Chapter 2 Operating System Overview
... – Prevents a job from monopolizing the system (when allocated time is up, job is stopped) ...
... – Prevents a job from monopolizing the system (when allocated time is up, job is stopped) ...
Chapter 6
... procedure, unless there is no other alternative. File compression programs make files smaller for archiving or sending over the ...
... procedure, unless there is no other alternative. File compression programs make files smaller for archiving or sending over the ...
Operating System Overview
... – Process is divided into threads that can run concurrently • Thread – Dispatchable unit of work – executes sequentially and is interruptable ...
... – Process is divided into threads that can run concurrently • Thread – Dispatchable unit of work – executes sequentially and is interruptable ...
Course Title: Operating System
... explain the objectives and functions of modern operating systems. describe the logical structure of, and facilities provided by, a modern operating system. analyze the tradeoffs inherent in operating system design. differentiate between the concepts of processes, threads and multithreading. demonstr ...
... explain the objectives and functions of modern operating systems. describe the logical structure of, and facilities provided by, a modern operating system. analyze the tradeoffs inherent in operating system design. differentiate between the concepts of processes, threads and multithreading. demonstr ...
QUIZ1
... 10. What are open systems? Why is the trend toward open systems so strong? What effect will open systems have on the massive installed bases of proprietary hardware, software and communication systems? 11. What would be in your opinion the three main features of memory? In what way(s) cache memory i ...
... 10. What are open systems? Why is the trend toward open systems so strong? What effect will open systems have on the massive installed bases of proprietary hardware, software and communication systems? 11. What would be in your opinion the three main features of memory? In what way(s) cache memory i ...
vaibhav1410945.doc
... UNIX is primarily command line operating system with additional applications such as X-Window to give a graphic oriented operating system similar to Windows. Due to its portability, flexibility, and power, UNIX has become a leading operating system for workstation products from Sun Microsystems, Sil ...
... UNIX is primarily command line operating system with additional applications such as X-Window to give a graphic oriented operating system similar to Windows. Due to its portability, flexibility, and power, UNIX has become a leading operating system for workstation products from Sun Microsystems, Sil ...
Operating System Overview
... • Hardware is surrounded by the operating system software • Operating system is called the system kernel • Comes with a number of user services and interfaces ...
... • Hardware is surrounded by the operating system software • Operating system is called the system kernel • Comes with a number of user services and interfaces ...
Operating- System Structures
... total number on the device. There, errors are frequently processindependent (for instance, the corruption of data on a disk), so there must be a global program (the operating system) that handles all types of errors. Also, by having errors processed by the operating system, processes need not contai ...
... total number on the device. There, errors are frequently processindependent (for instance, the corruption of data on a disk), so there must be a global program (the operating system) that handles all types of errors. Also, by having errors processed by the operating system, processes need not contai ...
Operating System
... • Arguments tell OS what to do • Afterwards • “return” as from a function call • Force return to user mode ...
... • Arguments tell OS what to do • Afterwards • “return” as from a function call • Force return to user mode ...
See P. 101 Operating System Characteristics and Functionality
... Operating System Characteristics and Functionality Memory Management • While using your computer, your RAM temporarily stores your OS, the application software you’re using, and any information you’re working with. • An important feature of effective memory management is your ability to perform mul ...
... Operating System Characteristics and Functionality Memory Management • While using your computer, your RAM temporarily stores your OS, the application software you’re using, and any information you’re working with. • An important feature of effective memory management is your ability to perform mul ...
CPS120: Introduction to Computer Science
... CPU Scheduling • Nonpreemptive scheduling: occurs when the currently executing process gives up the CPU voluntarily • Preemptive scheduling: occurs when the operating system decides to favor another process, preempting the ...
... CPU Scheduling • Nonpreemptive scheduling: occurs when the currently executing process gives up the CPU voluntarily • Preemptive scheduling: occurs when the operating system decides to favor another process, preempting the ...
COS 318: Operating Systems Introduction Andy Bavier Computer Science Department
... Performance/Price doubles every 18 months 100x per decade Progress in next 18 months = ALL previous progress ...
... Performance/Price doubles every 18 months 100x per decade Progress in next 18 months = ALL previous progress ...
