Distributed Systems
... servers; and it supports mechanisms required to access these resources, including naming, communication and scheduling The software for multiple CPU systems can be divided into three rough classes ...
... servers; and it supports mechanisms required to access these resources, including naming, communication and scheduling The software for multiple CPU systems can be divided into three rough classes ...
PDF slides
... storage for performance), spooling (the overlapping of output of one job with input of other jobs) ...
... storage for performance), spooling (the overlapping of output of one job with input of other jobs) ...
Chapter 1: Introduction
... Initialization data Process termination requires reclaim of any reusable resources Single-threaded process has one program counter specifying location of next instruction to execute Process executes instructions sequentially, one at a time, until ...
... Initialization data Process termination requires reclaim of any reusable resources Single-threaded process has one program counter specifying location of next instruction to execute Process executes instructions sequentially, one at a time, until ...
What is an Operating System?
... Mode bit provided by hardware" Provides ability to distinguish when system is running user code or kernel code" Some instructions designated as privileged, only executable in kernel mode" System call changes mode to kernel, return from call resets it to user" ...
... Mode bit provided by hardware" Provides ability to distinguish when system is running user code or kernel code" Some instructions designated as privileged, only executable in kernel mode" System call changes mode to kernel, return from call resets it to user" ...
Process Management (Cont.)
... Second type avoids copying large messages by pointing to a shared memory section object created for the channel. ...
... Second type avoids copying large messages by pointing to a shared memory section object created for the channel. ...
Chapter 2: Operating
... Chapter 2: Operating-System Structures Operating System Services User Operating System Interface System Calls Types of System Calls System Programs Operating System Design and Implementation Operating System Structure ...
... Chapter 2: Operating-System Structures Operating System Services User Operating System Interface System Calls Types of System Calls System Programs Operating System Design and Implementation Operating System Structure ...
Slide 1
... non-technical. Users have much invested in their application software; they will not adopt a new operating system that will not run their applications. Couloris,Dollimore and Kindberg Distributed Systems: Concepts & Design Edn. 4 , Pearson Education 2005 ...
... non-technical. Users have much invested in their application software; they will not adopt a new operating system that will not run their applications. Couloris,Dollimore and Kindberg Distributed Systems: Concepts & Design Edn. 4 , Pearson Education 2005 ...
PPT - EazyNotes
... Reparse points can be used to provide the functionality of UNIX mounts Reparse points can also be used to access files that have been moved to ...
... Reparse points can be used to provide the functionality of UNIX mounts Reparse points can also be used to access files that have been moved to ...
Appendix C: Windows 2000
... Reparse points can be used to provide the functionality of UNIX mounts Reparse points can also be used to access files that have been moved to ...
... Reparse points can be used to provide the functionality of UNIX mounts Reparse points can also be used to access files that have been moved to ...
Linux Kernel - Teacher Pages
... in 1991 by Linus Torvalds, with the major design goal of UNIX compatibility exclusively on PC platform It has been designed to run efficiently and reliably on common PC hardware, but also runs on a variety of other platforms The core Linux operating system kernel is entirely original, but it can ...
... in 1991 by Linus Torvalds, with the major design goal of UNIX compatibility exclusively on PC platform It has been designed to run efficiently and reliably on common PC hardware, but also runs on a variety of other platforms The core Linux operating system kernel is entirely original, but it can ...
Lecture 15
... computation/service is being offered by a distributed system • Make it look as if it is running entirely on a single machine – Usually the user’s own local machine ...
... computation/service is being offered by a distributed system • Make it look as if it is running entirely on a single machine – Usually the user’s own local machine ...
Toward Highly Available, Self-Healing, Adaptable, Grid
... – Parallel computers are seen as being user unfriendly – Parallel processing is not used on daily basis – Ordinary users have to be involved in programming activities that are of the operating system nature – Ordinary engineers, managers, etc do not have, and should not have, specialized knowledge n ...
... – Parallel computers are seen as being user unfriendly – Parallel processing is not used on daily basis – Ordinary users have to be involved in programming activities that are of the operating system nature – Ordinary engineers, managers, etc do not have, and should not have, specialized knowledge n ...
ch1-v2
... Migration of Integer A from Disk to Register Multitasking environments must be careful to use most recent value, no ...
... Migration of Integer A from Disk to Register Multitasking environments must be careful to use most recent value, no ...
Introduction - University of Pennsylvania
... another thread from the same process, or a thread from a different process. ...
