Introduction to Operating Systems
... • Act as a system manager / resource manager - controls hardware and software - act as an interface between user and system • Manages resources of the computer effectively ...
... • Act as a system manager / resource manager - controls hardware and software - act as an interface between user and system • Manages resources of the computer effectively ...
mac os - WordPress.com
... jobs was the first successful personal computer to feature a mouse and graphical user interface(GUI). The mac os could be easily distinguished from other ...
... jobs was the first successful personal computer to feature a mouse and graphical user interface(GUI). The mac os could be easily distinguished from other ...
View
... and popped off the stack by the operating system Block and stack methods do not limit the number or length of ...
... and popped off the stack by the operating system Block and stack methods do not limit the number or length of ...
Solaris Operating Systems
... --support for symmetric multiprocessing of up to 128 processors --open windows 3.0 graphical user environment and Open Look -- network information service (NIS) --support for static and dynamic linking -- real-time kernel processing ...
... --support for symmetric multiprocessing of up to 128 processors --open windows 3.0 graphical user environment and Open Look -- network information service (NIS) --support for static and dynamic linking -- real-time kernel processing ...
Operating System Functions and History
... 4. In contrast with stacked job batch systems, however, neither system had any provisions for protecting the memory belonging to the operating system or command interpreter from being damaged by an error in the program being run. D. In the late 1980’s MS/DOS morphed into Windows, using a GUI instead ...
... 4. In contrast with stacked job batch systems, however, neither system had any provisions for protecting the memory belonging to the operating system or command interpreter from being damaged by an error in the program being run. D. In the late 1980’s MS/DOS morphed into Windows, using a GUI instead ...
slides
... logical conclusion. It treats hardware and the operating system kernel as though they were all hardware. • A virtual machine provides an interface identical to the underlying bare hardware. • The operating system creates the illusion of multiple processes, each executing on its own processor with it ...
... logical conclusion. It treats hardware and the operating system kernel as though they were all hardware. • A virtual machine provides an interface identical to the underlying bare hardware. • The operating system creates the illusion of multiple processes, each executing on its own processor with it ...
chapter 1 Introduction
... By providing Resource Abstraction to the other system software and applications Abstraction hides the details ...
... By providing Resource Abstraction to the other system software and applications Abstraction hides the details ...
FAT:
... format for solid-state memory cards and a convenient way to share data between operating systems. The FAT file system was created for managing disks in Microsoft Standalone Disk BASIC. In August 1980 Tim Paterson incorporated FAT into his 86DOS operating system for the S-100 8086 CPU boards;[6] the ...
... format for solid-state memory cards and a convenient way to share data between operating systems. The FAT file system was created for managing disks in Microsoft Standalone Disk BASIC. In August 1980 Tim Paterson incorporated FAT into his 86DOS operating system for the S-100 8086 CPU boards;[6] the ...
Chapter 2 Operating System Overview
... A multiprocessor OS must provide all the functionality of a multiprogramming system plus additional features to accommodate multiple processors ...
... A multiprocessor OS must provide all the functionality of a multiprogramming system plus additional features to accommodate multiple processors ...
No Slide Title - ECE Users Pages
... user of a computer and the computer hardware. • Operating system goals: – Execute user programs and make solving user problems easier. – Make the computer system convenient to use. • Use the computer hardware in an efficient manner. • Make it easy to write programs by handling common tasks like text ...
... user of a computer and the computer hardware. • Operating system goals: – Execute user programs and make solving user problems easier. – Make the computer system convenient to use. • Use the computer hardware in an efficient manner. • Make it easy to write programs by handling common tasks like text ...
Operating Systems - Bina – Advanced Software Services
... Processor’s time is shared among multiple users Multiple users simultaneously access the system through terminals The objective is to minimize response time to the user commands Introduction ...
... Processor’s time is shared among multiple users Multiple users simultaneously access the system through terminals The objective is to minimize response time to the user commands Introduction ...
Operating system organization - cs.rochester.edu
... After I/O starts, control returns to user program without waiting for I/O completion. Device controller later informs CPU that it has finished its operation by causing an interrupt. When an interrupt occur, current execution is put on hold; the CPU jumps to a service routine called “interrupt handle ...
... After I/O starts, control returns to user program without waiting for I/O completion. Device controller later informs CPU that it has finished its operation by causing an interrupt. When an interrupt occur, current execution is put on hold; the CPU jumps to a service routine called “interrupt handle ...
2.01 - Faculty of Computer Science and Information Technology
... Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them ...
... Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them ...
Slide 1
... shared hard disk • Allow printing using a shared printer • Offer the option of working with or without network resources © Paradigm Publishing, Inc. ...
... shared hard disk • Allow printing using a shared printer • Offer the option of working with or without network resources © Paradigm Publishing, Inc. ...
Introduction to Network Operating Systems (NOSs)
... FAT stands for File Allocation Table. This file system is used by MS-DOS. The FAT filenames ...
... FAT stands for File Allocation Table. This file system is used by MS-DOS. The FAT filenames ...
Quiz 1 - FSU Computer Science
... multiple processors its own memory another "virtual" computer to assist in its operations more memory than is physically available on the machine ...
