The Mach System Abraham Silberschatz, Peter Baer Galvin, Greg
... Passes messages by moving memory pointers to shared memory objects where possible – avoids object copy Uses virtual memory re-mapping to transfer large messages – also known as virtual copy or copy-on-write. Memory management is based on the use of memory objects Memory objects may reside on remote ...
... Passes messages by moving memory pointers to shared memory objects where possible – avoids object copy Uses virtual memory re-mapping to transfer large messages – also known as virtual copy or copy-on-write. Memory management is based on the use of memory objects Memory objects may reside on remote ...
Multiprocessor System-on-Chip(MPSoC)
... • Low power/energy operation. • Standards committees often provide reference implementations ( very single threaded). ...
... • Low power/energy operation. • Standards committees often provide reference implementations ( very single threaded). ...
Introduction - Faruk Hadziomerovic
... History of Operating Systems • First generation 1945 - 1955 – vacuum tubes, plug boards • Second generation 1955 - 1965 – transistors, batch systems • Third generation 1965 – 1980 – ICs and multiprogramming • Fourth generation 1980 – present – personal computers ...
... History of Operating Systems • First generation 1945 - 1955 – vacuum tubes, plug boards • Second generation 1955 - 1965 – transistors, batch systems • Third generation 1965 – 1980 – ICs and multiprogramming • Fourth generation 1980 – present – personal computers ...
Introduction to OS - faculty.cs.tamu.edu
... Time Sharing (mid 1960s on)! •! OS interleaves execution of multiple user programs with time quantum! –! CTSS (1961): time quantum 0.2 sec! •! User returns to own the machine! •! New aspects and issues:! –! On-line file systems! –! resource protection! –! virtual memory! –! sophisticated process sch ...
... Time Sharing (mid 1960s on)! •! OS interleaves execution of multiple user programs with time quantum! –! CTSS (1961): time quantum 0.2 sec! •! User returns to own the machine! •! New aspects and issues:! –! On-line file systems! –! resource protection! –! virtual memory! –! sophisticated process sch ...
Programming the application
... How does HCI affect of the programmer? Advances in coding have elevated programming hardware specific interaction-technique specific. Layers of development tools • windowing systems • interaction toolkits • user interface management systems ...
... How does HCI affect of the programmer? Advances in coding have elevated programming hardware specific interaction-technique specific. Layers of development tools • windowing systems • interaction toolkits • user interface management systems ...
Document
... How does HCI affect of the programmer? Advances in coding have elevated programming hardware specific interaction-technique specific. Layers of development tools • windowing systems • interaction toolkits • user interface management systems ...
... How does HCI affect of the programmer? Advances in coding have elevated programming hardware specific interaction-technique specific. Layers of development tools • windowing systems • interaction toolkits • user interface management systems ...
chap10
... How does HCI affect of the programmer? Advances in coding have elevated programming hardware specific interaction-technique specific. Layers of development tools • windowing systems • interaction toolkits • user interface management systems ...
... How does HCI affect of the programmer? Advances in coding have elevated programming hardware specific interaction-technique specific. Layers of development tools • windowing systems • interaction toolkits • user interface management systems ...
Document
... • When multiple applications are active at the same time, it is necessary to protect the data, I/O use, and other resource use of each application from the others. • The OS was developed to provide a convenient, featurerich, secure, and consistent interface for applications to use. The OS is a laye ...
... • When multiple applications are active at the same time, it is necessary to protect the data, I/O use, and other resource use of each application from the others. • The OS was developed to provide a convenient, featurerich, secure, and consistent interface for applications to use. The OS is a laye ...
dsuii
... correctly in the widest possible range of circumstances and in the face of many possible difficulties and threats. Difficulties and threats for distributed systems • Here are some of the problems that the designers of Distributed systems face. Widely varying modes of use: The component parts of syst ...
... correctly in the widest possible range of circumstances and in the face of many possible difficulties and threats. Difficulties and threats for distributed systems • Here are some of the problems that the designers of Distributed systems face. Widely varying modes of use: The component parts of syst ...
The Multikernel: A new OS architecture for scalable
... • Completely event-driven, single-threaded, nonpreemptable ...
... • Completely event-driven, single-threaded, nonpreemptable ...
View File
... – Accounting - To keep track of which users use how much and what kinds of computer resources – Protection and security - The owners of information stored in a multiuser or networked computer system may want to control use of that information, concurrent processes should not interfere with each othe ...
... – Accounting - To keep track of which users use how much and what kinds of computer resources – Protection and security - The owners of information stored in a multiuser or networked computer system may want to control use of that information, concurrent processes should not interfere with each othe ...
ppt
... What is the motivation for using message-passing for inter-module communication? CS533 - Concepts of Operating Systems ...
... What is the motivation for using message-passing for inter-module communication? CS533 - Concepts of Operating Systems ...
