Document
... • Specialized programs that allow communication between a device and the computer • Loaded into memory each time a computer is started • When a new device is added, new device drivers must be installed ...
... • Specialized programs that allow communication between a device and the computer • Loaded into memory each time a computer is started • When a new device is added, new device drivers must be installed ...
09CS212 OPERATING SYSTEM Credits: 3:0:0 Course Objective: To
... 09CS212 OPERATING SYSTEM Credits: 3:0:0 Course Objective: To gain knowledge about the Operating Systems concepts such as process, main management, secondary memory management, CPU and disk scheduling etc. ...
... 09CS212 OPERATING SYSTEM Credits: 3:0:0 Course Objective: To gain knowledge about the Operating Systems concepts such as process, main management, secondary memory management, CPU and disk scheduling etc. ...
Q#1: A _____ is an example of a systems program. Q#2: A
... Ans: ______b_________ (1pt) Q#4: Microkernels use _____ for communication. a) message passing b) shared memory c) system calls d) virtualization Ans: ______A_________ (1pt) Q#5: Which of the following is true: a) Many operating system merge I/O devices and files into a combined file because of the s ...
... Ans: ______b_________ (1pt) Q#4: Microkernels use _____ for communication. a) message passing b) shared memory c) system calls d) virtualization Ans: ______A_________ (1pt) Q#5: Which of the following is true: a) Many operating system merge I/O devices and files into a combined file because of the s ...
1. Operating system
... Memory - allocates real or virtual memory to an application as required Peripherals - allocation of disk space, print spooling, etc. • Coordinator of operations Optimising utilisation, i.e. sharing CPU time and disk I/O between applications. Synchronising activities, i.e. between applications ...
... Memory - allocates real or virtual memory to an application as required Peripherals - allocation of disk space, print spooling, etc. • Coordinator of operations Optimising utilisation, i.e. sharing CPU time and disk I/O between applications. Synchronising activities, i.e. between applications ...
Operating System Overview
... • Multiple users simultaneously access the system through terminals ...
... • Multiple users simultaneously access the system through terminals ...
Chapter 1: Introduction
... the CPU from instructions, to physical addresses (which go in the memory address register (MAR) ). A contiguous logical address space can now map discontiguously to anywhere in physical memory and the mapping may even change throughout the life of the associated process. This process of address tran ...
... the CPU from instructions, to physical addresses (which go in the memory address register (MAR) ). A contiguous logical address space can now map discontiguously to anywhere in physical memory and the mapping may even change throughout the life of the associated process. This process of address tran ...
Chapter 02: Operating System Overview
... • Multiple users simultaneously access the system through terminals ...
... • Multiple users simultaneously access the system through terminals ...
COMP 3410
... Course Description The purpose of this course is to provide students basic knowledge of operating systems, difference between the kernel and user modes, concepts of application program interfaces, methods and implementations of interrupts. Students are introduced to the schedulers, policies, process ...
... Course Description The purpose of this course is to provide students basic knowledge of operating systems, difference between the kernel and user modes, concepts of application program interfaces, methods and implementations of interrupts. Students are introduced to the schedulers, policies, process ...
No Slide Title
... backing store, and then brought back into memory for continued execution. • Backing store – fast disk large enough to accommodate copies of all memory images for all users; must provide direct access to these memory images. • Roll out, roll in – swapping variant used for priority-based scheduling al ...
... backing store, and then brought back into memory for continued execution. • Backing store – fast disk large enough to accommodate copies of all memory images for all users; must provide direct access to these memory images. • Roll out, roll in – swapping variant used for priority-based scheduling al ...
Introduction - USC Upstate: Faculty
... – performing file I/O (open, close, read, write) – running application programs (exec). ...
... – performing file I/O (open, close, read, write) – running application programs (exec). ...
Operating Systems
... Each device driver is uniquely designed for its particular type of device and translate the generic requests to more technical steps required by the ...
... Each device driver is uniquely designed for its particular type of device and translate the generic requests to more technical steps required by the ...
lecture notes
... Initially, the cache is empty ▪ Ask the user to input a number in range 1..100 ▪ If the answer is not in the cache, call calculateAnswer() and display the resulting sum; store the result in the cache ▪ If the answer is in the cache, simply display the answer ...
