Chapter 1 - Introduction
... It also provides a basis for running application programs and acts as an intermediary between the computer user and the computer hardware Some operating systems are designed to be convenient, others are designed to be efficient, and still others are a combination of both Mainframe operating system ...
... It also provides a basis for running application programs and acts as an intermediary between the computer user and the computer hardware Some operating systems are designed to be convenient, others are designed to be efficient, and still others are a combination of both Mainframe operating system ...
Lecture #14: Deadlocks
... defeats interleaving, creates long waits, cannot predict all resource needs ...
... defeats interleaving, creates long waits, cannot predict all resource needs ...
slides
... • File-system manipulation – program capability to read, write, create, and delete files. • Communications – exchange of information between processes executing either on the same computer or on different systems tied together by a network. Implemented via shared memory or message passing. • Error d ...
... • File-system manipulation – program capability to read, write, create, and delete files. • Communications – exchange of information between processes executing either on the same computer or on different systems tied together by a network. Implemented via shared memory or message passing. • Error d ...
ppt
... • A general purpose Operating System must perform well on an increasingly wide range of system designs. • Hardware has different performance characteristics • Unlike large high performance systems, you don’t know what hardware pieces you’ll be using so you cannot optimize for specific hardware at th ...
... • A general purpose Operating System must perform well on an increasingly wide range of system designs. • Hardware has different performance characteristics • Unlike large high performance systems, you don’t know what hardware pieces you’ll be using so you cannot optimize for specific hardware at th ...
ch13
... To cope with device speed mismatch To cope with device transfer size mismatch To maintain “copy semantics” ...
... To cope with device speed mismatch To cope with device transfer size mismatch To maintain “copy semantics” ...
CS533 Concepts of Operating Systems
... The Linux server maps physical memory into its address space, and acts as the pager for any user processes it creates. The Server cannot directly access the hardware page tables, and must maintain logical pages in its own address space. ...
... The Linux server maps physical memory into its address space, and acts as the pager for any user processes it creates. The Server cannot directly access the hardware page tables, and must maintain logical pages in its own address space. ...
FAST-OS BOF SC 04 - Department of Computer Science
... • Leverage Advantages of Full Featured OS & Single System Image – Applications on these extreme-scale systems will benefit from extensive services and interfaces; managing these complex systems will require an ...
... • Leverage Advantages of Full Featured OS & Single System Image – Applications on these extreme-scale systems will benefit from extensive services and interfaces; managing these complex systems will require an ...
introduction, means of i/o
... Interrupts are quite similar to procedures or function because it is also another form temporary execution transfer, but there some differences as well. Note that when procedures are invoked by their names which represents their addresses is specified whereas in case of interrupts their number is sp ...
... Interrupts are quite similar to procedures or function because it is also another form temporary execution transfer, but there some differences as well. Note that when procedures are invoked by their names which represents their addresses is specified whereas in case of interrupts their number is sp ...
1.01 - University of South Florida
... User goals – convenient to use, easy to learn, reliable, safe, and fast ...
... User goals – convenient to use, easy to learn, reliable, safe, and fast ...
Module 1: Introduction What is an Operating System?
... Time-Sharing Systems– Interactive Computing ...
... Time-Sharing Systems– Interactive Computing ...
Operating systems Operating systems Protected Objects
... • Each page in the memory is mapped to a frame. • This mapping is maintained in the page table. • Each process (program) has its own page table. • Access rights to the different pages is also kept in the page tables. • Pages can be shared between different programs. ...
... • Each page in the memory is mapped to a frame. • This mapping is maintained in the page table. • Each process (program) has its own page table. • Access rights to the different pages is also kept in the page tables. • Pages can be shared between different programs. ...
Operating Systems Introduction Operating Systems course (I
... resource, the moment of allocation and amount of allocated items, ...
... resource, the moment of allocation and amount of allocated items, ...
Chapter 4.pdf
... Compared to processes, threads take less time to create or terminate • Switching between two threads within the same process takes less time than a process switch: thread switching happens inside a process and is much faster • Threads can communicate with each other without invoking the kernel (sinc ...
... Compared to processes, threads take less time to create or terminate • Switching between two threads within the same process takes less time than a process switch: thread switching happens inside a process and is much faster • Threads can communicate with each other without invoking the kernel (sinc ...
Operating Systems Dr. Barnawi
... jobs in memory. Multiprogramming system only assign resources to a job when it is available. • Multiprogramming brought the idea of time sharing where resources are shared between ...
... jobs in memory. Multiprogramming system only assign resources to a job when it is available. • Multiprogramming brought the idea of time sharing where resources are shared between ...
Operating Systems
... jobs in memory. Multiprogramming system only assign resources to a job when it is available. • Multiprogramming brought the idea of time sharing where resources are shared between ...
... jobs in memory. Multiprogramming system only assign resources to a job when it is available. • Multiprogramming brought the idea of time sharing where resources are shared between ...
Computer Network and Infrastructure
... these processors share same main memory and I/O facilities All processors can perform the same functions Distributed operating systems provides the illusion of a single main memory and single secondary memory space used for distributed file system ...
... these processors share same main memory and I/O facilities All processors can perform the same functions Distributed operating systems provides the illusion of a single main memory and single secondary memory space used for distributed file system ...
A Tour of Computer Systems - Computer Systems: A Programmer`s
... • Preprocessing phase. The preprocessor (cpp) modifies the original C program according to directives that begin with the # character. For example, the #include command in line 1 of
hello.c tells the preprocessor to read the contents of the system header file stdio.h and insert it
directly ...
... • Preprocessing phase. The preprocessor (cpp) modifies the original C program according to directives that begin with the # character. For example, the #include
Module 4: Processes
... Producer writes to one end (the write-end of the pipe) Consumer reads from the other end (the read-end of the pipe) Ordinary pipes are therefore unidirectional Require parent-child relationship between communicating processes ...
... Producer writes to one end (the write-end of the pipe) Consumer reads from the other end (the read-end of the pipe) Ordinary pipes are therefore unidirectional Require parent-child relationship between communicating processes ...
Module 4: Processes
... Producer writes to one end (the write-end of the pipe) Consumer reads from the other end (the read-end of the pipe) Ordinary pipes are therefore unidirectional Require parent-child relationship between communicating processes ...
... Producer writes to one end (the write-end of the pipe) Consumer reads from the other end (the read-end of the pipe) Ordinary pipes are therefore unidirectional Require parent-child relationship between communicating processes ...
Social Trust - IEEE ICSC 2017
... OS, architecture and applications should become socially-aware; OSN users assign/have inferred trust values for friends and objects; Continuum trusted-untrusted. ...
... OS, architecture and applications should become socially-aware; OSN users assign/have inferred trust values for friends and objects; Continuum trusted-untrusted. ...
Process
... using the wait()system call. The call returns status information and the pid of the terminated process pid = wait(&status); If no parent waiting (did not invoke wait()) process is a zombie If parent terminated without invoking wait , process is an orphan ...
... using the wait()system call. The call returns status information and the pid of the terminated process pid = wait(&status); If no parent waiting (did not invoke wait()) process is a zombie If parent terminated without invoking wait , process is an orphan ...
What is an Operating System?
... System call – request to the operating system to allow user to wait for I/O completion. Device-status table contains entry for each I/O device indicating its type, address, and state. Operating system indexes into I/O device table to determine device status and to modify table entry to include ...
... System call – request to the operating system to allow user to wait for I/O completion. Device-status table contains entry for each I/O device indicating its type, address, and state. Operating system indexes into I/O device table to determine device status and to modify table entry to include ...