2.01 - Tamkang University
... Apple Mac OS X as “Aqua” GUI interface with UNIX kernel underneath and shells available ...
... Apple Mac OS X as “Aqua” GUI interface with UNIX kernel underneath and shells available ...
Osprey: Operating System for Predictable Clouds
... application can be restarted on a new machine. Osprey supports application checkpoint, restart, and migration in two ways. First, due to library and buddy operating systems, it stores almost all application state in the user space and can thus efficiently save it and restore it. Second, resource con ...
... application can be restarted on a new machine. Osprey supports application checkpoint, restart, and migration in two ways. First, due to library and buddy operating systems, it stores almost all application state in the user space and can thus efficiently save it and restore it. Second, resource con ...
Chapter 1: Introduction
... Usually disks used to store data that does not fit in main memory or data that must be kept for a “long” period of time. ...
... Usually disks used to store data that does not fit in main memory or data that must be kept for a “long” period of time. ...
What is an Operating System?
... Open-Source Operating Systems Operating systems made available in source-code format rather than ...
... Open-Source Operating Systems Operating systems made available in source-code format rather than ...
COSC 530: Semester Project Dalvik Virtual Machine
... COSC 530: Semester Project Dalvik Virtual Machine ...
... COSC 530: Semester Project Dalvik Virtual Machine ...
Chapter 2: OS structure
... File-system manipulation - The file system is of particular interest. Obviously, programs need to read and write files and directories, create and delete them, search them, list file Information, permission ...
... File-system manipulation - The file system is of particular interest. Obviously, programs need to read and write files and directories, create and delete them, search them, list file Information, permission ...
Operating-System Structures
... Another set of OS functions exists for ensuring the efficient operation of the system itself via resource sharing Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them Many types of resources - Some (such as CPU cycles, main ...
... Another set of OS functions exists for ensuring the efficient operation of the system itself via resource sharing Resource allocation - When multiple users or multiple jobs running concurrently, resources must be allocated to each of them Many types of resources - Some (such as CPU cycles, main ...
Device controllers
... ■ Explore the structure of an operating system’s I/O subsystem ■ Discuss the principles of I/O hardware and its complexity ■ Provide details of the performance aspects of I/O hardware and ...
... ■ Explore the structure of an operating system’s I/O subsystem ■ Discuss the principles of I/O hardware and its complexity ■ Provide details of the performance aspects of I/O hardware and ...
What is an Operating System?
... Stand-alone general purpose machines But blurred as most systems interconnect with others (i.e., ...
... Stand-alone general purpose machines But blurred as most systems interconnect with others (i.e., ...
What is an Operating System? - University of Central Florida
... hardware, operating system, software) Information in use copied from slower to faster storage temporarily Faster storage (cache) checked first to determine if information is ...
... hardware, operating system, software) Information in use copied from slower to faster storage temporarily Faster storage (cache) checked first to determine if information is ...
Document
... • Old cell phone + old PDAs = new Smartphones • Smartpone OS’s: – Blackberry OS – Nokia Symbian OS - ending 2016; replaced by Microsoft Windows Phone 7 – iPhone iOS – Google Android (is Linux based) – Palm with HP webOS ...
... • Old cell phone + old PDAs = new Smartphones • Smartpone OS’s: – Blackberry OS – Nokia Symbian OS - ending 2016; replaced by Microsoft Windows Phone 7 – iPhone iOS – Google Android (is Linux based) – Palm with HP webOS ...
Operating Systems Lab.
... By 1985, two primary versions of UNIX were running on many different hardware platforms: ...
... By 1985, two primary versions of UNIX were running on many different hardware platforms: ...
Identify and describe the functions of different operating systems
... people would not want to physically operate the same computer at the same time, so the ability to do this is provided by network operating systems. A network operating system allows many personal computers to connect to other computers by means of communication media such as cable or wireless links. ...
