ppt
... Relocatable load file Can simulate last two with first method by inserting appropriate control characters Who decides: Operating system ...
... Relocatable load file Can simulate last two with first method by inserting appropriate control characters Who decides: Operating system ...
Slide 1
... A file format refers to the organization and layout of data that is stored in a file The format of a file usually includes a header, data, and possibly an end-of-file marker A file header is a section of data at the beginning of a file that contains information about a file ...
... A file format refers to the organization and layout of data that is stored in a file The format of a file usually includes a header, data, and possibly an end-of-file marker A file header is a section of data at the beginning of a file that contains information about a file ...
Files and File Systems • files: persistent, named data objects – data
... – more complex space management – external fragmentation (wasted unallocated space) ...
... – more complex space management – external fragmentation (wasted unallocated space) ...
Chapter 9: File-System Interface
... Relocatable load file Can simulate last two with first method by inserting appropriate control characters Who decides: Operating system Program / programmer ...
... Relocatable load file Can simulate last two with first method by inserting appropriate control characters Who decides: Operating system Program / programmer ...
File Management
... operating system files needed to boot your computer without accessing the hard disk A recovery disk (sometimes referred to as a recovery CD) is a bootable CD, DVD, or other media that contains a complete copy of your computer’s hard disk as it existed when the computer was new ...
... operating system files needed to boot your computer without accessing the hard disk A recovery disk (sometimes referred to as a recovery CD) is a bootable CD, DVD, or other media that contains a complete copy of your computer’s hard disk as it existed when the computer was new ...
Slide 1
... multiple tasks, rather than the operating system’s ability to do so? A. Multi-core B. Multitasking C. Multithreading D. Multiprocessing Chapter 4: Operating Systems and File Management ...
... multiple tasks, rather than the operating system’s ability to do so? A. Multi-core B. Multitasking C. Multithreading D. Multiprocessing Chapter 4: Operating Systems and File Management ...
z/VM Conversational Monitor System (CMS)
... Conversational Monitor System (CMS)- A component of z/VM that runs in a virtual machine and provides both the interactive z/VM end-user interface and the general z/VM application programming interface. CMS runs only under the control of the z/VM Control Program (CP). CMS Pipelines- CMS job control p ...
... Conversational Monitor System (CMS)- A component of z/VM that runs in a virtual machine and provides both the interactive z/VM end-user interface and the general z/VM application programming interface. CMS runs only under the control of the z/VM Control Program (CP). CMS Pipelines- CMS job control p ...
ch3
... between a running program and the operating system: Pass parameters in registers Store the parameters in a table in memory, and the table address is passed as a parameter in a register III. Push (store) the parameters onto the stack by the program, and pop off the stack by operating system ...
... between a running program and the operating system: Pass parameters in registers Store the parameters in a table in memory, and the table address is passed as a parameter in a register III. Push (store) the parameters onto the stack by the program, and pop off the stack by operating system ...
Slides
... Both the directory structure and the files reside on disk Backups of these two structures are kept on tapes Operating System Concepts with Java ...
... Both the directory structure and the files reside on disk Backups of these two structures are kept on tapes Operating System Concepts with Java ...
Slide 1
... 4 File Management Metaphors Storage metaphors help you visualize and mentally organize the files on your disks ...
... 4 File Management Metaphors Storage metaphors help you visualize and mentally organize the files on your disks ...
Modern Operating System - Tanenbaum solution 3rd
... entry. When I/O completed, the CPU would store the current machine state in the current process table entry. Then it would go to the interrupt vector for the interrupting device and fetch a pointer to another process table entry (the service procedure). This process would then be started up. 3. Gene ...
... entry. When I/O completed, the CPU would store the current machine state in the current process table entry. Then it would go to the interrupt vector for the interrupting device and fetch a pointer to another process table entry (the service procedure). This process would then be started up. 3. Gene ...
Slides
... The file is viewed as a numbered sequence of blocks or records. There are no restrictions on which blocks are read/written in any order. User now says "read n" rather than "read next". "n" is a number relative to the beginning of file, not relative to an absolute physical disk location. ...
... The file is viewed as a numbered sequence of blocks or records. There are no restrictions on which blocks are read/written in any order. User now says "read n" rather than "read next". "n" is a number relative to the beginning of file, not relative to an absolute physical disk location. ...
