CS 381 Operating Systems
... [email protected] Category: Junior Extension: 2230 Office Hours: TBA TA for the Course: TBA _____________________________________________________________________________ Course: Description: ...
... [email protected] Category: Junior Extension: 2230 Office Hours: TBA TA for the Course: TBA _____________________________________________________________________________ Course: Description: ...
Slides 2 - USC Upstate: Faculty
... • 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 ...
PDF
... scheduling algorithm to decide which one of the runnable jobs to run next m Memory management (simple at first) m Protection of I/O devices from multiple applications desiring to use them m Asynchronous I/O ...
... scheduling algorithm to decide which one of the runnable jobs to run next m Memory management (simple at first) m Protection of I/O devices from multiple applications desiring to use them m Asynchronous I/O ...
FILE
... are very cryptic and hence needs a gentle introduction. Students will be introduced to the basic knowledge about (not necessarily all the commands themselves) Linux commands, system calls, library and scripts - what feature is provided in each, and where to look for the information about them, etc. ...
... are very cryptic and hence needs a gentle introduction. Students will be introduced to the basic knowledge about (not necessarily all the commands themselves) Linux commands, system calls, library and scripts - what feature is provided in each, and where to look for the information about them, etc. ...
Operating System - GCG-42
... Concept of Path: Every file can be specified by enumerating all of the directories between the root and it, separated by the backslash '\' character, and appending the file name to the end. ...
... Concept of Path: Every file can be specified by enumerating all of the directories between the root and it, separated by the backslash '\' character, and appending the file name to the end. ...
2. OS Components
... but to halt the system. At other times, it might terminate an error-causing process or return an error code to a process for the process to detect and possibly correct. Another set of operating system functions exists not for helping the user but rather for ensuring the efficient operation of the sy ...
... but to halt the system. At other times, it might terminate an error-causing process or return an error code to a process for the process to detect and possibly correct. Another set of operating system functions exists not for helping the user but rather for ensuring the efficient operation of the sy ...
What is an Operating System?
... – generalize hardware behavior – limit the flexibility in which hardware can be manipulated • Computation model: processes, threads • Resources: memory, disk, files, cpu, etc. ...
... – generalize hardware behavior – limit the flexibility in which hardware can be manipulated • Computation model: processes, threads • Resources: memory, disk, files, cpu, etc. ...
01-intro
... Write, compile, debug, and execute C programs that correctly use system interfaces provided by UNIX (or a UNIXlike operating system). ...
... Write, compile, debug, and execute C programs that correctly use system interfaces provided by UNIX (or a UNIXlike operating system). ...
Presentación de PowerPoint
... File: collection of bits with a name saved in a physical storage device File system: mecanism to access the file using its symbolic name Directory: data structure that groups a set of files File operations: open, close, read, write, append, ... UNIX file management is implemented using indexed-nodes ...
... File: collection of bits with a name saved in a physical storage device File system: mecanism to access the file using its symbolic name Directory: data structure that groups a set of files File operations: open, close, read, write, append, ... UNIX file management is implemented using indexed-nodes ...
Slide 1
... more than one program in memory. There are 2 Types of Multiprogramming OS you need to know : Multitasking and Multiuser ...
... more than one program in memory. There are 2 Types of Multiprogramming OS you need to know : Multitasking and Multiuser ...
08_Operating System Support
... Memory Management • Uni-program —Memory split into two —One for Operating System —One for currently executing program ...
... Memory Management • Uni-program —Memory split into two —One for Operating System —One for currently executing program ...
MBG404_LS_02
... An application is in pieces: kernel and supporting Microsoft Office: 8 applications, 3,286 files ...
... An application is in pieces: kernel and supporting Microsoft Office: 8 applications, 3,286 files ...
CIT 500: IT Fundamentals
... E.g., The OS performs the task of dealing with complicated hardware resources and gives you a comprehensive and simple machine, ready to use. In this way, the OS provides a virtual machine. ...
... E.g., The OS performs the task of dealing with complicated hardware resources and gives you a comprehensive and simple machine, ready to use. In this way, the OS provides a virtual machine. ...
Basic Unix - University of Arizona
... • Unix is an operating system – sits between the hardware and the user/applications – provides high-level abstractions (e.g., files, processes) and services (e.g., multiprogramming) ...
... • Unix is an operating system – sits between the hardware and the user/applications – provides high-level abstractions (e.g., files, processes) and services (e.g., multiprogramming) ...
Module 3: Operating
... The resources of the physical computer are shared to create the virtual machines. CPU scheduling can create the appearance that users have their own processor. Spooling and a file system can provide virtual card readers and virtual line printers. A normal user time-sharing terminal serves as ...
... The resources of the physical computer are shared to create the virtual machines. CPU scheduling can create the appearance that users have their own processor. Spooling and a file system can provide virtual card readers and virtual line printers. A normal user time-sharing terminal serves as ...
Chapter 6 An Introduction to System Software and
... Each program will be waiting for a resource to become available that never will be free. There is a set of programs each of which is waiting for an event to occur before it may proceed, but that event can be caused only by another waiting program in the set. Deadlock prevention The OS uses res ...
... Each program will be waiting for a resource to become available that never will be free. There is a set of programs each of which is waiting for an event to occur before it may proceed, but that event can be caused only by another waiting program in the set. Deadlock prevention The OS uses res ...
Chapter 6 An Introduction to System Software
... Each program will be waiting for a resource to become available that never will be free. There is a set of programs each of which is waiting for an event to occur before it may proceed, but that event can be caused only by another waiting program in the set. Deadlock prevention The OS uses res ...
... Each program will be waiting for a resource to become available that never will be free. There is a set of programs each of which is waiting for an event to occur before it may proceed, but that event can be caused only by another waiting program in the set. Deadlock prevention The OS uses res ...
CSE451 Introduction to Operating Systems
... sharing: how are resources shared across users? naming: how are resources named (by users or programs)? security: how is the integrity of the OS and its resources ensured? protection: how is one user/program protected from another? performance: how do we make it all go fast? reliability: what happen ...
... sharing: how are resources shared across users? naming: how are resources named (by users or programs)? security: how is the integrity of the OS and its resources ensured? protection: how is one user/program protected from another? performance: how do we make it all go fast? reliability: what happen ...
lect_1
... 7- Protection System Protection refers to a mechanism for controlling the access of programs, processes, or users to the resources defined by a computer system ...
... 7- Protection System Protection refers to a mechanism for controlling the access of programs, processes, or users to the resources defined by a computer system ...
Suppose that a disk drive has 10,000 cylinders, numbered 0 to 9999
... Q. State wither the following statements are true (T) or false (F) [6 points] Binding of code and data to memory can be done at compile-time, load-time, or execution-time. An address generated by a CPU is referred to as a physical address The vfork() system call in UNIX allows the child process to ...
... Q. State wither the following statements are true (T) or false (F) [6 points] Binding of code and data to memory can be done at compile-time, load-time, or execution-time. An address generated by a CPU is referred to as a physical address The vfork() system call in UNIX allows the child process to ...
csc1 intro
... Software is the programs and data that a computer uses. Programs are lists of instructions for the processor. Data can be any information that a program needs: character data, numerical data, image data, audio data, and countless other types. ...
... Software is the programs and data that a computer uses. Programs are lists of instructions for the processor. Data can be any information that a program needs: character data, numerical data, image data, audio data, and countless other types. ...