Computer Network and Infrastructure
... A program in execution An instance of a program running on a computer The entity that can be assigned to and executed on a processor A unit of activity characterized by a single sequential thread of execution, a current state, and an associated set of system resources ...
... A program in execution An instance of a program running on a computer The entity that can be assigned to and executed on a processor A unit of activity characterized by a single sequential thread of execution, a current state, and an associated set of system resources ...
file (1.5 MB, ppt)
... When a program is started, it is loaded from disk into RAM. A “running” program is called a process Processes and files have an owner and a group, and they protected from unauthorized access UNIX supports a hierarchical directory structure Files have a location within the directory hierarchy ...
... When a program is started, it is loaded from disk into RAM. A “running” program is called a process Processes and files have an owner and a group, and they protected from unauthorized access UNIX supports a hierarchical directory structure Files have a location within the directory hierarchy ...
MODERN OPERATING SYSTEMS Third Edition ANDREW S
... One way to solve priority inversion is to use the priority ceiling protocol, which gives each shared resource a predefined priority ceiling. When a task acquires a shared resource, the task is hoisted (has its priority temporarily raised) to the priority ceiling of that resource. The priority ceilin ...
... One way to solve priority inversion is to use the priority ceiling protocol, which gives each shared resource a predefined priority ceiling. When a task acquires a shared resource, the task is hoisted (has its priority temporarily raised) to the priority ceiling of that resource. The priority ceilin ...
Chapter 11 I/O Management and Disk Scheduling
... – process suspension on an interrupt (like interrupt-driven I/O or DMA) ...
... – process suspension on an interrupt (like interrupt-driven I/O or DMA) ...
Chapter 10 File System Interface
... to remain in existence so timestamps are preserved as well as protections, etc. while deleting all data. ...
... to remain in existence so timestamps are preserved as well as protections, etc. while deleting all data. ...
ch11file_system_implementation
... Volume Control Block (called a super block in UFS and a Master File Table in NTFS file systems; contains things like the number of blocks, size of blocks, etc.) ...
... Volume Control Block (called a super block in UFS and a Master File Table in NTFS file systems; contains things like the number of blocks, size of blocks, etc.) ...
Structures - IDA.LiU.se - Linköpings universitet
... ensure that an incorrect program cannot cause other programs to execute incorrectly. § Hardware support (mode bit) to differentiate between at least two modes of operations. ...
... ensure that an incorrect program cannot cause other programs to execute incorrectly. § Hardware support (mode bit) to differentiate between at least two modes of operations. ...
2.01 - Suan Dusit Rajabhat University
... 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. ...
Abstract- This paper presents an introduction to the technology of
... processing load or user load by using a central server or router, that assigns the load to different servers An initial or central server can determine the load of the other servers and send the new request to the least loaded server. Or the assignment can be based on user preference information ...
... processing load or user load by using a central server or router, that assigns the load to different servers An initial or central server can determine the load of the other servers and send the new request to the least loaded server. Or the assignment can be based on user preference information ...
Abstract View of System Components
... contain multiple threads of control. • Each thread, is defined by its thread ID, program counter, register set & stack (for temporary data). • A thread shares with other threads of the same process its code section, data section, open files & other operating system resources. ...
... contain multiple threads of control. • Each thread, is defined by its thread ID, program counter, register set & stack (for temporary data). • A thread shares with other threads of the same process its code section, data section, open files & other operating system resources. ...
Operating-System Structures Chapter 2
... Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them Many types of resources - Some (such as CPU cycles,mainmemory, and file storage) may have special allocation code, others (such as I/O devices) may have general request and ...
... Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them Many types of resources - Some (such as CPU cycles,mainmemory, and file storage) may have special allocation code, others (such as I/O devices) may have general request and ...
Operating-System Structures
... system call Exact type and amount of information vary according to OS and call Three general methods used to pass parameters to the OS Simplest: pass the parameters in registers In some cases, may be more parameters than registers Parameters stored in a block, or table, in memory, and addres ...
... system call Exact type and amount of information vary according to OS and call Three general methods used to pass parameters to the OS Simplest: pass the parameters in registers In some cases, may be more parameters than registers Parameters stored in a block, or table, in memory, and addres ...
ppt
... I/O system calls encapsulate device behaviors in generic classes Device-driver layer hides differences among I/O controllers from kernel ...
... I/O system calls encapsulate device behaviors in generic classes Device-driver layer hides differences among I/O controllers from kernel ...
Chapter 13: I/O Systems
... I/O system calls encapsulate device behaviors in generic classes Device-driver layer hides differences among I/O controllers from kernel ...
... I/O system calls encapsulate device behaviors in generic classes Device-driver layer hides differences among I/O controllers from kernel ...
Chapter 2 - cse.sc.edu
... File-system manipulation - The file system is of particular interest. Programs need to read and write files and directories, create and delete them, search them, list file Information, permission management. ...
... File-system manipulation - The file system is of particular interest. Programs need to read and write files and directories, create and delete them, search them, list file Information, permission management. ...
Chapter 2
... File-system manipulation - The file system is of particular interest. Programs need to read and write files and directories, create and delete them, search them, list file Information, permission management. ...
... File-system manipulation - The file system is of particular interest. Programs need to read and write files and directories, create and delete them, search them, list file Information, permission management. ...
What is an Operating System? - University of Central Florida
... hardware, operating system, software) Information in use copied from slower to faster storage temporarily Faster storage (cache) checked first to determine if information is ...
... hardware, operating system, software) Information in use copied from slower to faster storage temporarily Faster storage (cache) checked first to determine if information is ...
Abstract View of System Components
... OS provides uniform, logical view of information storage • Abstracts physical properties to logical storage unit - file • Each medium is controlled by device (i.e., disk drive, tape ...
... OS provides uniform, logical view of information storage • Abstracts physical properties to logical storage unit - file • Each medium is controlled by device (i.e., disk drive, tape ...
Multithreaded Programming
... To examine issues related to multithreaded programming To cover operating system support for threads in Windows and Linux ...
... To examine issues related to multithreaded programming To cover operating system support for threads in Windows and Linux ...
Final Review Questions
... They generally consume more power than traditional hard disks. B. They have the same characteristics as magnetic hard disks, but can be more reliable. C. They are generally more expensive per megabyte than traditional hard disks. D. They have no seek time or latency. A. ...
... They generally consume more power than traditional hard disks. B. They have the same characteristics as magnetic hard disks, but can be more reliable. C. They are generally more expensive per megabyte than traditional hard disks. D. They have no seek time or latency. A. ...
Sistemas Operativos
... – The program code, also called text section – Current activity including program counter, processor registers – Stack containing temporary data • Function parameters, return addresses, local variables – Data section containing global variables – Heap containing memory dynamically allocated during r ...
... – The program code, also called text section – Current activity including program counter, processor registers – Stack containing temporary data • Function parameters, return addresses, local variables – Data section containing global variables – Heap containing memory dynamically allocated during r ...
Module 6: CPU Scheduling
... Round Robin (RR) Scheduling Each process gets a small unit of CPU time (time quantum), ...
... Round Robin (RR) Scheduling Each process gets a small unit of CPU time (time quantum), ...
Operating System Structure
... File-system manipulation - The file system is of particular interest. Programs need to read and write files and directories, create and delete them, search them, list file Information, permission management. ...
... File-system manipulation - The file system is of particular interest. Programs need to read and write files and directories, create and delete them, search them, list file Information, permission management. ...