Introduction
... Personal computer operating systems Real-time operating systems Embedded operating systems Smart card operating systems ...
... Personal computer operating systems Real-time operating systems Embedded operating systems Smart card operating systems ...
PPT 02 - Mesa Community College
... devices, keyboards, and displays. Devices installed on each computer may be different, so the OS uses device drivers. Plug-and-Play – devices have software encoded on them (ROM), which allows them to be recognized by the OS when installed, so the ...
... devices, keyboards, and displays. Devices installed on each computer may be different, so the OS uses device drivers. Plug-and-Play – devices have software encoded on them (ROM), which allows them to be recognized by the OS when installed, so the ...
Sai Uday Kiran Ravi`s presentation on Application Security on
... Overshadow interposes on clone and fork system calls to set up the new thread’s initial state. This includes cloning the memory integrity hashes and thread context (including the instruction pointer), thereby ensuring that the new thread can only be started in the same state as its parent. To en ...
... Overshadow interposes on clone and fork system calls to set up the new thread’s initial state. This includes cloning the memory integrity hashes and thread context (including the instruction pointer), thereby ensuring that the new thread can only be started in the same state as its parent. To en ...
Operating Systems
... 1 Computer boots using the BIOS ROM 2 The OS is loaded from storage into RAM 3 The CPU starts the fetch-execute cycle ...
... 1 Computer boots using the BIOS ROM 2 The OS is loaded from storage into RAM 3 The CPU starts the fetch-execute cycle ...
Chapter 7A Functions of Operating Systems Types of Operating
... – 32-bit OS – Very stable – Windows NT Workstation • Single user multi tasking OS ...
... – 32-bit OS – Very stable – Windows NT Workstation • Single user multi tasking OS ...
Operating Systems
... user no longer has direct access to processor job is submitted to computer operator who batches them together and places them on an input device program branches back to the monitor when finished ...
... user no longer has direct access to processor job is submitted to computer operator who batches them together and places them on an input device program branches back to the monitor when finished ...
interrupt
... – Multiprogramming organizes jobs (code and data) so CPU always has one to execute – A subset of total jobs in system is kept in memory – One job selected and run via job scheduling – When it has to wait (for I/O for example), OS switches to another job ...
... – Multiprogramming organizes jobs (code and data) so CPU always has one to execute – A subset of total jobs in system is kept in memory – One job selected and run via job scheduling – When it has to wait (for I/O for example), OS switches to another job ...
operating system
... Expressed in long strings of bits that the machine dealt with ADD wage income and interest income ...
... Expressed in long strings of bits that the machine dealt with ADD wage income and interest income ...
operating-systems-7th-edition-william-stallings
... 2.6 Process isolation: The operating system must prevent independent processes from interfering with each other's memory, both data and instructions. Automatic allocation and management: Programs should be dynamically allocated across the memory hierarchy as required. Allocation should be transpare ...
... 2.6 Process isolation: The operating system must prevent independent processes from interfering with each other's memory, both data and instructions. Automatic allocation and management: Programs should be dynamically allocated across the memory hierarchy as required. Allocation should be transpare ...
Operating Systems
... Resource Manager Operating systems allow multiple programs to run at the same time Resource management includes multiplexing (sharing) resources Allocating disk space and keeping track of who is using which disk blocks is a typical operating system resource management task. ...
... Resource Manager Operating systems allow multiple programs to run at the same time Resource management includes multiplexing (sharing) resources Allocating disk space and keeping track of who is using which disk blocks is a typical operating system resource management task. ...
William Stallings Computer Organization and Architecture
... Types of Operating System(1) Interactive 交互式O/S user/programmer interacts directly with the computer, to request the execution of a job 用户/程序员直接同计算机进行交互，请求执行作业 ...
... Types of Operating System(1) Interactive 交互式O/S user/programmer interacts directly with the computer, to request the execution of a job 用户/程序员直接同计算机进行交互，请求执行作业 ...
CMPT 880: Internet Architectures and Protocols
... Interrupts are generated by hardware devices Traps (or exceptions) are software-generated interrupts due to • software errors, e.g., divide by zero, illegal memory ...
... Interrupts are generated by hardware devices Traps (or exceptions) are software-generated interrupts due to • software errors, e.g., divide by zero, illegal memory ...