Course Syllabus
... 9. Describe how computing resources are used by application software and managed by system software. 10. Contrast kernel and user mode in an operating system. 11. Discuss the advantages and disadvantages of using interrupt processing. 12. Explain the use of a device list and driver I/O queue. 13. De ...
... 9. Describe how computing resources are used by application software and managed by system software. 10. Contrast kernel and user mode in an operating system. 11. Discuss the advantages and disadvantages of using interrupt processing. 12. Explain the use of a device list and driver I/O queue. 13. De ...
Stallings - Chapter 11
... All requests are in one queue when scan begins New requests are put in other queue during scan ...
... All requests are in one queue when scan begins New requests are put in other queue during scan ...
PowerPoint - School of Computer Science
... Controlled access to files System access Error detection and response Accounting ...
... Controlled access to files System access Error detection and response Accounting ...
ppt
... activities or performing work in parallel Can enable simpler program design Simplifies distribution ...
... activities or performing work in parallel Can enable simpler program design Simplifies distribution ...
Power Point XP - FSU Computer Science
... Can have long-running stateful handlers without freezes Scalable performance on multiple CPUs ...
... Can have long-running stateful handlers without freezes Scalable performance on multiple CPUs ...
Computer Network and Infrastructure
... Need to make scheduling decisions based on process sets Eg. If a larger number of employees log onto a system from department, we would like to see their performance degraded rather than degrading of all user performance. ...
... Need to make scheduling decisions based on process sets Eg. If a larger number of employees log onto a system from department, we would like to see their performance degraded rather than degrading of all user performance. ...
Principles of Operating System
... • Also includes information such as the priority of the process and whether the process is waiting for the completion of a particular I/O event ...
... • Also includes information such as the priority of the process and whether the process is waiting for the completion of a particular I/O event ...
Operating Systems (Linux), 27/10/08
... Peripherals – Hard disks (SATA, SCSI, SSD),DVD, Graphics, Sound, WiFi, etc. ...
... Peripherals – Hard disks (SATA, SCSI, SSD),DVD, Graphics, Sound, WiFi, etc. ...
ppt - UCI
... Threads provide a mechanism that allows sequential processes to make blocking system calls while also achieving parallelism. ...
... Threads provide a mechanism that allows sequential processes to make blocking system calls while also achieving parallelism. ...
(Silberschatz) I/O subsystems
... controllers from kernel Devices vary in many dimensions Character-stream or block Sequential or random-access ...
... controllers from kernel Devices vary in many dimensions Character-stream or block Sequential or random-access ...
lect8_9 - Computer and Information Sciences
... • Scheduling/execution- follows an execution path that may be interleaved with other processes • These two characteristics are treated independently by the operating system ...
... • Scheduling/execution- follows an execution path that may be interleaved with other processes • These two characteristics are treated independently by the operating system ...
Construction of a Highly Dependable Operating System,
... mechanism for starting and stopping processes, a scheduler, and interprocess communication, but ideally nothing else. Standard operating system functionality that is present in a monolithic kernel is moved to user space, and no longer runs at the highest privilege level. Different operating system o ...
... mechanism for starting and stopping processes, a scheduler, and interprocess communication, but ideally nothing else. Standard operating system functionality that is present in a monolithic kernel is moved to user space, and no longer runs at the highest privilege level. Different operating system o ...
Lecture OS - University of Wisconsin
... Allow a link to be associated with at most two processes Allow only one process at a time to execute a receive operation Allow the system to select arbitrarily the receiver • Sender is notified who the receiver was ...
... Allow a link to be associated with at most two processes Allow only one process at a time to execute a receive operation Allow the system to select arbitrarily the receiver • Sender is notified who the receiver was ...
presentation source
... • Message passing with blocking sends – To re-iterate, here’s the steps (from page 302): 1. Sender calls SendMessage() and blocks. 2. Receiver calls ReceiveMessage(). 3. Message is transferred directly from the sender’s buffer to the receiver’s buffer (no intermediate message queue is used). 4. Rec ...