... multiple processors its own memory another "virtual" computer to assist in its operations more memory than is physically available on the machine ...
Spring 2005 - Computer Science
... sources, those who copy source code from other students, and those students who knowingly or unknowingly allow other students to copy from them will be penalized with a zero on any homework assignments in which this occurs. Due dates for assignments will be enforced. Late assignments will be penaliz ...
... sources, those who copy source code from other students, and those students who knowingly or unknowingly allow other students to copy from them will be penalized with a zero on any homework assignments in which this occurs. Due dates for assignments will be enforced. Late assignments will be penaliz ...
Operating Systems
... over that recommended, such as another CPU and more RAM, can further improve system performance, but at a significant cost. To take advantage of all the features provided by an operating system and installed applications, hardware resources such as sound cards, NICs, modems, microphones, and speaker ...
... over that recommended, such as another CPU and more RAM, can further improve system performance, but at a significant cost. To take advantage of all the features provided by an operating system and installed applications, hardware resources such as sound cards, NICs, modems, microphones, and speaker ...
What is an Operating System? ¯ Three views of an operating system
... entities that can be manipulated by a running program. Examples: network I/O devices ¯ Three viewsinterfaces, of an operating systemsuch as keyboards, mice and monitors, and filessoand systems: abstract view of secondary storage on.file View: Application what services does it provide? address spaces ...
... entities that can be manipulated by a running program. Examples: network I/O devices ¯ Three viewsinterfaces, of an operating systemsuch as keyboards, mice and monitors, and filessoand systems: abstract view of secondary storage on.file View: Application what services does it provide? address spaces ...
Two general strategies for creating multiple threads
... library may be replaced by a new version, and all programs that reference the library will automatically use the new version. More than one version of a library may be loaded into memory, and each program uses its version information to decide which copy of the library to use. This system is also ...
... library may be replaced by a new version, and all programs that reference the library will automatically use the new version. More than one version of a library may be loaded into memory, and each program uses its version information to decide which copy of the library to use. This system is also ...
CS423/523
... Core functionality is isolated from system services and device drivers For instance, VFS (virtual file system) and block device file systems are separate processes that run outside kernel's space, ...
... Core functionality is isolated from system services and device drivers For instance, VFS (virtual file system) and block device file systems are separate processes that run outside kernel's space, ...
Input and Output Optimization in Linux for Appropriate Resource
... create the I/O node, each one sought to optimize the Linux operating system through aggregation. These techniques are building on one another in order to achieve similar goals. Additionally, the last source concerning I/O scheduling built on the idea of the Linux anticipatory scheduler. This demonst ...
... create the I/O node, each one sought to optimize the Linux operating system through aggregation. These techniques are building on one another in order to achieve similar goals. Additionally, the last source concerning I/O scheduling built on the idea of the Linux anticipatory scheduler. This demonst ...
lecture10
... distributed, it is feasible and works well in practice. In particular, the system is self repairing, and can survive occasional crashes of both workers and managers without any long-term effects. In MICROS, the processors are monoprogrammed, so if a job requiring S processes suddenly appears, the sy ...
... distributed, it is feasible and works well in practice. In particular, the system is self repairing, and can survive occasional crashes of both workers and managers without any long-term effects. In MICROS, the processors are monoprogrammed, so if a job requiring S processes suddenly appears, the sy ...
File
... Cooperative Linux, a port of the Linux kernel that allows it to run as an unprivileged lightweight virtual machine in kernel mode, on top of another OS kernel. Uses the concept of Cooperative Virtual Machine (CVM) Contains special Windows drivers, which allow it to run under Windows XP as a guest op ...
... Cooperative Linux, a port of the Linux kernel that allows it to run as an unprivileged lightweight virtual machine in kernel mode, on top of another OS kernel. Uses the concept of Cooperative Virtual Machine (CVM) Contains special Windows drivers, which allow it to run under Windows XP as a guest op ...
Operating Systems
... file structure, boot control block, super block, inode, per process file descriptor table, system-wide open-file table, etc.) Directory implementation Free space management methods Space Allocation Methods Time and space performance of allocation methods Brief introduction to Network File System (NF ...
... file structure, boot control block, super block, inode, per process file descriptor table, system-wide open-file table, etc.) Directory implementation Free space management methods Space Allocation Methods Time and space performance of allocation methods Brief introduction to Network File System (NF ...
Plan 9 from Bell Labs
Plan 9 from Bell Labs is a distributed operating system, originally developed by the Computing Sciences Research Center at Bell Labs between the mid-1980s and 2002. It takes some of the principles of Unix, developed in the same research group, but extends these to a networked environment with graphics terminals.In Plan 9, virtually all computing resources, including files, network connections, and peripheral devices, are represented through the file system rather than specialized interfaces. A unified network protocol called 9P ties a network of computers running Plan 9 together, allowing them to share all resources so represented.The name Plan 9 from Bell Labs is a reference to the Ed Wood 1959 cult science fiction Z-movie Plan 9 from Outer Space. Also, Glenda, the Plan 9 Bunny, is presumably a reference to Wood's film Glen or Glenda. The system continues to be used and developed by operating system researchers and hobbyists.