STATE UNIVERSITY OF NEW YORK COLLEGE OF TECHNOLOGY COURSE OUTLINE
... An Introduction to Hardware A. Introduction to Digital Circuits 1. Number systems: decimal, binary, hexadecimal, conversions 2. Basic digital circuit elements 3. Basic digital logic gates B. Computer Architecture 1. CPU and chipset 2. BIOS 3. Memory systems 4. Permanent storage systems 5. Common I/O ...
... An Introduction to Hardware A. Introduction to Digital Circuits 1. Number systems: decimal, binary, hexadecimal, conversions 2. Basic digital circuit elements 3. Basic digital logic gates B. Computer Architecture 1. CPU and chipset 2. BIOS 3. Memory systems 4. Permanent storage systems 5. Common I/O ...
Operating Systems 2
... Components of an operating system Any access to a file is obtained at the discretion of the file manager. The procedure begins by requesting that the file manager grant access to the file through procedure known as opening the file. If the file manager approves the requested access, it provides ...
... Components of an operating system Any access to a file is obtained at the discretion of the file manager. The procedure begins by requesting that the file manager grant access to the file through procedure known as opening the file. If the file manager approves the requested access, it provides ...
Introduction - Department of Computer and Information Science and
... programs implementing (part of) the userinterface level • A server machine containing the rest, ...
... programs implementing (part of) the userinterface level • A server machine containing the rest, ...
Operating Systems
... Operating system shells originally consisted of a command line interaction style: the user types individual commands which the computer then executes Today, most users expect a graphical shell, where input is expected not only from a keyboard but also a pointing device such as a mouse In most operat ...
... Operating system shells originally consisted of a command line interaction style: the user types individual commands which the computer then executes Today, most users expect a graphical shell, where input is expected not only from a keyboard but also a pointing device such as a mouse In most operat ...
Tutorial 2: Question 1: The services and functions provided by an
... What are the five major activities of an operating systemin regard to file management? Question 5: What are the advantages and disadvantages of using the same system call interface for manipulating both files and devices? Question 6: Would it be possible for the user to develop a new command interpr ...
... What are the five major activities of an operating systemin regard to file management? Question 5: What are the advantages and disadvantages of using the same system call interface for manipulating both files and devices? Question 6: Would it be possible for the user to develop a new command interpr ...
SYSTEM SOFTWARE
... The provision of mechanisms for deadlock handling (deadlock is a situation in which each process in a set of processes is waiting for an event that only another process in the set can cause. since all the process are waiting, the system enters a deadlocked condition ...
... The provision of mechanisms for deadlock handling (deadlock is a situation in which each process in a set of processes is waiting for an event that only another process in the set can cause. since all the process are waiting, the system enters a deadlocked condition ...
Lecture 3
... These are functions available to the program, but they are not system calls. Rather, they are replaced (at compile time) with calls to userlevel libraries. ...
... These are functions available to the program, but they are not system calls. Rather, they are replaced (at compile time) with calls to userlevel libraries. ...
Enhanced Guide to Managing & Maintaining Your PC, 3e
... The intelligence of the computer Computer programs, or instructions to perform a specific task Determines what hardware is present Decides how hardware is configured and utilized Uses hardware to perform tasks ...
... The intelligence of the computer Computer programs, or instructions to perform a specific task Determines what hardware is present Decides how hardware is configured and utilized Uses hardware to perform tasks ...
Slides - Dr. Choong
... Identify operating systems Explain the major OS issues Describe the history of OS Explain OS concepts Identify services provided by OS Describe different types of OS structures ...
... Identify operating systems Explain the major OS issues Describe the history of OS Explain OS concepts Identify services provided by OS Describe different types of OS structures ...
OPERATING SYSTEMS
... FILE SYSTEM IN UNIX Everything in Unix are viewed as files. Three types of files 1. Regular files – holds executable programs and data 2. Directory files - contain other files and subdirectories. Helps to organize other files. 3. Device files – Unix treats even the hardware such as printers, CD-ROMs ...
... FILE SYSTEM IN UNIX Everything in Unix are viewed as files. Three types of files 1. Regular files – holds executable programs and data 2. Directory files - contain other files and subdirectories. Helps to organize other files. 3. Device files – Unix treats even the hardware such as printers, CD-ROMs ...
Distributed operating system
A distributed operating system is a software over a collection of independent, networked, communicating, and physically separate computational nodes. Each individual node holds a specific software subset of the global aggregate operating system. Each subset is a composite of two distinct service provisioners. The first is a ubiquitous minimal kernel, or microkernel, that directly controls that node’s hardware. Second is a higher-level collection of system management components that coordinate the node's individual and collaborative activities. These components abstract microkernel functions and support user applications.The microkernel and the management components collection work together. They support the system’s goal of integrating multiple resources and processing functionality into an efficient and stable system. This seamless integration of individual nodes into a global system is referred to as transparency, or single system image; describing the illusion provided to users of the global system’s appearance as a single computational entity.