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Interrupts
Interrupts

... control to the exception handler (software). • Since the exception handler can be called at any time, there cannot be any arguments passed or return value. ...
HW2 Solution 1. What are the advantages of using a higher
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CS4023_-_lecture_02_..

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PPT - CS
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OSreviewS2004
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Operating System - Linux - Home Pages of People@DU

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COS 318: Operating Systems  OS Structures and System Calls
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... Jump to kernel, execute handler 0 in interrupt vector l  Handler 0 sends SIGFPE to process l  Kernel returns control to process l  Process has outstanding signal l  Did process register SIGFPE handler? l  ...
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Introduction to Object Technology
Introduction to Object Technology

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CHAPTER 13: I/O SYSTEMS
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Work with Files and Directories
Work with Files and Directories

... • In 1992, AT&T’s UNIX business was sold to Novell. Novell then turned over the UNIX to X/OPEN. The Open Group published the single UNIX Specification. • The Portable Operating System Interface (POSIX) is a set of standard operating interfaces based on UNIX. • Most UNIX vendors cooperate with The Op ...
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... • There must be a system call instruction, which: – causes an exception (throws a software interrupt), which vectors to a kernel handler – passes a parameter indicating which system call to invoke – saves caller’s state (regs, mode bit) so they can be restored – OS must verify caller’s parameters (e ...
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Memory Management

... named collection of persistent information that can be read or written A file system supports directories, which contain files and other directories ...
Tutorial 1 Answers File
Tutorial 1 Answers File

... *Handle output to the monitor and printer *Handle remote communications using a modem *Manage network communications, such as for a local network and the Internet *Control input/output for devices such as network interface card *Control information storage and retrieval using various types of disk * ...
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DNIX

DNIX (original spelling: D-Nix) was a Unix-like real-time operating system from the Swedish company Dataindustrier AB (DIAB). A version called ABCenix was also developed for the ABC1600 computer from Luxor. (Daisy Systems also had something called Daisy DNIX on some of their CAD workstations. It was unrelated to DIAB's product.)
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