug boards. Programming language was unknown as well as the operating systems. In the second generation of computers the routine was improve wit ...
... were mainframe that had no form of an operating system. In the first generation of computers, programs were entered one bit at a time on row of mechanical plug boards. Programming language was unknown as well as the operating systems. In the second generation of computers the routine was improve wit ...
COS 318: Operating Systems Overview Kai Li Computer Science Department
... Dynamically link to shared libraries Prepare for the OS kernel to run the application ...
... Dynamically link to shared libraries Prepare for the OS kernel to run the application ...
KernelSec: An Authorization Model in the Operating System Kernel
... change privileges by switching to a different domain. Sometimes user actions need to be recorded beyond the lifetime of a process. KernelSec implements active transitions to support this. KernelSec also implements a sophisticated group mechanism that among other things can represent relationship amo ...
... change privileges by switching to a different domain. Sometimes user actions need to be recorded beyond the lifetime of a process. KernelSec implements active transitions to support this. KernelSec also implements a sophisticated group mechanism that among other things can represent relationship amo ...
Introduction to Database Systems
... The primary propose of an operating system is to facilitate easy, efficient, fair, orderly and secure use of commuter system resources. It allows the user of computer system to use application software – email, Web, word processors language libraries, system calls Hardware resources which include, k ...
... The primary propose of an operating system is to facilitate easy, efficient, fair, orderly and secure use of commuter system resources. It allows the user of computer system to use application software – email, Web, word processors language libraries, system calls Hardware resources which include, k ...
Chapter 2: OS Structures
... • MS-DOS – written to provide the most functionality in the least space – Not divided into modules – Although MS-DOS has some structure, its interfaces and levels of functionality are not well separated ...
... • MS-DOS – written to provide the most functionality in the least space – Not divided into modules – Although MS-DOS has some structure, its interfaces and levels of functionality are not well separated ...
Operating Systems Concepts
... List down the algorithms for synchronization, deadlock handling and allocation of resources. Coding is not required. Tabulate the functions in memory management, storage management and file system management in a typical operating system. Compare two real life operating systems - Linux and a p ...
... List down the algorithms for synchronization, deadlock handling and allocation of resources. Coding is not required. Tabulate the functions in memory management, storage management and file system management in a typical operating system. Compare two real life operating systems - Linux and a p ...
Lecture Overview Operating System Components
... from all other virtual machines. This isolation, however, permits no direct sharing of resources. • A virtual-machine system is a perfect vehicle for operating-systems research and development. System development is done on the virtual machine, instead of on a physical machine and so does not disrup ...
... from all other virtual machines. This isolation, however, permits no direct sharing of resources. • A virtual-machine system is a perfect vehicle for operating-systems research and development. System development is done on the virtual machine, instead of on a physical machine and so does not disrup ...
Operating System Objectives and Functions
... Thread- dispatchable unit of work. It includes a processor context program counter and stack pointer and its own data storage for the stack. It executes sequentially and is interruptable Process- collection of one or more threads and associated system resources. Symmetric multiprocessing- standalone ...
... Thread- dispatchable unit of work. It includes a processor context program counter and stack pointer and its own data storage for the stack. It executes sequentially and is interruptable Process- collection of one or more threads and associated system resources. Symmetric multiprocessing- standalone ...
chapter 1: operating system fundamentals
... • A collection of software modules to assist programmers in enhancing system efficiency, flexibility, and robustness • An Extended Machine from the users’ viewpoint • A Resource Manager from the system’s viewpoint ...
... • A collection of software modules to assist programmers in enhancing system efficiency, flexibility, and robustness • An Extended Machine from the users’ viewpoint • A Resource Manager from the system’s viewpoint ...
PPT - Surendar Chandra
... - Applications are made up of OS libraries (that interact with a non-portable exokernel). OS does not trust OS libraries. Hence, applications can trust the application libraries. ...
... - Applications are made up of OS libraries (that interact with a non-portable exokernel). OS does not trust OS libraries. Hence, applications can trust the application libraries. ...
pdf
... • Definition: An Operating System (OS) provides a virtual machine on top of the hardware that is more convenient than the raw hardware interface ...
... • Definition: An Operating System (OS) provides a virtual machine on top of the hardware that is more convenient than the raw hardware interface ...