ch18
... Each level may be interrupted by code running at a higher level, but will never be interrupted by code running at the same or a lower level ...
... Each level may be interrupted by code running at a higher level, but will never be interrupted by code running at the same or a lower level ...
Answers to Even-numbered Exercises
... Normally, the system administrator cannot decode user passwords. The administrator can assign a new password to a user. Passwords are generally encrypted by a one-way hash so the system can tell when the correct password is entered, but it cannot regenerate the cleartext password. The system applies ...
... Normally, the system administrator cannot decode user passwords. The administrator can assign a new password to a user. Passwords are generally encrypted by a one-way hash so the system can tell when the correct password is entered, but it cannot regenerate the cleartext password. The system applies ...
Presentation
... • This is not enough to handle all the characters needed to represent world languages, including several different alphabets (Greek, Russian, Japanese, and Hindi, for example) • ASCII deals with this problem by employing different character sets, depending on the characters you’re trying to represen ...
... • This is not enough to handle all the characters needed to represent world languages, including several different alphabets (Greek, Russian, Japanese, and Hindi, for example) • ASCII deals with this problem by employing different character sets, depending on the characters you’re trying to represen ...
Slide 1
... Automated System Recovery (ASR) Dynamic disk support Fax service Internet Information Services (IIS)/Personal Web server Encrypting File System (EFS) continued ...
... Automated System Recovery (ASR) Dynamic disk support Fax service Internet Information Services (IIS)/Personal Web server Encrypting File System (EFS) continued ...
Lecture 13
... • Not all disks are bootable – But the 0th block is usually reserved, “just in case” ...
... • Not all disks are bootable – But the 0th block is usually reserved, “just in case” ...
OSPP: The Kernel Abstraction
... • Interrupt handlers are the entry points into the kernel • Interrupt handlers are software! • Interrupt Return instruction (IRET) restores PC and PSR ...
... • Interrupt handlers are the entry points into the kernel • Interrupt handlers are software! • Interrupt Return instruction (IRET) restores PC and PSR ...
a login shell
... • The .cshrc file is read any time a C shell starts • If you write a csh script, you should probably use the -f option to keep C shell scripts from reading .cshrc. • The .login file is read when you start a login shell. In this file you can set: – Environment variables (which UNIX will pass to subsh ...
... • The .cshrc file is read any time a C shell starts • If you write a csh script, you should probably use the -f option to keep C shell scripts from reading .cshrc. • The .login file is read when you start a login shell. In this file you can set: – Environment variables (which UNIX will pass to subsh ...
File Systems
... – How many i-nodes should a file system have? – How many direct and indirect blocks should an i-node have? – What is the “right” block size? ...
... – How many i-nodes should a file system have? – How many direct and indirect blocks should an i-node have? – What is the “right” block size? ...
File Management - Cal Poly computer science
... internal structure of storage media allow file sizes only in certain increments, e.g. disk blocks often not visible to the user © 2000 Franz Kurfess ...
... internal structure of storage media allow file sizes only in certain increments, e.g. disk blocks often not visible to the user © 2000 Franz Kurfess ...
PPT Chapter 13
... • MS-DOS uses a variant of linked allocation that stores the metadata separately from the file data • FAT has one element corresponding to every disk block in the disk – Penalty: FAT has to be accessed to obtain the address of the next disk block • Solution: FAT is held in memory during file process ...
... • MS-DOS uses a variant of linked allocation that stores the metadata separately from the file data • FAT has one element corresponding to every disk block in the disk – Penalty: FAT has to be accessed to obtain the address of the next disk block • Solution: FAT is held in memory during file process ...
OS Lab Manual
... features, but not free of charge. VMware Player is available for personal non-commercial use, or for distribution or other use by written agreement. No support is provided by VMWare, but there is an active community website for discussing and resolving issues. ...
... features, but not free of charge. VMware Player is available for personal non-commercial use, or for distribution or other use by written agreement. No support is provided by VMWare, but there is an active community website for discussing and resolving issues. ...
LINUX
... just successfully been applied to kernel code, but also to application programs for Linux (see e.g. http://www.freshmeat.net). As Linux has become more popular, several different development streams or distributions have emerged, e.g. Redhat, Slackware, Mandrake, Debian, and Caldera. A distribution ...
... just successfully been applied to kernel code, but also to application programs for Linux (see e.g. http://www.freshmeat.net). As Linux has become more popular, several different development streams or distributions have emerged, e.g. Redhat, Slackware, Mandrake, Debian, and Caldera. A distribution ...
Operating Systems - Lecture #5: File Management
... University of Bedfordshire Introduction Interaction with the file manager Files Physical storage allocation Directories File system ...
... University of Bedfordshire Introduction Interaction with the file manager Files Physical storage allocation Directories File system ...