... Initially, the cache is empty ▪ Ask the user to input a number in range 1..100 ▪ If the answer is not in the cache, call calculateAnswer() and display the resulting sum; store the result in the cache ▪ If the answer is in the cache, simply display the answer ...
OsQuestionPaper
... 1 is a piece of code which only one process executes at a time 2 is a region prone to deadlock 3 is a piece of code which only a finite number of processes execute 4 is found only in Windows NT operation system 7. The mechanism that bring a page into memory only when it is needed is called _________ ...
... 1 is a piece of code which only one process executes at a time 2 is a region prone to deadlock 3 is a piece of code which only a finite number of processes execute 4 is found only in Windows NT operation system 7. The mechanism that bring a page into memory only when it is needed is called _________ ...
Operating Systems CMPSC 473
... • OS competes with the processes for resources – E.g., OS uses disk to swap ...
... • OS competes with the processes for resources – E.g., OS uses disk to swap ...
Software Engineering Syllabus
... The program for the current task is placed in main memory, executed, and then replaced by the program for the next task ...
... The program for the current task is placed in main memory, executed, and then replaced by the program for the next task ...
Software Engineering Syllabus
... The program for the current task is placed in main memory, executed, and then replaced by the program for the next task ...
... The program for the current task is placed in main memory, executed, and then replaced by the program for the next task ...
CSCI1412 - Introduction & Overview
... – the unused page(s) (instructions or data pages from an inactive process) are copied out to hard disk – the required page is then loaded into RAM • this is called swapping ...
... – the unused page(s) (instructions or data pages from an inactive process) are copied out to hard disk – the required page is then loaded into RAM • this is called swapping ...
Operating Systems
... • Determines which programs are submitted for processing • i.e. controls the degree of multiprogramming • Once submitted, a job becomes a process for the short term scheduler • (or it becomes a swapped out job for the medium term scheduler) ...
... • Determines which programs are submitted for processing • i.e. controls the degree of multiprogramming • Once submitted, a job becomes a process for the short term scheduler • (or it becomes a swapped out job for the medium term scheduler) ...
Lecture17
... frame from the set of all frames; one process can take a frame from another Local replacement process selects from only its own set of allocated frames ...
... frame from the set of all frames; one process can take a frame from another Local replacement process selects from only its own set of allocated frames ...
Sec (3.2)
... the software units that communicates with the controllers to carry out operations on the peripheral devices attached to the machine. Each device driver is uniquely designed for its particular type of device (printer, disk drive, monitor) and translate generic requests into the more technical steps r ...
... the software units that communicates with the controllers to carry out operations on the peripheral devices attached to the machine. Each device driver is uniquely designed for its particular type of device (printer, disk drive, monitor) and translate generic requests into the more technical steps r ...
PowerPoint 2003 - FSU Computer Science
... Long term data storage Protection, security, accounting Real time support, parallelism, human interface ...
... Long term data storage Protection, security, accounting Real time support, parallelism, human interface ...
PowerPoint 2003
... Long term data storage Protection, security, accounting Real time support, parallelism, human interface ...
... Long term data storage Protection, security, accounting Real time support, parallelism, human interface ...
Operating Systems
... • Determines which programs are submitted for processing • i.e. controls the degree of multiprogramming • Once submitted, a job becomes a process for the short term scheduler • (or it becomes a swapped out job for the medium term scheduler) ...
... • Determines which programs are submitted for processing • i.e. controls the degree of multiprogramming • Once submitted, a job becomes a process for the short term scheduler • (or it becomes a swapped out job for the medium term scheduler) ...
Operating system
... parts. One part for the operating system and one part for the program currently being executed. • Multiprogramming: —“User” part of memory is sub-divided and shared among active processes. The task of subdivision is carried out dynamically by the operating system and is known as memory management. ...
... parts. One part for the operating system and one part for the program currently being executed. • Multiprogramming: —“User” part of memory is sub-divided and shared among active processes. The task of subdivision is carried out dynamically by the operating system and is known as memory management. ...