... another thread from the same process, or a thread from a different process. ...
What is an Operating System?
... Typically system has many processes, some user, some operating system running concurrently on one or more CPUs Concurrency by multiplexing the CPUs among the processes / ...
... Typically system has many processes, some user, some operating system running concurrently on one or more CPUs Concurrency by multiplexing the CPUs among the processes / ...
Figure 1-3
... large computers to desktop-sized computers that have powerful operating systems • Device drivers can extend the native function of an operating system to provide access and control over different types of devices • The BIOS is a low-level program code that operates between the computer hardware and ...
... large computers to desktop-sized computers that have powerful operating systems • Device drivers can extend the native function of an operating system to provide access and control over different types of devices • The BIOS is a low-level program code that operates between the computer hardware and ...
No Slide Title
... Each page directory entry points to a page table which contains 1024 page table entries (PTEs) of size 4 bytes. ...
... Each page directory entry points to a page table which contains 1024 page table entries (PTEs) of size 4 bytes. ...
ch22
... This property is used when translating a virtual address pointer to a bye address in physical memory A page can be in one of six states: valid, zeroed, free standby, modified and bad ...
... This property is used when translating a virtual address pointer to a bye address in physical memory A page can be in one of six states: valid, zeroed, free standby, modified and bad ...
Chapter 13 I/O Hardware
... Block devices include disk drives Commands include read, write, seek Raw I/O or file-system access Memory-mapped file access possible Character devices include keyboards, mice, serial ports Commands include get, put Libraries layered on top allow line editing ...
... Block devices include disk drives Commands include read, write, seek Raw I/O or file-system access Memory-mapped file access possible Character devices include keyboards, mice, serial ports Commands include get, put Libraries layered on top allow line editing ...
2.01 - Computer Science Building, Colorado State University
... Many systems now servers, responding to requests generated by clients Compute-server provides an interface to client to request ...
... Many systems now servers, responding to requests generated by clients Compute-server provides an interface to client to request ...
Total cost of ownership – Linux vs. QNX realtime operating system
... A significant issue impacting time-to-market is the availability and quality of device drivers. Ideally, the hardware vendor would create, maintain and support high quality drivers for their hardware. But unfortunately, Linux’s licensing model has a direct (and negative) impact here. Leading-edge ha ...
... A significant issue impacting time-to-market is the availability and quality of device drivers. Ideally, the hardware vendor would create, maintain and support high quality drivers for their hardware. But unfortunately, Linux’s licensing model has a direct (and negative) impact here. Leading-edge ha ...
Embedded Operating Systems and Linux
... • 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 ROM. • It will not usually have any of the normal peripherals such as a keyboard, monitor, serial con ...
... • 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 ROM. • It will not usually have any of the normal peripherals such as a keyboard, monitor, serial con ...
Linus Torvalds - cs.helsinki.fi
... it’s even usable (though may not be depending on what you want), and I am willing to put out the sources for wider distribution. It is just version 0.02 (+1 (very small) patch already), but I’ve successfully run bash/GCC/gnumake/gnu-sed/compress etc under it. Sources for this pet project of mine can ...
... it’s even usable (though may not be depending on what you want), and I am willing to put out the sources for wider distribution. It is just version 0.02 (+1 (very small) patch already), but I’ve successfully run bash/GCC/gnumake/gnu-sed/compress etc under it. Sources for this pet project of mine can ...
H 10.1. File-System Interface
... locates the other file attributes. It may take more than a kilobyte to record this information for each ...
... locates the other file attributes. It may take more than a kilobyte to record this information for each ...
Plan 9 from Bell Labs
.png?width=300)
Plan 9 from Bell Labs is a distributed operating system, originally developed by the Computing Sciences Research Center at Bell Labs between the mid-1980s and 2002. It takes some of the principles of Unix, developed in the same research group, but extends these to a networked environment with graphics terminals.In Plan 9, virtually all computing resources, including files, network connections, and peripheral devices, are represented through the file system rather than specialized interfaces. A unified network protocol called 9P ties a network of computers running Plan 9 together, allowing them to share all resources so represented.The name Plan 9 from Bell Labs is a reference to the Ed Wood 1959 cult science fiction Z-movie Plan 9 from Outer Space. Also, Glenda, the Plan 9 Bunny, is presumably a reference to Wood's film Glen or Glenda. The system continues to be used and developed by operating system researchers and hobbyists.