Chapter 2 – Operating System Overview
... 1. T / F – An operating system controls the execution of applications and acts as an interface between applications and the computer hardware. ANS: T 2. T / F – The operating system maintains information that can be used for billing purposes on multi-user systems. ANS: T 3. T / F – The operating sys ...
... 1. T / F – An operating system controls the execution of applications and acts as an interface between applications and the computer hardware. ANS: T 2. T / F – The operating system maintains information that can be used for billing purposes on multi-user systems. ANS: T 3. T / F – The operating sys ...
Chapter 5
... • Operating system combined with the processor is known as a platform – Microsoft Windows/Intel – Apple Macintosh/Motorola ...
... • Operating system combined with the processor is known as a platform – Microsoft Windows/Intel – Apple Macintosh/Motorola ...
Abstract View of System Components
... have been placed on the operation of a processor or the flow of data; thus, it is Often used as a control device in a dedicated application such as controlling scientific experiments, medical imaging systems, industrial control systems, and some display systems. A real-time system has well-defin ...
... have been placed on the operation of a processor or the flow of data; thus, it is Often used as a control device in a dedicated application such as controlling scientific experiments, medical imaging systems, industrial control systems, and some display systems. A real-time system has well-defin ...
Process Control
... z Asleep in memory: unable to execute until an event occurs; process in main memory. z Ready to run, swapped: process is ready to run, but the the swapper must swap the process into main memory before the kernel can schedule it to execute. z Sleeping, swapped: The process is awaiting an event and ha ...
... z Asleep in memory: unable to execute until an event occurs; process in main memory. z Ready to run, swapped: process is ready to run, but the the swapper must swap the process into main memory before the kernel can schedule it to execute. z Sleeping, swapped: The process is awaiting an event and ha ...
What is an Operating System?
... One or more CPUs, device controllers connect through common bus providing access to shared memory ...
... One or more CPUs, device controllers connect through common bus providing access to shared memory ...
Multiprocessor and Real
... • Central queue needs mutual exclusion – May be a bottleneck when more than one processor looks for work at the same time ...
... • Central queue needs mutual exclusion – May be a bottleneck when more than one processor looks for work at the same time ...
Operating Systems – Processes
... • An OS executes a variety of programs – In batch systems, referred to as jobs – In time shared systems, referred to as user programs or tasks ...
... • An OS executes a variety of programs – In batch systems, referred to as jobs – In time shared systems, referred to as user programs or tasks ...
Operating Systems for Parallel Processing - Current Activities
... intensive applications in science and engineering. Applications from our days have growing computational needs. As computers become ever faster, we can expect that one-day computers will become fast enough. However, new application will arise and these applications will demand faster computers. In o ...
... intensive applications in science and engineering. Applications from our days have growing computational needs. As computers become ever faster, we can expect that one-day computers will become fast enough. However, new application will arise and these applications will demand faster computers. In o ...
PPT
... network), buffer space allocated out of band by GuestOS Descriptor contains unique identifier to allow out of order processing Multiple requests can be added before hypercall made to begin processing Event notification can be masked by GuestOS for its convenience ...
... network), buffer space allocated out of band by GuestOS Descriptor contains unique identifier to allow out of order processing Multiple requests can be added before hypercall made to begin processing Event notification can be masked by GuestOS for its convenience ...
Input and Output Optimization in Linux for Appropriate Resource
... any operating system. The handling of interrupts as well as the handling network traffic are integral parts of managing resources, with an emphasis on time, in every operating system. There are two main concepts in understanding the operations of I/O in terms of scheduling. These are asynchronous or ...
... any operating system. The handling of interrupts as well as the handling network traffic are integral parts of managing resources, with an emphasis on time, in every operating system. There are two main concepts in understanding the operations of I/O in terms of scheduling. These are asynchronous or ...
The Architecture of Virtual Machines
... A discussion of VMs is also a discussion about computer architecture in the pure sense of the term. Because VM implementations lie at architected interfaces, a major consideration in the construction of a VM is the fidelity with which it implements these interfaces. Architecture, as applied to compu ...
