ppt
... Can simulate last two with first method by inserting appropriate control characters Who decides: Operating system ...
... Can simulate last two with first method by inserting appropriate control characters Who decides: Operating system ...
Chapter 9: File-System Interface
... Can simulate last two with first method by inserting appropriate control characters Who decides: Operating system Program / programmer ...
... Can simulate last two with first method by inserting appropriate control characters Who decides: Operating system Program / programmer ...
Module 4: Processes
... An operating system executes a variety of programs: Batch system – jobs ...
... An operating system executes a variety of programs: Batch system – jobs ...
Chapter 9 Linux Installation Procedures
... • Linux systems will have different services running on them. If the system is going to be a workstation, Web server, or mail server the appropriate services will need to be installed on the system. • Select and configure the system to use the proper boot loader • Linux uses one of two programs: – L ...
... • Linux systems will have different services running on them. If the system is going to be a workstation, Web server, or mail server the appropriate services will need to be installed on the system. • Select and configure the system to use the proper boot loader • Linux uses one of two programs: – L ...
An Operating System for Multicore and Clouds (Mechanisms and
... Managing software and hardware faults is another common challenge for future multicore and cloud systems. ...
... Managing software and hardware faults is another common challenge for future multicore and cloud systems. ...
Chapter 9 Linux Installation Procedures
... • The Root account in Linux is also known as the superuser or system administrator account. • This account is mandatory. During installation the user will be prompted to enter the root user password twice to protect against typing errors. • There are advantages and disadvantages in creating user acc ...
... • The Root account in Linux is also known as the superuser or system administrator account. • This account is mandatory. During installation the user will be prompted to enter the root user password twice to protect against typing errors. • There are advantages and disadvantages in creating user acc ...
PPT
... 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, send electronic-mail messages, log in remotely, transfer files from one machine to another ...
... 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, send electronic-mail messages, log in remotely, transfer files from one machine to another ...
ch1_OS
... memory to several jobs. CPU scheduling – the system must choose among several jobs ready to run. Allocation of devices. ...
... memory to several jobs. CPU scheduling – the system must choose among several jobs ready to run. Allocation of devices. ...
Course Descriptions (CSE)-2010
... Introduction to MS WORD: Introduction to MS Word, document creation, editing, printing and saving, spell check and mail merge. Process text by using text processor package such as MS Word, Use of computer using windows operating system. C++ Introduction: Introduction to C++ Language, structure of C+ ...
... Introduction to MS WORD: Introduction to MS Word, document creation, editing, printing and saving, spell check and mail merge. Process text by using text processor package such as MS Word, Use of computer using windows operating system. C++ Introduction: Introduction to C++ Language, structure of C+ ...
PPT Chapter 14
... – Shortest seek time first (SSTF) scheduling – SCAN scheduling • Scan: Disk heads moved from one end of platter to another • A scan is followed by a reverse scan • Look scheduling: a variant that starts reverse scan when no more disk operations can be serviced in a scan ...
... – Shortest seek time first (SSTF) scheduling – SCAN scheduling • Scan: Disk heads moved from one end of platter to another • A scan is followed by a reverse scan • Look scheduling: a variant that starts reverse scan when no more disk operations can be serviced in a scan ...
Chapter 9
... priority levels • Adjustment factor used to keep process in its assigned band (decreasing order of priority): – Swapper – Block I/O device control – File manipulation – Character I/O device control – User processes ...
... priority levels • Adjustment factor used to keep process in its assigned band (decreasing order of priority): – Swapper – Block I/O device control – File manipulation – Character I/O device control – User processes ...
Chapter 10 Exercises and Answers
... this process moves from one state to another. A new process begins in the new state. When the process has no bars to its execution, it moves into the ready state. It waits in the ready state until it gets time in the running state. It runs for a while and issues a command for file input. The process ...
... this process moves from one state to another. A new process begins in the new state. When the process has no bars to its execution, it moves into the ready state. It waits in the ready state until it gets time in the running state. It runs for a while and issues a command for file input. The process ...