... people would not want to physically operate the same computer at the same time, so the ability to do this is provided by network operating systems. A network operating system allows many personal computers to connect to other computers by means of communication media such as cable or wireless links. ...
Identify and describe the functions of different operating systems
... people would not want to physically operate the same computer at the same time, so the ability to do this is provided by network operating systems. A network operating system allows many personal computers to connect to other computers by means of communication media such as cable or wireless links. ...
... people would not want to physically operate the same computer at the same time, so the ability to do this is provided by network operating systems. A network operating system allows many personal computers to connect to other computers by means of communication media such as cable or wireless links. ...
Linus Torvalds - cs.helsinki.fi
... In 2002, the Linux kernel development team began using BitKeeper as a code version management tool. The main idea of version-control systems is to promote synergic software projects by maintaining a central repository of source code. BitKeeper is a proprietary software tool for distributed revision ...
... In 2002, the Linux kernel development team began using BitKeeper as a code version management tool. The main idea of version-control systems is to promote synergic software projects by maintaining a central repository of source code. BitKeeper is a proprietary software tool for distributed revision ...
lecture2
... Security – defense of the system against internal and external attacks Huge range of attacks: denial-of-service (using all resources and keeping legitimate users out of the system), worms, viruses, identity theft, theft of service (unauthorized use of a system) On some systems an OS function, ...
... Security – defense of the system against internal and external attacks Huge range of attacks: denial-of-service (using all resources and keeping legitimate users out of the system), worms, viruses, identity theft, theft of service (unauthorized use of a system) On some systems an OS function, ...
slides - Caltech
... • Specifies the address of the handler (6 bytes), plus flags (2 bytes) • (Privilege level that the handler runs at is specified elsewhere in the IA32 architecture; will revisit this topic in the future) • When a program issues an int n instruction: • Processor retrieves entry n in the Interrupt Desc ...
... • Specifies the address of the handler (6 bytes), plus flags (2 bytes) • (Privilege level that the handler runs at is specified elsewhere in the IA32 architecture; will revisit this topic in the future) • When a program issues an int n instruction: • Processor retrieves entry n in the Interrupt Desc ...
unixhist
... time operating systems were not, for our management, an attractive area in which to support work. They were in the process of extricating themselves not only from an operating system development effort that had failed, but from running the local Computation Center. Thus it may have seemed that buyin ...
... time operating systems were not, for our management, an attractive area in which to support work. They were in the process of extricating themselves not only from an operating system development effort that had failed, but from running the local Computation Center. Thus it may have seemed that buyin ...
Chapter 12
... • The tradeoffs to be considered when attempting to improve overall system performance • The roles of system measurement tools such as positive and negative feedback loops • Two system monitoring techniques • The importance of sound accounting practices by system administrators ...
... • The tradeoffs to be considered when attempting to improve overall system performance • The roles of system measurement tools such as positive and negative feedback loops • Two system monitoring techniques • The importance of sound accounting practices by system administrators ...
Monday, 26 November, 2007.
... “Everything a vendor ships when you order an operating system” is good approximation “The one program running at all times on the computer” is the kernel. Everything else is either a system program (ships with the operating system) or an application program. Operating systems differ a lot in how muc ...
... “Everything a vendor ships when you order an operating system” is good approximation “The one program running at all times on the computer” is the kernel. Everything else is either a system program (ships with the operating system) or an application program. Operating systems differ a lot in how muc ...
Chapter 1: Introduction
... The basic unit of computer storage is the bit. A bit can contain one of two values, 0 and 1. All other storage in a computer is based on collections of bits. Given enough bits, it is amazing how many things a computer can represent: numbers, letters, images, movies, sounds, documents, and programs, ...
... The basic unit of computer storage is the bit. A bit can contain one of two values, 0 and 1. All other storage in a computer is based on collections of bits. Given enough bits, it is amazing how many things a computer can represent: numbers, letters, images, movies, sounds, documents, and programs, ...