... A discussion of VMs is also a discussion about computer architecture in the pure sense of the term. Because VM implementations lie at architected interfaces, a major consideration in the construction of a VM is the fidelity with which it implements these interfaces. Architecture, as applied to compu ...
1. A(n) ______ is the unit of work in a system. A) process B
... A) gathers together multiple CPUs to accomplish computational work B) is an operating system that provides file sharing across a network C) is used when rigid time requirements are present D) can only operate one application at a time Ans: A 21. An initial bootstrap program is in the form of random- ...
... A) gathers together multiple CPUs to accomplish computational work B) is an operating system that provides file sharing across a network C) is used when rigid time requirements are present D) can only operate one application at a time Ans: A 21. An initial bootstrap program is in the form of random- ...
Operating system
... Distributed Systems • Distribute the computation among several physical processors. • Loosely coupled system – each processor has its own local memory; processors communicate with one another through various communications lines, such as high-speed buses or telephone lines. • Advantages of distribu ...
... Distributed Systems • Distribute the computation among several physical processors. • Loosely coupled system – each processor has its own local memory; processors communicate with one another through various communications lines, such as high-speed buses or telephone lines. • Advantages of distribu ...
ICS 143 - Introduction to Operating Systems
... The program that executes forever (everything else is an application with respect to the kernel). ...
... The program that executes forever (everything else is an application with respect to the kernel). ...
Operating system (OS)
... Cooperative– Foreground program controls CPU and relinquishes it when closed. This causes the computer to “freeze” or “hang.” Preemptive– Gives the OS control of the CPU when a program stops running. Multithreading– Enables the computer to perform more than one task in a program. Each task is ...
... Cooperative– Foreground program controls CPU and relinquishes it when closed. This causes the computer to “freeze” or “hang.” Preemptive– Gives the OS control of the CPU when a program stops running. Multithreading– Enables the computer to perform more than one task in a program. Each task is ...
Mach: A System Software Kernel Abstract
... transparent shared library is a code library which can be loaded in the address space of a program without its knowledge, which can intercept system calls made by that program. Transparent shared libraries are loaded by a parent process and transparently inherited by its child processes using Mach’s ...
... transparent shared library is a code library which can be loaded in the address space of a program without its knowledge, which can intercept system calls made by that program. Transparent shared libraries are loaded by a parent process and transparently inherited by its child processes using Mach’s ...
Chapter 2: Operating
... Various mouse buttons over objects in the interface cause various actions (provide information, options, execute function, open directory (known as a ...
... Various mouse buttons over objects in the interface cause various actions (provide information, options, execute function, open directory (known as a ...
slides-2
... Some ask the system for info - date, time, amount of available memory, disk space, number of users Others provide detailed performance, logging, and debugging information Typically, these programs format and print the output to the terminal or other output devices Some systems implement a registry - ...
... Some ask the system for info - date, time, amount of available memory, disk space, number of users Others provide detailed performance, logging, and debugging information Typically, these programs format and print the output to the terminal or other output devices Some systems implement a registry - ...
Introduction to Operating Systems (continued)
... • The distillation of a complex mechanism into a simple, conceptual model • User of abstraction does not need to worry about details • Implementer of abstraction does not need to worry about how user will use it (within limits) CS-2301 B-term 2008 ...
... • The distillation of a complex mechanism into a simple, conceptual model • User of abstraction does not need to worry about details • Implementer of abstraction does not need to worry about how user will use it (within limits) CS-2301 B-term 2008 ...
ppt
... executed by a (real or virtual) processor – at any instant, there may be many processes running copies of the same program (e.g., an editor); each process is separate and (usually) independent – Linux: ps -auwwx to list all processes process B ...
... executed by a (real or virtual) processor – at any instant, there may be many processes running copies of the same program (e.g., an editor); each process is separate and (usually) independent – Linux: ps -auwwx to list all processes process B ...
Introduction to UNIX/Linux - gozips.uakron.edu
... software designed to communicate with the application software and the user Basic Input/Output System (BIOS) – provides the basic input/output functions to communicate with system devices, such as monitors, keyboard, ...
... software designed to communicate with the application software and the user Basic Input/Output System (BIOS) – provides the basic input/output functions to communicate with system devices, such as monitors, keyboard, ...