MEMORY MANAGEMENT
... example, two users may attempt to edit the same file at the same time. If these accesses are not controlled, an error can occur. There must be some sort of mutual exclusion mechanism that permits only one routine at a time to perform an update against the file. The implementation of such mutual exc ...
... example, two users may attempt to edit the same file at the same time. If these accesses are not controlled, an error can occur. There must be some sort of mutual exclusion mechanism that permits only one routine at a time to perform an update against the file. The implementation of such mutual exc ...
15.a The Internal Operating System
... programs to be executed Deciding which process shall be executed next by the processor Swapping processes Deciding which process’s pending I/O request shall be handled by an available I/O device ...
... programs to be executed Deciding which process shall be executed next by the processor Swapping processes Deciding which process’s pending I/O request shall be handled by an available I/O device ...
No Slide Title
... existing one, by receiving a duplicated handle from another process, or by inheriting a handle from a parent process Each object is protected by an access control list ...
... existing one, by receiving a duplicated handle from another process, or by inheriting a handle from a parent process Each object is protected by an access control list ...
Lecture 1 - The Laboratory for Advanced Systems Research
... – Printer drivers make different printers look the same – Browser plug-ins to handle multi-media data CS 111 Spring 2015 ...
... – Printer drivers make different printers look the same – Browser plug-ins to handle multi-media data CS 111 Spring 2015 ...
Windows Server 2008 - Dr. Edward E. Boas, Jr., Professor
... Optimizing Software Installation • Consider the following when installing network server software: – Make sure there are enough licenses to match the number of users – Determine the network load created by software – Consider purchasing management software that can automatically update system-wide ...
... Optimizing Software Installation • Consider the following when installing network server software: – Make sure there are enough licenses to match the number of users – Determine the network load created by software – Consider purchasing management software that can automatically update system-wide ...
Efficient System-Enforced Deterministic Parallelism Yale University Abstract
... to allocate memory and what process IDs to assign children. This principle ensures that naming a resource reveals no shared state information other than what the application itself provided. Since implicitly shared namespaces often cause multiprocessor contention, designing system APIs to avoid this ...
... to allocate memory and what process IDs to assign children. This principle ensures that naming a resource reveals no shared state information other than what the application itself provided. Since implicitly shared namespaces often cause multiprocessor contention, designing system APIs to avoid this ...
PPT Chapter 14
... • The file system implements sharing and protection of files; the IOCS implements file operations • IOCS layers: access methods and physical IOCS • Data staggering techniques, disk attachment technologies, and redundant arrays of inexpensive disks improve I/O throughput • Disk scheduling performs th ...
... • The file system implements sharing and protection of files; the IOCS implements file operations • IOCS layers: access methods and physical IOCS • Data staggering techniques, disk attachment technologies, and redundant arrays of inexpensive disks improve I/O throughput • Disk scheduling performs th ...
Ceng 334 - Operating Systems
... • Clients : PCs, workstations running under Windows and UNIX operating systems • Servers : systems that run under UNIX and Windows NT • Internet and intranet networking (WWW) ...
... • Clients : PCs, workstations running under Windows and UNIX operating systems • Servers : systems that run under UNIX and Windows NT • Internet and intranet networking (WWW) ...
ch3
... Kernel provides minimal services: process, memory, communication Communication between user modules via message passing Benefits: ...
... Kernel provides minimal services: process, memory, communication Communication between user modules via message passing Benefits: ...
Name (Please print legibly)
... b) It is not possible to write 'pthread_exit' within main() c) 0 through 9999 d) Different output in different runs e) None of the above 15. Which of the following is NOT true for a system call? a) The OS handles the system calls. b) System calls are more heavyweight than normal function calls. c) I ...
... b) It is not possible to write 'pthread_exit' within main() c) 0 through 9999 d) Different output in different runs e) None of the above 15. Which of the following is NOT true for a system call? a) The OS handles the system calls. b) System calls are more heavyweight than normal function calls. c) I ...
PPT - Bilkent University Computer Engineering Department
... for talking to device. When OS boots up, it look to the entry and load the driver. ...