Operating Systems
... Basic tasks: provide user interface, manage processes, manage resources, provide security – Two interfaces: GUI and console window – Supervise program in execution (process) Connecting with Computer Science, 2e ...
... Basic tasks: provide user interface, manage processes, manage resources, provide security – Two interfaces: GUI and console window – Supervise program in execution (process) Connecting with Computer Science, 2e ...
Real Time Operating System Chapter 11
... • Ready means gets a signal for which it is waiting or gets a message for which it is waiting or time out when its waiting-period is over ...
... • Ready means gets a signal for which it is waiting or gets a message for which it is waiting or time out when its waiting-period is over ...
Mod_2-Ch3_Ch4
... the various processes in such a way that the CPU and other active resources are maintained busy the longest period possible. • If there is only one CPU in the system, then only one process can be in execution at any given time. • The other processes are ready, waiting for CPU service. Processes also ...
... the various processes in such a way that the CPU and other active resources are maintained busy the longest period possible. • If there is only one CPU in the system, then only one process can be in execution at any given time. • The other processes are ready, waiting for CPU service. Processes also ...
Commercial Real-Time Operating Systems – An
... Backward compatibility to previous verison features for exception handling and and template support ...
... Backward compatibility to previous verison features for exception handling and and template support ...
Operating-System Structures
... Similarity between files and I/O devices results in similar device system calls (some OS even merges two into a combined filedevice structure): request device, release device read, write, reposition get device attributes, set device attributes logically attach or detach devices ...
... Similarity between files and I/O devices results in similar device system calls (some OS even merges two into a combined filedevice structure): request device, release device read, write, reposition get device attributes, set device attributes logically attach or detach devices ...
Today: Protection Protection
... – Interpretation of user-defined rights performed solely by user's program; system provides access protection for use of these rights. ...
... – Interpretation of user-defined rights performed solely by user's program; system provides access protection for use of these rights. ...
No Slide Title
... Linux uses two techniques to protect critical sections: 1. Normal kernel code is nonpreemptible – when a time interrupt is received while a process is executing a kernel system service routine, the kernel’s need_resched flag is set so that the scheduler will run once the system call has completed ...
... Linux uses two techniques to protect critical sections: 1. Normal kernel code is nonpreemptible – when a time interrupt is received while a process is executing a kernel system service routine, the kernel’s need_resched flag is set so that the scheduler will run once the system call has completed ...
Figure 15.1 A distributed multimedia system
... into thinking that the collection of machines is simply an old-fashioned time-sharing system, instead of a collection of independent components. The transparency is generally preferable for any DS. It also should be considered together with other issues such as performance. ...
... into thinking that the collection of machines is simply an old-fashioned time-sharing system, instead of a collection of independent components. The transparency is generally preferable for any DS. It also should be considered together with other issues such as performance. ...
... of metadata, disk blocks, and buffer cache pages, all of which are guarded by access control on high-level file objects. While exokernels allow direct access to low-level resources, exokernel systems must be able to provide UNIX-like protection, including access control on high-level objects where r ...
ICS 143 - Introduction to Operating Systems
... Allows overlap - I/O of one job with computation of another. Introduces notion of a job pool that allows OS choose next job to run so as to increase CPU utilization. ...
... Allows overlap - I/O of one job with computation of another. Introduces notion of a job pool that allows OS choose next job to run so as to increase CPU utilization. ...
Processes - Kent State University
... system call – asking the OS to delete it • parent is notified • process’ resources are deallocated by operating system parent may terminate execution of a child process - abort() system call • possible reasons task assigned to child is no longer required child exceeded allocated resources • if p ...
... system call – asking the OS to delete it • parent is notified • process’ resources are deallocated by operating system parent may terminate execution of a child process - abort() system call • possible reasons task assigned to child is no longer required child exceeded allocated resources • if p ...