Modern Operating System by Tanenbaum
... Question 19: A computer provides each process with 65,536 bytes of address space divided into pages of 4096 bytes. A particular program has a text size of 32,768 bytes, a data size of 16,386 bytes, and a stack size of 15,870 bytes. Will this program fit in the address space? If the page size were 51 ...
... Question 19: A computer provides each process with 65,536 bytes of address space divided into pages of 4096 bytes. A particular program has a text size of 32,768 bytes, a data size of 16,386 bytes, and a stack size of 15,870 bytes. Will this program fit in the address space? If the page size were 51 ...
CS311 - NUS School of Computing
... application program is running.” “The OS may be split into a kernel which is always present and various system programs which use facilities provided by the kernel to perform higher-level housekeeping tasks, often acting as servers in a client-server relationship.” “Some would include a graphical us ...
... application program is running.” “The OS may be split into a kernel which is always present and various system programs which use facilities provided by the kernel to perform higher-level housekeeping tasks, often acting as servers in a client-server relationship.” “Some would include a graphical us ...
Windows Server 2008
... • Some users keep most of their files in the computer’s primary level or root directory (root folder) • Some programs use an automated setup that suggests folders for new programs – Example – creating new subfolders under the Program Files folder ...
... • Some users keep most of their files in the computer’s primary level or root directory (root folder) • Some programs use an automated setup that suggests folders for new programs – Example – creating new subfolders under the Program Files folder ...
Quick UNIX Tutorial
... Access rights on directories. r: allows users to list files in the directory; w: means that users may delete files from the directory or move files into it. Never give write permission to others to your home directory or any of its subdirectories. x: means the right to access files in the d ...
... Access rights on directories. r: allows users to list files in the directory; w: means that users may delete files from the directory or move files into it. Never give write permission to others to your home directory or any of its subdirectories. x: means the right to access files in the d ...
Presentation - Virtual Office
... • Defragmenting a Windows NT or Windows 2000 server can be an effective way to enhance performance, depending on how the server is used • Some versions of UNIX come with defragmenting tools, such as defragfs • The tools are limited in that they defragment and return to use existing empty space, but ...
... • Defragmenting a Windows NT or Windows 2000 server can be an effective way to enhance performance, depending on how the server is used • Some versions of UNIX come with defragmenting tools, such as defragfs • The tools are limited in that they defragment and return to use existing empty space, but ...
The Operating System
... of block passed as a parameter in a register This approach taken by Linux and Solaris Parameters placed, or pushed, onto the stack by the program and popped off the stack by the operating system Block and stack methods do not limit the number or length of ...
... of block passed as a parameter in a register This approach taken by Linux and Solaris Parameters placed, or pushed, onto the stack by the program and popped off the stack by the operating system Block and stack methods do not limit the number or length of ...
Operating Systems and File Management
... Boot and Recovery Disks • You can create a custom recovery CD that contains your computer’s current settings and device drivers • Norton Ghost is a product of Symantec, which also provides a more specialized recovery disk called the Symantec Recovery Disk • Certain PC manufacturers have pre-install ...
... Boot and Recovery Disks • You can create a custom recovery CD that contains your computer’s current settings and device drivers • Norton Ghost is a product of Symantec, which also provides a more specialized recovery disk called the Symantec Recovery Disk • Certain PC manufacturers have pre-install ...
Module 3: Operating
... Accounting – keep track of and record which users use how much and what kinds of computer resources for account billing or for accumulating usage statistics. Protection – ensuring that all access to system resources is controlled, ex: firewalls, passwords, file permissions, etc. ...
... Accounting – keep track of and record which users use how much and what kinds of computer resources for account billing or for accumulating usage statistics. Protection – ensuring that all access to system resources is controlled, ex: firewalls, passwords, file permissions, etc. ...
The Macintosh File System (continued)
... – joins the two forks into one, and safely stores the type and creator codes and finder flags ...
... – joins the two forks into one, and safely stores the type and creator codes and finder flags ...
UNIX Operating System
... UNIX Operating System Journaling file system A journaling file system keeps track of the changes that will be made in a journal (usually a circular log in a dedicated area of the file system) before committing them to the main file system. In the event of a system crash or power failure, such file ...
... UNIX Operating System Journaling file system A journaling file system keeps track of the changes that will be made in a journal (usually a circular log in a dedicated area of the file system) before committing them to the main file system. In the event of a system crash or power failure, such file ...