Chapter 1: Introduction to Operating Systems
... • Object technology became popular in many areas of computing – Many applications written in object-oriented programming languages • For example, C++ or Java ...
... • Object technology became popular in many areas of computing – Many applications written in object-oriented programming languages • For example, C++ or Java ...
OS3e_01
... • Object technology became popular in many areas of computing – Many applications written in object-oriented programming languages • For example, C++ or Java ...
... • Object technology became popular in many areas of computing – Many applications written in object-oriented programming languages • For example, C++ or Java ...
ppt
... common PC hardware, but also runs on a variety of other platforms The core Linux operating system kernel is entirely original, but it can run much existing free UNIX software, resulting in an entire UNIX-compatible operating system free from proprietary code Linux system has many, varying Linux ...
... common PC hardware, but also runs on a variety of other platforms The core Linux operating system kernel is entirely original, but it can run much existing free UNIX software, resulting in an entire UNIX-compatible operating system free from proprietary code Linux system has many, varying Linux ...
ppt
... The “Fault” operation is an example of extensibility – measures the time to resolve a page fault by a user-defined pager in a separate address space. “Trap” – Latency between a write operation to a protected page, and the invocation of related exception handler. “Appel1” – Time to access a random pr ...
... The “Fault” operation is an example of extensibility – measures the time to resolve a page fault by a user-defined pager in a separate address space. “Trap” – Latency between a write operation to a protected page, and the invocation of related exception handler. “Appel1” – Time to access a random pr ...
Chapter 2: Operating
... Functions invoke the actual system calls on behalf of the programmer – Function CreateProcess() invokes system call NTCreateProcess() – Why not invoke actual system call (instead of using API) ? Because: » Program portability: compile/run on systems supporting same API Three most common APIs are ...
... Functions invoke the actual system calls on behalf of the programmer – Function CreateProcess() invokes system call NTCreateProcess() – Why not invoke actual system call (instead of using API) ? Because: » Program portability: compile/run on systems supporting same API Three most common APIs are ...
Understanding Computers, Chapter 5
... – Increasingly being used with PCs, servers, mainframes, and supercomputers – Is open-source software: has been collaboratively modified by volunteer programmers all over the world – Originally used a command line interface, most recent versions use a GUI – Strong support from mainstream companies, ...
... – Increasingly being used with PCs, servers, mainframes, and supercomputers – Is open-source software: has been collaboratively modified by volunteer programmers all over the world – Originally used a command line interface, most recent versions use a GUI – Strong support from mainstream companies, ...
cna laboratory enhancement by virtualisation centria
... curriculum must provide their students with access to equipment installed preferably in their own local laboratory. Centria has fulfilled this requirement – all the customary equipment are available in the CNA laboratory on the school premises. In the CNA laboratory, there are routers, switches, and ...
... curriculum must provide their students with access to equipment installed preferably in their own local laboratory. Centria has fulfilled this requirement – all the customary equipment are available in the CNA laboratory on the school premises. In the CNA laboratory, there are routers, switches, and ...
Operating Systems - CTAE Resource Network
... Communicate to the students the importance of creating an objective comparison when presenting on devices with which they more than likely have some personal experience. ...
... Communicate to the students the importance of creating an objective comparison when presenting on devices with which they more than likely have some personal experience. ...
Chapter 6-OS - WordPress.com
... Research-based systems have implemented much more efficient invocation protocols, E.g. – Firefly RPC (see www.cdk3.net/oss) – Amoeba's doOperation, getRequest, sendReply primitives (www.cdk3.net/oss) – LRPC [Bershad et. al. 1990], described on pp. 237-9).. ...
... Research-based systems have implemented much more efficient invocation protocols, E.g. – Firefly RPC (see www.cdk3.net/oss) – Amoeba's doOperation, getRequest, sendReply primitives (www.cdk3.net/oss) – LRPC [Bershad et. al. 1990], described on pp. 237-9).. ...
Figure 15.1 A distributed multimedia system
... Research-based systems have implemented much more efficient invocation protocols, E.g. – Firefly RPC (see www.cdk3.net/oss) – Amoeba's doOperation, getRequest, sendReply primitives (www.cdk3.net/oss) – LRPC [Bershad et. al. 1990], described on pp. 237-9).. ...
... Research-based systems have implemented much more efficient invocation protocols, E.g. – Firefly RPC (see www.cdk3.net/oss) – Amoeba's doOperation, getRequest, sendReply primitives (www.cdk3.net/oss) – LRPC [Bershad et. al. 1990], described on pp. 237-9).. ...
Module 4: Processes
... As the OS grows, the complexity becomes overwhelming. Example: OS/360 version 1 created by 5000 programmers over 5 years. In 1964, had over 1 million lines of code. Modular systems: Divide OS into modules. Example: Original UNIX had 2 modules. System programs (e.g. emacs, compiler) T ...
... As the OS grows, the complexity becomes overwhelming. Example: OS/360 version 1 created by 5000 programmers over 5 years. In 1964, had over 1 million lines of code. Modular systems: Divide OS into modules. Example: Original UNIX had 2 modules. System programs (e.g. emacs, compiler) T ...
No Slide Title
... Linux uses two techniques to protect critical sections: 1. Normal kernel code is nonpreemptible (until 2.4) – when a time interrupt is received while a process is executing a kernel system service routine, the kernel’s need_resched flag is set so that the scheduler will run once the system call has ...
... Linux uses two techniques to protect critical sections: 1. Normal kernel code is nonpreemptible (until 2.4) – when a time interrupt is received while a process is executing a kernel system service routine, the kernel’s need_resched flag is set so that the scheduler will run once the system call has ...
