Operating System
... • A concept used to group files together. • System calls are needed – to create and remove directories. – to put an existing file in a directory, – to remove a file from the directory. ...
... • A concept used to group files together. • System calls are needed – to create and remove directories. – to put an existing file in a directory, – to remove a file from the directory. ...
OPERATING SYSTEMS: DESIGN AND IMPLEMENTATION
... Create a new entry, name2, pointing to name1 Remove a directory entry Mount a file system Unmount a file system Flush all cached blocks to the disk Change the working directory Change the root directory ...
... Create a new entry, name2, pointing to name1 Remove a directory entry Mount a file system Unmount a file system Flush all cached blocks to the disk Change the working directory Change the root directory ...
EIE3311 - PolyU EIE
... DMA controller, shared-bus operation, disk memory systems, video displays. 1.7 Cache memory: mapping, associativity; replacement policies; write policies; performance. 2. Disk Operating System 2.1 Roles of basic input/output system (BIOS) and basic disk operating system(DOS); power-up sequence; boot ...
... DMA controller, shared-bus operation, disk memory systems, video displays. 1.7 Cache memory: mapping, associativity; replacement policies; write policies; performance. 2. Disk Operating System 2.1 Roles of basic input/output system (BIOS) and basic disk operating system(DOS); power-up sequence; boot ...
MCS 022 Term-End Examination June, 2014
... (a) Write the steps to configure a Windows 2000 computer to ensure that users can log-on to the server only during the specified times. ...
... (a) Write the steps to configure a Windows 2000 computer to ensure that users can log-on to the server only during the specified times. ...
CS 550 Operating Systems - James Madison University
... hours late in exchange for an automatic 10% penalty. No exceptions will be made for the penalty, and no submissions will be accepted after the penalty deadline. All submitted code must compile and run on the stu server. Failure to provide compilable code will result in a grade of 0. All exams for th ...
... hours late in exchange for an automatic 10% penalty. No exceptions will be made for the penalty, and no submissions will be accepted after the penalty deadline. All submitted code must compile and run on the stu server. Failure to provide compilable code will result in a grade of 0. All exams for th ...
Introduction
... – Huge, parallel, very expensive, not understood • Windows NT/XP: 10 years, 1000s of people, … ...
... – Huge, parallel, very expensive, not understood • Windows NT/XP: 10 years, 1000s of people, … ...
PPT - Course Website Directory
... System calls for process management Example of fork used in simplified shell program ...
... System calls for process management Example of fork used in simplified shell program ...
slides
... • The OS abstracts hardware into logical resources and welldefined interfaces to those resources (ease of use) ...
... • The OS abstracts hardware into logical resources and welldefined interfaces to those resources (ease of use) ...
Introduction to the course
... All in one – all OS components can freely interact with each other. ...
... All in one – all OS components can freely interact with each other. ...
Introduction
... • Stack is used for function calls. • Heap is used for dynamically needed memory • Data is for memory that is “static”, like global variables, etc. • Text (code) is program machine code. • How about threads? • Is it all writable? Executable? Readable? ...
... • Stack is used for function calls. • Heap is used for dynamically needed memory • Data is for memory that is “static”, like global variables, etc. • Text (code) is program machine code. • How about threads? • Is it all writable? Executable? Readable? ...
Exercises
... such asmessaging. Thesemessages are conveyed by the operating system. The primary disadvantages of the microkernel architecture are the overheads associated with interprocess communication and the frequent use of the operating system’s messaging functions in order to enable the user process and the ...
... such asmessaging. Thesemessages are conveyed by the operating system. The primary disadvantages of the microkernel architecture are the overheads associated with interprocess communication and the frequent use of the operating system’s messaging functions in order to enable the user process and the ...
Chapter 1 PowerPoint
... – Single user cannot keep CPU and I/O devices busy at all times – Multiprogramming organizes jobs (code and data) so CPU always has one to execute – Many jobs are kept in memory – One job selected and run via job scheduling – When it has to wait (for I/O for example), OS switches to another job • Ti ...
... – Single user cannot keep CPU and I/O devices busy at all times – Multiprogramming organizes jobs (code and data) so CPU always has one to execute – Many jobs are kept in memory – One job selected and run via job scheduling – When it has to wait (for I/O for example), OS switches to another job • Ti ...
ppt
... number of simultaneous calls permitted to the procedure by a client? Why must the binding object be presented to the kernel on every call? Why doesn’t the server handle the callers return address directly? Why does the kernel maintain a stack of linkage records for each caller, instead of just one? ...
... number of simultaneous calls permitted to the procedure by a client? Why must the binding object be presented to the kernel on every call? Why doesn’t the server handle the callers return address directly? Why does the kernel maintain a stack of linkage records for each caller, instead of just one? ...
1-web
... server. Under this model, the client requests services that are provided by the server. The peer-to-peer model doesn’t have such strict roles. In fact, all nodes in the system are considered peers and thus may act as either clients or servers—or both. A node may request a service from another peer, ...
... server. Under this model, the client requests services that are provided by the server. The peer-to-peer model doesn’t have such strict roles. In fact, all nodes in the system are considered peers and thus may act as either clients or servers—or both. A node may request a service from another peer, ...
Computers: Tools for an Information Age
... Describe the methods of resource allocation on large computers Describe the differences among multiprocessing, multiprogramming, and time-sharing Explain the principles of memory management List several functions that are typically performed by utility programs Copyright © 2003 by Prentice Hall ...
... Describe the methods of resource allocation on large computers Describe the differences among multiprocessing, multiprogramming, and time-sharing Explain the principles of memory management List several functions that are typically performed by utility programs Copyright © 2003 by Prentice Hall ...
Chapter03 - Home - KSU Faculty Member websites
... Describe the methods of resource allocation on large computers Describe the differences among multiprocessing, multiprogramming, and time-sharing Explain the principles of memory management List several functions that are typically performed by utility programs Copyright © 2003 by Prentice Hall ...
... Describe the methods of resource allocation on large computers Describe the differences among multiprocessing, multiprogramming, and time-sharing Explain the principles of memory management List several functions that are typically performed by utility programs Copyright © 2003 by Prentice Hall ...
390aLecture01_15au
... • caution: the cp, rm, mv commands do not prompt for confirmation easy to overwrite/delete a file; this setting can be overridden (how?) • Use “-i” with the command, “interactive” to prompt before overwrite ...
... • caution: the cp, rm, mv commands do not prompt for confirmation easy to overwrite/delete a file; this setting can be overridden (how?) • Use “-i” with the command, “interactive” to prompt before overwrite ...
390aLecture01_15sp
... • caution: the cp, rm, mv commands do not prompt for confirmation easy to overwrite/delete a file; this setting can be overridden (how?) • Use “-i” with the command, “interactive” to prompt before overwrite ...
... • caution: the cp, rm, mv commands do not prompt for confirmation easy to overwrite/delete a file; this setting can be overridden (how?) • Use “-i” with the command, “interactive” to prompt before overwrite ...