Operating Systems
... » access to all areas of virtual memory » ability to switch interrupts on and off ...
... » access to all areas of virtual memory » ability to switch interrupts on and off ...
OPERATING SYSTEM CONCEPT AND PRACTISE
... A Register is a high-speed storage area within the Central Processing Unit(CPU). All data must be represented in a register before it is processed. The Register contains address of memory location where data is stored. Sometimes the speed of CPU is high compared to access time of main memory, ...
... A Register is a high-speed storage area within the Central Processing Unit(CPU). All data must be represented in a register before it is processed. The Register contains address of memory location where data is stored. Sometimes the speed of CPU is high compared to access time of main memory, ...
2.01
... Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them ...
... Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them ...
Providing Bluetooth Functionality on Embedded Devices: A Survey
... Problems involved with Embedded Systems Design ...
... Problems involved with Embedded Systems Design ...
slides
... • Symmetric multiprocessing (SMP) – Each processor runs and identical copy of the operating system. – Many processes can run at once without performance deterioration. – Most modern operating systems support SMP. ...
... • Symmetric multiprocessing (SMP) – Each processor runs and identical copy of the operating system. – Many processes can run at once without performance deterioration. – Most modern operating systems support SMP. ...
Abstract View of System Components
... – Limited utility in industrial control or robotics – Useful in applications (multimedia, virtual reality) requiring advanced operating-system features. ...
... – Limited utility in industrial control or robotics – Useful in applications (multimedia, virtual reality) requiring advanced operating-system features. ...
CS_350_OS_PL_Presentation(1) Group 5
... for Linux are in the user space where as in Windows they operate in the kernel space. And as Andy Tanenbaum put it, it is better if more and more drivers run in the user space than the kernel space as this makes the OS more reliable and secure - Linux kernel has inbuilt support for the most variety ...
... for Linux are in the user space where as in Windows they operate in the kernel space. And as Andy Tanenbaum put it, it is better if more and more drivers run in the user space than the kernel space as this makes the OS more reliable and secure - Linux kernel has inbuilt support for the most variety ...
What is an Operating System?
... – Limited utility in industrial control or robotics – Useful in applications (multimedia, virtual reality) requiring advanced operating-system features. ...
... – Limited utility in industrial control or robotics – Useful in applications (multimedia, virtual reality) requiring advanced operating-system features. ...
Concurrency
... Whenever a suspended thread is resumed by the kernel, it returns to a fixed user-level sequence. Determine if the thread was suspended within a restartable atomic sequence. (complexity and overhead -&- save return address to user-level stack at each suspension) ...
... Whenever a suspended thread is resumed by the kernel, it returns to a fixed user-level sequence. Determine if the thread was suspended within a restartable atomic sequence. (complexity and overhead -&- save return address to user-level stack at each suspension) ...
bit8_DC_Lecture_2
... • to accept and store details of services that are available on the network and to respond to queries from clients about them • Interfaces of discovery services – registration service : accept registration requests from servers, stores properties in database of currently available services ...
... • to accept and store details of services that are available on the network and to respond to queries from clients about them • Interfaces of discovery services – registration service : accept registration requests from servers, stores properties in database of currently available services ...
Operating Systems
... To handle multiple processes and jobs, the process manager uses queues (waiting lists). A job control block or process control block is associated with each job or process. This is a block of memory that stores information about that job or process. The process manager stores the job or process cont ...
... To handle multiple processes and jobs, the process manager uses queues (waiting lists). A job control block or process control block is associated with each job or process. This is a block of memory that stores information about that job or process. The process manager stores the job or process cont ...
Chapter 2 Operating
... 2.3 System Calls System calls provide an interface to the services made available by an operating system. These calls are generally available as routines written in C and C++, although certain low level tasks (for example, tasks where hardware must be accessed directly), may need to be written using ...
... 2.3 System Calls System calls provide an interface to the services made available by an operating system. These calls are generally available as routines written in C and C++, although certain low level tasks (for example, tasks where hardware must be accessed directly), may need to be written using ...
Chapter 2 Operating System Overview
... supervise and control the process includes the contents of the various process registers includes information such as the priority of the process and whether the process is waiting for the completion of a particular I/O event ...
... supervise and control the process includes the contents of the various process registers includes information such as the priority of the process and whether the process is waiting for the completion of a particular I/O event ...
Introduction
... Mobile IP allows hosts to keep a contact address (home address) while connected to a different subnetwork ...
... Mobile IP allows hosts to keep a contact address (home address) while connected to a different subnetwork ...
Software Packet Processing
... • How to support IP defragmentation – It has to reserve packets until the other parts of packets arrived ...
... • How to support IP defragmentation – It has to reserve packets until the other parts of packets arrived ...
ch10
... Process-Based DO/S • Provides for process management via client/server processes synchronized and linked together through messages & ports (channels or pipes) • Emphasizes processes and messages and how they provide basic features essential to process management • Processes can be managed from sing ...
... Process-Based DO/S • Provides for process management via client/server processes synchronized and linked together through messages & ports (channels or pipes) • Emphasizes processes and messages and how they provide basic features essential to process management • Processes can be managed from sing ...
Chapter 9
... • Subsystems are another type of protected environment. • They provide logically distinct environments that can be individually controlled and managed. They can be stopped and started independent on each other. – Subsystems can have special purposes, such as controlling I/O or virtual machines. Othe ...
... • Subsystems are another type of protected environment. • They provide logically distinct environments that can be individually controlled and managed. They can be stopped and started independent on each other. – Subsystems can have special purposes, such as controlling I/O or virtual machines. Othe ...
Chapter 8
... • Subsystems are another type of protected environment. • They provide logically distinct environments that can be individually controlled and managed. They can be stopped and started independent on each other. – Subsystems can have special purposes, such as controlling I/O or virtual machines. Othe ...
... • Subsystems are another type of protected environment. • They provide logically distinct environments that can be individually controlled and managed. They can be stopped and started independent on each other. – Subsystems can have special purposes, such as controlling I/O or virtual machines. Othe ...
Threads - Computer Information Systems
... Bear in mind that Permanent State is generally stored in a database, such as customer information, purchases etc. Maintaining Session State is part of Stateful Server design. ...
... Bear in mind that Permanent State is generally stored in a database, such as customer information, purchases etc. Maintaining Session State is part of Stateful Server design. ...
1. Which of the following is an example of a systems program? A
... Ans: The modular approach combines the benefits of both the layered and microkernel design techniques. In a modular design, the kernel needs only to have the capability to perform the required functions and know how to communicate between modules. However, if more functionality is required in the ke ...
... Ans: The modular approach combines the benefits of both the layered and microkernel design techniques. In a modular design, the kernel needs only to have the capability to perform the required functions and know how to communicate between modules. However, if more functionality is required in the ke ...
Distributed operating system
A distributed operating system is a software over a collection of independent, networked, communicating, and physically separate computational nodes. Each individual node holds a specific software subset of the global aggregate operating system. Each subset is a composite of two distinct service provisioners. The first is a ubiquitous minimal kernel, or microkernel, that directly controls that node’s hardware. Second is a higher-level collection of system management components that coordinate the node's individual and collaborative activities. These components abstract microkernel functions and support user applications.The microkernel and the management components collection work together. They support the system’s goal of integrating multiple resources and processing functionality into an efficient and stable system. This seamless integration of individual nodes into a global system is referred to as transparency, or single system image; describing the illusion provided to users of the global system’s appearance as a single computational entity.