Chapter 7 Operating Systems and Utility Programs
... With a command-line interface, a user types commands or presses special keys on the keyboard to enter data and instructions ...
... With a command-line interface, a user types commands or presses special keys on the keyboard to enter data and instructions ...
A real-time operating system
... During the 1960s, IBM's OS/360 introduced the concept of a single OS spanning an entire product line, which was crucial for the success of the System/360 machines. IBM's current mainframe operating systems are distant descendants of this original system and applications written for OS/360 can still ...
... During the 1960s, IBM's OS/360 introduced the concept of a single OS spanning an entire product line, which was crucial for the success of the System/360 machines. IBM's current mainframe operating systems are distant descendants of this original system and applications written for OS/360 can still ...
sample unformatted document
... The first microcomputers did not have the capacity or need for the elaborate operating systems that had been developed for mainframes and minis; minimalistic operating systems were developed, often loaded from ROM and known as monitors. One notable early disk operating system was CP/M, which was sup ...
... The first microcomputers did not have the capacity or need for the elaborate operating systems that had been developed for mainframes and minis; minimalistic operating systems were developed, often loaded from ROM and known as monitors. One notable early disk operating system was CP/M, which was sup ...
![[slides] Case study: Linux](http://s1.studyres.com/store/data/008426094_1-33a53a235a0b160ad065c81f93e7bd9c-300x300.png)
[slides] Case study: Linux
... hardware, but also runs on a variety of other platforms The core Linux operating system kernel is entirely original, but it can run ...
... hardware, but also runs on a variety of other platforms The core Linux operating system kernel is entirely original, but it can run ...
Introduction:- CS-502 Operating Systems
... Two Important Operating Systems • Linux — Chapter 10 • Windows — Chapter 11 • Spans PCs, servers, multiprocessors, etc. ...
... Two Important Operating Systems • Linux — Chapter 10 • Windows — Chapter 11 • Spans PCs, servers, multiprocessors, etc. ...
Chapter 2: Operating-System Structures Silberschatz, Galvin and Gagne ©2013 – 9
... Mostly accessed by programs via a high-level Application Programming Interface (API) rather than direct system call use Three most common APIs are Win32 API for Windows, POSIX API for POSIX-based systems including virtually all versions of UNIX, Linux, and Mac OS X, Java API for the Java ...
... Mostly accessed by programs via a high-level Application Programming Interface (API) rather than direct system call use Three most common APIs are Win32 API for Windows, POSIX API for POSIX-based systems including virtually all versions of UNIX, Linux, and Mac OS X, Java API for the Java ...
Operating Systems for Parallel Processing - Current Activities
... applications will remain important users of parallel computing technology. A parallel computer is a set of processors that are able to work cooperatively to solve a computational problem. Based on this definition, a parallel computer could be a supercomputer with hundreds or thousands of processors ...
... applications will remain important users of parallel computing technology. A parallel computer is a set of processors that are able to work cooperatively to solve a computational problem. Based on this definition, a parallel computer could be a supercomputer with hundreds or thousands of processors ...
2. OS Structures - FSU Computer Science
... GUI interface with UNIX kernel underneath and shells ...
... GUI interface with UNIX kernel underneath and shells ...
a login shell
... – the oldest of the shells, available on most UNIX systems. Some systems have replaced sh with a newer shell, like ksh or bash, that has the features of sh and more.) – a bit primitive and lacks job control features (the ability to move jobs from the foreground to the background). Most UNIX users co ...
... – the oldest of the shells, available on most UNIX systems. Some systems have replaced sh with a newer shell, like ksh or bash, that has the features of sh and more.) – a bit primitive and lacks job control features (the ability to move jobs from the foreground to the background). Most UNIX users co ...
Appendix A-Linux_cs3
... These layers provide the human-oriented graphical user interface (GUI) that enables users to easily work with applications in the operating system and third-party applications to be installed on the operating system. There are tools and code libraries available that let application developers to mor ...
... These layers provide the human-oriented graphical user interface (GUI) that enables users to easily work with applications in the operating system and third-party applications to be installed on the operating system. There are tools and code libraries available that let application developers to mor ...
Berkeley Software Distribution
Berkeley Software Distribution (BSD) is a Unix operating system derivative developed and distributed by the Computer Systems Research Group (CSRG) of the University of California, Berkeley, from 1977 to 1995. Today the term ""BSD"" is often used non-specifically to refer to any of the BSD descendants which together form a branch of the family of Unix-like operating systems. Operating systems derived from the original BSD code remain actively developed and widely used.Historically, BSD has been considered a branch of Unix, Berkeley Unix, because it shared the initial codebase and design with the original AT&T Unix operating system. In the 1980s, BSD was widely adopted by vendors of workstation-class systems in the form of proprietary Unix variants such as DEC ULTRIX and Sun Microsystems SunOS. This can be attributed to the ease with which it could be licensed, and the familiarity the founders of many technology companies of the time had with it.Although these proprietary BSD derivatives were largely superseded by the UNIX System V Release 4 and OSF/1 systems in the 1990s (both of which incorporated BSD code and are the basis of other modern Unix systems), later BSD releases provided a basis for several open source development projects, e.g. FreeBSD, OpenBSD, NetBSD, Darwin or PC-BSD, that are ongoing. These, in turn, have been incorporated in whole or in part in modern proprietary operating systems, e.g. the TCP/IP networking code in Windows NT 3.1 and most of the foundation of Apple's OS X and iOS.