... for talking to device. When OS boots up, it look to the entry and load the driver. ...
Operating System Security
... Save the file password in a place in the system What if a thief gets access to this file ? All user accounts are compromised What can we do to prevent it ? Encrypt the file containing password file Seems a good idea but not enough There is a key used to encrypt the file How does the ...
... Save the file password in a place in the system What if a thief gets access to this file ? All user accounts are compromised What can we do to prevent it ? Encrypt the file containing password file Seems a good idea but not enough There is a key used to encrypt the file How does the ...
Solaris Symmetric Multiprocessing
... Windows 2000 Symmetric Multiprocessing Windows 2000 is a symmetric multiprocessing (SMP) operating system. There is no master processor. Windows 2000 incorporates several features that are crucial to its success as a multiprocessor operating system: •The ability to run operating system code on any ...
... Windows 2000 Symmetric Multiprocessing Windows 2000 is a symmetric multiprocessing (SMP) operating system. There is no master processor. Windows 2000 incorporates several features that are crucial to its success as a multiprocessor operating system: •The ability to run operating system code on any ...
System Requirements - Stone Profit Systems
... For stone and tile distributors / wholesalers / importers Stone Profit Systems (SPS) offers a comprehensive “internet based” Enterprise Management Solution that runs your Distribution or Fabrication business more efficiently and profitably. This integrated software system provides all the features r ...
... For stone and tile distributors / wholesalers / importers Stone Profit Systems (SPS) offers a comprehensive “internet based” Enterprise Management Solution that runs your Distribution or Fabrication business more efficiently and profitably. This integrated software system provides all the features r ...
Chapter 4 - people.vcu.edu
... • MS-DOS supports a single thread • UNIX supports multiple user processes but only supports one thread per process • Windows 2000, Solaris, Linux, Mach, and OS/2 support multiple threads ...
... • MS-DOS supports a single thread • UNIX supports multiple user processes but only supports one thread per process • Windows 2000, Solaris, Linux, Mach, and OS/2 support multiple threads ...
The Multikernel: A new OS architecture for scalable
... – Adapting the OS to run on hardware with new performance characteristics will not require extensive changes to the code base – Isolate the distributed communication algorithms from hardware implementation details – Enable late binding of both the protocol implementation & message transport ...
... – Adapting the OS to run on hardware with new performance characteristics will not require extensive changes to the code base – Isolate the distributed communication algorithms from hardware implementation details – Enable late binding of both the protocol implementation & message transport ...
No Slide Title
... from 16 to 31. The variable class contains threads having priorities from 0 to 15. Characteristics of 2000’s priority strategy. Trends to give very good response times to interactive threads that are using the mouse and windows. Enables I/O-bound threads to keep the I/O devices busy. Compl ...
... from 16 to 31. The variable class contains threads having priorities from 0 to 15. Characteristics of 2000’s priority strategy. Trends to give very good response times to interactive threads that are using the mouse and windows. Enables I/O-bound threads to keep the I/O devices busy. Compl ...
ch22
... message queue is used as intermediate storage, and the messages are copied from one process to the other. Second type avoids copying large messages by pointing to a shared memory section object created for the channel. Third method, called quick LPC was used by graphical display portions of the ...
... message queue is used as intermediate storage, and the messages are copied from one process to the other. Second type avoids copying large messages by pointing to a shared memory section object created for the channel. Third method, called quick LPC was used by graphical display portions of the ...
tasks, threads and processes, confused?
... [LIN94]. Modern cross-‐compilers for MCUs will prefer to pass parameters, return values, and place local variables in registers, where available [FUR96, HIT98, GHS99, GHS00]. Other general registers are then us ...
... [LIN94]. Modern cross-‐compilers for MCUs will prefer to pass parameters, return values, and place local variables in registers, where available [FUR96, HIT98, GHS99, GHS00]. Other general registers are then us ...
File-System
... Preserve the file until all references to it are deleted. Unix uses this approach for hard links by keeping a reference count in the file information block. ...
... Preserve the file until all references to it are deleted. Unix uses this approach for hard links by keeping a reference count in the file information block. ...