virtual machine
... operations directly, the operating system must provide some means to perform I/O. File-system manipulation – program capability to read, write, create, and delete files. Communications – exchange of information between processes executing either on the same computer or on different systems tied toge ...
... operations directly, the operating system must provide some means to perform I/O. File-system manipulation – program capability to read, write, create, and delete files. Communications – exchange of information between processes executing either on the same computer or on different systems tied toge ...
CMPT 880: Internet Architectures and Protocols
... OS is a resource allocator Manages all resources Decides between conflicting requests for efficient and fair resource use ...
... OS is a resource allocator Manages all resources Decides between conflicting requests for efficient and fair resource use ...
slides - Simon Fraser University
... OS is a resource allocator Manages all resources Decides between conflicting requests for efficient and fair resource use ...
... OS is a resource allocator Manages all resources Decides between conflicting requests for efficient and fair resource use ...
COS 318: Operating Systems OS Structures and System Calls Kai Li
... Application use these calls to manage memory at fine granularity When reaching the end, library asks the kernel for more ...
... Application use these calls to manage memory at fine granularity When reaching the end, library asks the kernel for more ...
QUIZ1
... priority than processor access to main memory. Why? 23. What is the difference between a batch system and an interactive system? When you pay your grocery bill by a credit card instead of cash, what system would you be using? What is the system objective to attain in a multiprogramming system? What ...
... priority than processor access to main memory. Why? 23. What is the difference between a batch system and an interactive system? When you pay your grocery bill by a credit card instead of cash, what system would you be using? What is the system objective to attain in a multiprogramming system? What ...
PowerPoint 2003 - FSU Computer Science
... How do we make different file systems work together, even across machines? How do we provide consistency, availability, and reliability to copies of a file across multiple machines? How do we handle very large data sets? ...
... How do we make different file systems work together, even across machines? How do we provide consistency, availability, and reliability to copies of a file across multiple machines? How do we handle very large data sets? ...
Operating System Services
... into memory and to run that program, end execution, either normally or abnormally (indicating error) I/O operations - A running program may require I/O, which may involve a file or an I/O device. File-system manipulation - The file system is of particular interest. Obviously, programs need to read a ...
... into memory and to run that program, end execution, either normally or abnormally (indicating error) I/O operations - A running program may require I/O, which may involve a file or an I/O device. File-system manipulation - The file system is of particular interest. Obviously, programs need to read a ...
Name (Please print legibly)
... c) Systems where all mutexes are numbered. A user cannot lock a mutex with a lower number, X, after they have locked a mutex with a larger number, Y > X. d) Systems of type (a) and (b) only e) Systems of type (a), (b) and (c) 19. A database system allows process A to kill process B if the latter hol ...
... c) Systems where all mutexes are numbered. A user cannot lock a mutex with a lower number, X, after they have locked a mutex with a larger number, Y > X. d) Systems of type (a) and (b) only e) Systems of type (a), (b) and (c) 19. A database system allows process A to kill process B if the latter hol ...
Operating Systems
... SystemArchitecture, OS Structure, OS Operations, Evolution of Operating Systems - Simple Batch, Multi programmed, time shared, Personal Computer, Parallel, Distributed Systems, Real-Time Systems, Special - Purpose Systems, Operating System services, user OS Interface, System Calls, Types of System C ...
... SystemArchitecture, OS Structure, OS Operations, Evolution of Operating Systems - Simple Batch, Multi programmed, time shared, Personal Computer, Parallel, Distributed Systems, Real-Time Systems, Special - Purpose Systems, Operating System services, user OS Interface, System Calls, Types of System C ...
slides.01.pdf
... construct a representant for that program during its execution ⇒ process. A process is an invention by an operating system: it is used as a placeholder for executing programs so that we can keep a precise account of how program execution is affecting the use of hardware and software resources. ...
... construct a representant for that program during its execution ⇒ process. A process is an invention by an operating system: it is used as a placeholder for executing programs so that we can keep a precise account of how program execution is affecting the use of hardware and software resources. ...
Chapter 3: Operating
... provide some means to perform I/O. File-system manipulation – program capability to read, write, create, and delete files. Communications – exchange of information between processes executing either on the same computer or on different systems tied together by a network. Implemented via shared memor ...
... provide some means to perform I/O. File-system manipulation – program capability to read, write, create, and delete files. Communications – exchange of information between processes executing either on the same computer or on different systems tied together by a network. Implemented via shared memor ...
Introduction - UW Courses Web Server
... This is a logical extension of multiprogramming. Each user has at least one separate program in memory. A program in execution is referred to as a process. Process switch occur so frequently that the users can interact with each program while it is running. File system allows users to access data an ...
