File-System
... create a network login. A newer version is called active directory. One distributed LDAP (lightweight directory-access protocol) could be used by an organization to store all user and resource information for all organization’s computers. The result is secure single sign-on for users. Skip 10.5.2. ...
... create a network login. A newer version is called active directory. One distributed LDAP (lightweight directory-access protocol) could be used by an organization to store all user and resource information for all organization’s computers. The result is secure single sign-on for users. Skip 10.5.2. ...
System Software
... perform other management & monitoring function. The most important of these programs is the operating system. Other examples are database management systems (DBMS) & communication monitors. System support programs provide routine service functions to the other computer programs & computer users: E.g ...
... perform other management & monitoring function. The most important of these programs is the operating system. Other examples are database management systems (DBMS) & communication monitors. System support programs provide routine service functions to the other computer programs & computer users: E.g ...
Embedded Operating Systems and Linux
... What is an Embedded OS? • An embedded OS is an operating system which runs on any embedded platform. • Embedded platforms are generally required to function without human intervention. • A typical embedded system consists of a single-board microcomputer or SOC with an OS and some software loaded in ...
... What is an Embedded OS? • An embedded OS is an operating system which runs on any embedded platform. • Embedded platforms are generally required to function without human intervention. • A typical embedded system consists of a single-board microcomputer or SOC with an OS and some software loaded in ...
Homework Assignment 1 Practice the following questions based on
... appropriate arguments. The advantage of the first method is speed and overall simplicity. The disadvantage to this technique is that new commands require rewriting the interpreter program which, after a number of modifications, may get complicated, messy, or too large. The advantage to the second me ...
... appropriate arguments. The advantage of the first method is speed and overall simplicity. The disadvantage to this technique is that new commands require rewriting the interpreter program which, after a number of modifications, may get complicated, messy, or too large. The advantage to the second me ...
Helios: Heterogeneous Multiprocessing with Satellite Kernels
... Satellite kernels are microkernels. Each satellite kernel is composed of a scheduler, a memory manager, a namespace manager, and code to coordinate communication between other kernels. All other traditional operating system drivers and services (e.g., a file system) execute as individual processes. ...
... Satellite kernels are microkernels. Each satellite kernel is composed of a scheduler, a memory manager, a namespace manager, and code to coordinate communication between other kernels. All other traditional operating system drivers and services (e.g., a file system) execute as individual processes. ...
Lecture 1 - The Laboratory for Advanced Systems Research
... – Synchronization, security, integrity, protocols, distributed computing, dynamic resource management, ... – In this class, we study these problems and their solutions – These approaches can be applied to other areas Lecture 1 Page 24 ...
... – Synchronization, security, integrity, protocols, distributed computing, dynamic resource management, ... – In this class, we study these problems and their solutions – These approaches can be applied to other areas Lecture 1 Page 24 ...
Mod1: Chapter 1 (and a little extra)
... better but I realize that there is a larger market of users running Windows at home. UNIX Operating System I ...
... better but I realize that there is a larger market of users running Windows at home. UNIX Operating System I ...
Module 6: CPU Scheduling
... If there are n processes in the ready queue and the time quantum is q, then each process gets 1/n of the CPU time in chunks of at most q time units at once. No process waits more than (n-1)q time units. ...
... If there are n processes in the ready queue and the time quantum is q, then each process gets 1/n of the CPU time in chunks of at most q time units at once. No process waits more than (n-1)q time units. ...
Chapter 9: Virtual Memory
... Each program takes less memory while running -> more programs run at the same time ...
... Each program takes less memory while running -> more programs run at the same time ...
Chapter 9: Virtual Memory
... Each program takes less memory while running -> more programs run at the same time ...
... Each program takes less memory while running -> more programs run at the same time ...
Interrupts and Interrupt Handlers
... A process does not have to use all its timeslice at once. A process with 100ms timeslice can run on 5 different reschedules for 20ms each A large time slice benefits interactive tasks: no need for large timeslice at once, remain runnable for as long as possible Timesllice runs out -> expired - ...
... A process does not have to use all its timeslice at once. A process with 100ms timeslice can run on 5 different reschedules for 20ms each A large time slice benefits interactive tasks: no need for large timeslice at once, remain runnable for as long as possible Timesllice runs out -> expired - ...
Module 6: CPU Scheduling - Simon Fraser University
... Priorities are divided into classes, each has several relative priorities ...
... Priorities are divided into classes, each has several relative priorities ...
Module 4: Processes
... Textbook uses the terms job and process almost interchangeably Process – a program in execution; process execution must progress in sequential fashion ...
... Textbook uses the terms job and process almost interchangeably Process – a program in execution; process execution must progress in sequential fashion ...
Processes - Service web
... Textbook uses the terms job and process almost interchangeably Process – a program in execution; process execution must progress in sequential fashion ...
... Textbook uses the terms job and process almost interchangeably Process – a program in execution; process execution must progress in sequential fashion ...
HPDC - Pitt Computer Science
... shared memory channels, and (4) using virtualization techniques to provide missing OS features. The implementation of the Pisces co-kernel architecture is based on the Kitten Lightweight Kernel and Palacios Virtual Machine Monitor, two system software architectures designed specifically for HPC syst ...
... shared memory channels, and (4) using virtualization techniques to provide missing OS features. The implementation of the Pisces co-kernel architecture is based on the Kitten Lightweight Kernel and Palacios Virtual Machine Monitor, two system software architectures designed specifically for HPC syst ...
Dept. of Computer Science Engineering, School of Engineering
... 4. Justify the following statements. OS can be viewed as a Resource Allocator. OS is a Control Program 5. Some CPUs provide for more than two modes of operation. What are two possible uses of these multiple modes? Explain. 6. a) What are OS objectives? Explain them detail. b) Explain basic structure ...
... 4. Justify the following statements. OS can be viewed as a Resource Allocator. OS is a Control Program 5. Some CPUs provide for more than two modes of operation. What are two possible uses of these multiple modes? Explain. 6. a) What are OS objectives? Explain them detail. b) Explain basic structure ...
Networks and Operating Systems (252-0062
... Ensure one application cannot r/w another’s data In memory, on disk, over network Ensure one application cannot use another’s resources CPU, storage space, bandwidth, … ...
... Ensure one application cannot r/w another’s data In memory, on disk, over network Ensure one application cannot use another’s resources CPU, storage space, bandwidth, … ...
Operating Systems (Notes to prepare in 1 night before Exam)
... 1. Single-Level Directory:- In a single-level directory system, all the files are placed in one directory. This is very common on single-user OS. It has significant limitations when the no. of files or when there is more than one user. Since all the files are in same folder, they must have unique na ...
... 1. Single-Level Directory:- In a single-level directory system, all the files are placed in one directory. This is very common on single-user OS. It has significant limitations when the no. of files or when there is more than one user. Since all the files are in same folder, they must have unique na ...
Scheduling - Ubiquitous Computing Lab
... – Preemptive version of SJF: if job arrives and has a shorter time to completion than the remaining time on the current job, immediately preempt CPU – Sometimes called “Shortest Remaining Time to ...
... – Preemptive version of SJF: if job arrives and has a shorter time to completion than the remaining time on the current job, immediately preempt CPU – Sometimes called “Shortest Remaining Time to ...