Operating-System Structures
... Three general methods used to pass parameters to the OS Simplest: pass the parameters in registers In some cases, may be more parameters than registers Parameters stored in a block, or table, in memory, and address of block passed as a parameter in a register This approach taken by Linux and ...
... Three general methods used to pass parameters to the OS Simplest: pass the parameters in registers In some cases, may be more parameters than registers Parameters stored in a block, or table, in memory, and address of block passed as a parameter in a register This approach taken by Linux and ...
Operating Systems and File Management
... 042200 Today’s popular operating systems include Windows, Mac OS, Linux, Android, and iOS. Each has strengths and weaknesses that are important to understand. Which of the following statements is correct? A. iOS is built on the Windows kernel, so it is ideal for smartphones because it has good r ...
... 042200 Today’s popular operating systems include Windows, Mac OS, Linux, Android, and iOS. Each has strengths and weaknesses that are important to understand. Which of the following statements is correct? A. iOS is built on the Windows kernel, so it is ideal for smartphones because it has good r ...
Introduction to Unix
... Linux (see e.g. http://www.freshmeat.net). As Linux has become more popular, several different development streams or distributions have emerged, e.g. Redhat, Slackware, Mandrake, Debian, and Caldera. A distribution comprises a prepackaged kernel, system utilities, GUI interfaces and application pro ...
... Linux (see e.g. http://www.freshmeat.net). As Linux has become more popular, several different development streams or distributions have emerged, e.g. Redhat, Slackware, Mandrake, Debian, and Caldera. A distribution comprises a prepackaged kernel, system utilities, GUI interfaces and application pro ...
Ch 1 Getting Started with the Operating System
... disk drive, and one Zip drive Two hard disk drives, one CD-ROM drive, and one floppy disk drive One hard disk drive, one CD-ROM drive, one readwrite CD-ROM drive, and one floppy disk drive Ch1 ...
... disk drive, and one Zip drive Two hard disk drives, one CD-ROM drive, and one floppy disk drive One hard disk drive, one CD-ROM drive, one readwrite CD-ROM drive, and one floppy disk drive Ch1 ...
Standard Operating and Maintenance Procedures
... • Web browsers write an impressive number of temporary Internet files that are not deleted, unless you set an expiration date, or delete them using an OS utility or utility that comes with the Web browser. • In most cases, the files can be deleted regularly. – Some cookies may be kept because they c ...
... • Web browsers write an impressive number of temporary Internet files that are not deleted, unless you set an expiration date, or delete them using an OS utility or utility that comes with the Web browser. • In most cases, the files can be deleted regularly. – Some cookies may be kept because they c ...
Slide 1
... Within a single program, multithreading allows multiple parts, or threads, to run simultaneously A multiprocessing capability supports a division of labor among all the processing units A memory leak is when an application requests memory but ...
... Within a single program, multithreading allows multiple parts, or threads, to run simultaneously A multiprocessing capability supports a division of labor among all the processing units A memory leak is when an application requests memory but ...
Slide 1
... Within a single program, multithreading allows multiple parts, or threads, to run simultaneously An operating system’s multiprocessing capability supports a division of labor among all the processing units ...
... Within a single program, multithreading allows multiple parts, or threads, to run simultaneously An operating system’s multiprocessing capability supports a division of labor among all the processing units ...
File System
... ‘Operating System Concepts, 9th Edition, Abraham Silberschatz, Peter B. Galvin and Greg Gagne, Wiley’ Chapters 10 and 11 ...
... ‘Operating System Concepts, 9th Edition, Abraham Silberschatz, Peter B. Galvin and Greg Gagne, Wiley’ Chapters 10 and 11 ...
z/VM Conversational Monitor System (CMS)
... 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 product for z/VM that enables complex tasks to be specified and execute ...
... 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 product for z/VM that enables complex tasks to be specified and execute ...
Embedding Object Files in an Existing Operating System: A Practical Approach
... methods) to the system, the file transformation will start by activating the compression method to compress the data file. The compressed data will be read and kept in a buffer. And the first bit of an Object File will be set as a false value (b=0) indicating a non-inheriting file. Then the system w ...
... methods) to the system, the file transformation will start by activating the compression method to compress the data file. The compressed data will be read and kept in a buffer. And the first bit of an Object File will be set as a false value (b=0) indicating a non-inheriting file. Then the system w ...
Operating Systems File System File System File System Functions
... of E&IT, Warsaw University of Technology/* if it cannot be opened,Operating / File System – p. 6/37 out_fd = creat(argv[2], OUTPUT _MODE); /* create the destination file */ ...
... of E&IT, Warsaw University of Technology/* if it cannot be opened,Operating / File System – p. 6/37 out_fd = creat(argv[2], OUTPUT _MODE); /* create the destination file */ ...