... This is a logical extension of multiprogramming. Each user has at least one separate program in memory. A program in execution is referred to as a process. Process switch occur so frequently that the users can interact with each program while it is running. File system allows users to access data an ...
Fall 2008 Term - Computer Science
... 3. UNIX runs on virtually every computer ever made (including handheld computers, cell phones, watches, and Ipods). Although there are variations (different versions) of Unix, each provides fundamentally the same set of commands and tools. 4. Many variations of UNIX are open source. Thus, you can ob ...
... 3. UNIX runs on virtually every computer ever made (including handheld computers, cell phones, watches, and Ipods). Although there are variations (different versions) of Unix, each provides fundamentally the same set of commands and tools. 4. Many variations of UNIX are open source. Thus, you can ob ...
unit-1-The-UNIX-Operating-System
... that allow users and application programs to access system resources (e.g. the CPU, memory, disks, modems, printers, network cards etc.) in a safe, efficient and abstract way. For example, an OS ensures safe access to a printer by allowing only one application program to send data directly to the pr ...
... that allow users and application programs to access system resources (e.g. the CPU, memory, disks, modems, printers, network cards etc.) in a safe, efficient and abstract way. For example, an OS ensures safe access to a printer by allowing only one application program to send data directly to the pr ...
2.01
... loaders, linkage editors, and overlay-loaders, debugging systems for higher-level and machine language Communications - Provide the mechanism for creating virtual connections among processes, users, and computer systems Allow users to send messages to one another’s screens, browse web pages, sen ...
... loaders, linkage editors, and overlay-loaders, debugging systems for higher-level and machine language Communications - Provide the mechanism for creating virtual connections among processes, users, and computer systems Allow users to send messages to one another’s screens, browse web pages, sen ...
Slides(PowerPoint)
... their code, data and stack The total amount of memory used by currently running programs usually exceed the available main memory Solution: paging Temporarily unused pages are stored on disk (swapped out) When they are needed again, they are brought back into the memory (swapped in) OS Spring’03 ...
... their code, data and stack The total amount of memory used by currently running programs usually exceed the available main memory Solution: paging Temporarily unused pages are stored on disk (swapped out) When they are needed again, they are brought back into the memory (swapped in) OS Spring’03 ...
Introduction to OS - faculty.cs.tamu.edu
... •! Interrupts/Exceptions can be invoked by asynchronous events (I/O devices, timers, various errors) or can be software-generated (system ...
... •! Interrupts/Exceptions can be invoked by asynchronous events (I/O devices, timers, various errors) or can be software-generated (system ...
PPT - Duke Database Devils
... We discussed the need for protected contexts (“sandboxes”), even on single-user systems like your smartphone. The discussion touched on various dimensions of isolation for protected contexts (e.g., processes): •Fault isolation. One app or app instance (context or process) can fail independently of o ...
... We discussed the need for protected contexts (“sandboxes”), even on single-user systems like your smartphone. The discussion touched on various dimensions of isolation for protected contexts (e.g., processes): •Fault isolation. One app or app instance (context or process) can fail independently of o ...
System Calls
... – On system startup, privilege mode is set to 1, and the processor jumps to a well-known address – The operating system (OS) boot code resides at this address – The OS sets up the devices, loads applications, and resets the privilege bit before invoking the application ...
... – On system startup, privilege mode is set to 1, and the processor jumps to a well-known address – The operating system (OS) boot code resides at this address – The OS sets up the devices, loads applications, and resets the privilege bit before invoking the application ...
Operating Systems - Glyndwr University
... the power and stability of UNIX with the legendary elegance of the Macintosh. Mac OS X features a stunning new user interface called Aqua, making work and play on the Mac even more intuitive for new users, while providing powerful, customizable tools for professionals. At the foundation of Mac OS X ...
... the power and stability of UNIX with the legendary elegance of the Macintosh. Mac OS X features a stunning new user interface called Aqua, making work and play on the Mac even more intuitive for new users, while providing powerful, customizable tools for professionals. At the foundation of Mac OS X ...
Document
... – File-system manipulation – program capability to read, write, create, and delete files, (permission management) – Communications – exchange of information between processes executing either on the same computer or on different systems tied together by a network. Implemented via shared memory or me ...
... – File-system manipulation – program capability to read, write, create, and delete files, (permission management) – Communications – exchange of information between processes executing either on the same computer or on different systems tied together by a network. Implemented via shared memory or me ...
Operating- System Structures
... is kept only where it is needed and is accessible only within a defined and restricted area, so any bugs affecting that data must be limited to a specific module or layer. ...
... is kept only where it is needed and is accessible only within a defined and restricted area, so any bugs affecting that data must be limited to a specific module or layer. ...