... • Message passing with blocking sends – To re-iterate, here’s the steps (from page 302): 1. Sender calls SendMessage() and blocks. 2. Receiver calls ReceiveMessage(). 3. Message is transferred directly from the sender’s buffer to the receiver’s buffer (no intermediate message queue is used). 4. Rec ...
Processes
... • Recent CPU x86 virtualization instructions for a hypervisor to control ring0 hardware access – Create a new ”Ring -1” – Guest OS can run Ring0 operations natively without affecting other guests or the host OS – both Intel's "Vanderpool" (or VT) and AMD's "Pacifica" (AMD-V) ...
... • Recent CPU x86 virtualization instructions for a hypervisor to control ring0 hardware access – Create a new ”Ring -1” – Guest OS can run Ring0 operations natively without affecting other guests or the host OS – both Intel's "Vanderpool" (or VT) and AMD's "Pacifica" (AMD-V) ...
I/O Systems - McMaster Computing and Software
... The completion of the I/O at some future time is communicated to the application ...
... The completion of the I/O at some future time is communicated to the application ...
Module 4: Processes
... Useful and Important Concept: Process = program in execution A process is not the same as a program. Program is a passive entity, whereas process is active. Process consists of an executable program, associated data, and execution context. Modern (multiprogramming) operating systems are structured a ...
... Useful and Important Concept: Process = program in execution A process is not the same as a program. Program is a passive entity, whereas process is active. Process consists of an executable program, associated data, and execution context. Modern (multiprogramming) operating systems are structured a ...
CS311 - NUS School of Computing
... The functions of an operating system can best be understood by examining the evolution of computer usage. The elements of modern operating systems are those that were found to be necessary during this evolution. The first machines with real programs were developed in the 1940’s. In those days, the p ...
... The functions of an operating system can best be understood by examining the evolution of computer usage. The elements of modern operating systems are those that were found to be necessary during this evolution. The first machines with real programs were developed in the 1940’s. In those days, the p ...
In Windows 2003, the use of a larger TCPWindowSize
... features, platform and application support. Being used in heterogeneous environments can however lead to that the out-of-box operating system and NetBackup settings are not sufficient. NetBackup supports many platforms to run the master, media servers, and clients on, including Windows 2003 and Wind ...
... features, platform and application support. Being used in heterogeneous environments can however lead to that the out-of-box operating system and NetBackup settings are not sufficient. NetBackup supports many platforms to run the master, media servers, and clients on, including Windows 2003 and Wind ...
Operating Systems Essay Research Paper Operating Systems
... company’s and universities. These personal computers and required an operating system that was user friendly so that people with little computer knowledge was able to use it. In 1981, IBM was releasing a 16-bit personal computer, and required a more powerful operating system then the ones available ...
... company’s and universities. These personal computers and required an operating system that was user friendly so that people with little computer knowledge was able to use it. In 1981, IBM was releasing a 16-bit personal computer, and required a more powerful operating system then the ones available ...
Chapter 7 Deadlocks
... Link in Directory Tree Structure In modern OS, there are mechanism that allow a file to appear to be in different part of the tree structure than where it actually ...
... Link in Directory Tree Structure In modern OS, there are mechanism that allow a file to appear to be in different part of the tree structure than where it actually ...
Interfacing with the Operating System
... • The operating system provides system calls for opening, reading, writing and closing files. • When you open a file in "C" (or Java) you will be invoking the appropriate operating system call. • Opening a file involves locating it, and bringing into memory information necessary to access it. • Read ...
... • The operating system provides system calls for opening, reading, writing and closing files. • When you open a file in "C" (or Java) you will be invoking the appropriate operating system call. • Opening a file involves locating it, and bringing into memory information necessary to access it. • Read ...
The Styx Architecture for Distributed Systems
... A distributed system is constructed from a set of relatively independent components that form a unified, but geographically and functionally diverse entity. Examples include networked operating systems, Internet services, the national telephone switching system, and in general all the technology usi ...
... A distributed system is constructed from a set of relatively independent components that form a unified, but geographically and functionally diverse entity. Examples include networked operating systems, Internet services, the national telephone switching system, and in general all the technology usi ...