A: Process termination requires reclaim of any reusable resources
... Safe mode typically provides access to utility and diagnostic programs so a user can troubleshoot what is preventing the operating system from working normally. Safe mode is intended for maintenance, not functionality, and provides minimal access to features. How to get to system restore: By pressin ...
... Safe mode typically provides access to utility and diagnostic programs so a user can troubleshoot what is preventing the operating system from working normally. Safe mode is intended for maintenance, not functionality, and provides minimal access to features. How to get to system restore: By pressin ...
Directories
... (mp3 files), picture, movie, sound, book etc. • In fact whatever you store in computer it must be in the form of file. • File is the last object in your file system tree. ...
... (mp3 files), picture, movie, sound, book etc. • In fact whatever you store in computer it must be in the form of file. • File is the last object in your file system tree. ...
continued…
... Standard designed to make installation of hardware devices easier Applies to OS, system BIOS, and hardware devices Supported by Windows 9x and Windows 2000/XP but not by Windows NT ESCD (extended system configuration data) Plug and Play BIOS: creates a list of all things you have done manually to th ...
... Standard designed to make installation of hardware devices easier Applies to OS, system BIOS, and hardware devices Supported by Windows 9x and Windows 2000/XP but not by Windows NT ESCD (extended system configuration data) Plug and Play BIOS: creates a list of all things you have done manually to th ...
Lecture 1 - Concepts of the UNIX Operating System
... ARGUMENTS. COMMAND ARGUMENTS NEED NOT BE KNOWN IN ADVANCE. ALLOWS DESIGNING OF APPLICATIONS THAT DETERMINE THEIR OWN BEHAVIOR BY READING CONFIGURATION FILES. ...
... ARGUMENTS. COMMAND ARGUMENTS NEED NOT BE KNOWN IN ADVANCE. ALLOWS DESIGNING OF APPLICATIONS THAT DETERMINE THEIR OWN BEHAVIOR BY READING CONFIGURATION FILES. ...
Lesson 1 Communicating with the System - people
... platform, functionally rich set of programs. It Controls traditional computer system functions. Primarily Green Screen/text-based presentation iSeries Model 820 supports Logical Partitioning ...
... platform, functionally rich set of programs. It Controls traditional computer system functions. Primarily Green Screen/text-based presentation iSeries Model 820 supports Logical Partitioning ...
Operating-System Structure
... Typically written in a high-level language (C or C++) Mostly accessed by programs via a high-level Application Program Interface (API) rather than direct system call use Three most common APIs are Win32 API for Windows, POSIX API for POSIX-based systems (including virtually all versions of UNI ...
... Typically written in a high-level language (C or C++) Mostly accessed by programs via a high-level Application Program Interface (API) rather than direct system call use Three most common APIs are Win32 API for Windows, POSIX API for POSIX-based systems (including virtually all versions of UNI ...
ppt
... • Routines that interact with disks are typically at a very low level in the OS – used by many components (file system, VM, …) – handle scheduling of disk operations, head movement, error handling, and often management of space on disks ...
... • Routines that interact with disks are typically at a very low level in the OS – used by many components (file system, VM, …) – handle scheduling of disk operations, head movement, error handling, and often management of space on disks ...
Operating Systems
... Create a file : Allocate space, record name and location Writing a file: Data entry Reading a file Deleting a file: Release file space Truncate a file: Erase user content data in a file ...
... Create a file : Allocate space, record name and location Writing a file: Data entry Reading a file Deleting a file: Release file space Truncate a file: Erase user content data in a file ...
Unix hardware level
... • Unix OS was written by programmer to programmer. It use C language to instead of the previously used assembly language •Time-sharing, multi-user, multi-tasking are basic designed in the system(Multiple users can have multiple tasks running at same time) ...
... • Unix OS was written by programmer to programmer. It use C language to instead of the previously used assembly language •Time-sharing, multi-user, multi-tasking are basic designed in the system(Multiple users can have multiple tasks running at same time) ...
Architectural Support for Operating Systems
... – The small version of the O/S loads and starts the “big” version. • The two stage mechanism is used so that BIOS won’t need to understand the file system implemented by the “big” O/S kernel • File systems are complex data structures and different kernels ...
... – The small version of the O/S loads and starts the “big” version. • The two stage mechanism is used so that BIOS won’t need to understand the file system implemented by the “big” O/S kernel • File systems are complex data structures and different kernels ...
Architectural Support for Operating Systems
... – The small version of the O/S loads and starts the “big” version. • The two stage mechanism is used so that BIOS won’t need to understand the file system implemented by the “big” O/S kernel • File systems are complex data structures and different kernels ...
... – The small version of the O/S loads and starts the “big” version. • The two stage mechanism is used so that BIOS won’t need to understand the file system implemented by the “big” O/S kernel • File systems are complex data structures and different kernels ...
2. OS Components
... o Another option, in an interactive system, is to ask the user (via a sequence of system calls to output the prompting message and to read the response from the terminal) whether to replace the existing file or to abort the program. When both files are set up, we enter a loop o that reads from the i ...
... o Another option, in an interactive system, is to ask the user (via a sequence of system calls to output the prompting message and to read the response from the terminal) whether to replace the existing file or to abort the program. When both files are set up, we enter a loop o that reads from the i ...
eFS: encrypted File system
... Design and Implementation Ideas.. Many of the Implementation that we have seen here, has a kernel level implementation of the file system. Certain implementations have also user level daemons running that call the kernel level programs ( e.g.: NFS) I am just describing one system architecture, ...
... Design and Implementation Ideas.. Many of the Implementation that we have seen here, has a kernel level implementation of the file system. Certain implementations have also user level daemons running that call the kernel level programs ( e.g.: NFS) I am just describing one system architecture, ...
Lesson 8
... called file systems. The Linux partition used to install the Linux system on is called the root partition. The root partition ( indicated by a single slash, /) contains the main file system and user subdirectories. To access files on another file system, say a CD-ROM, you need to attach that file sy ...
... called file systems. The Linux partition used to install the Linux system on is called the root partition. The root partition ( indicated by a single slash, /) contains the main file system and user subdirectories. To access files on another file system, say a CD-ROM, you need to attach that file sy ...
Chapter 16 PowerPoint
... Microsoft Windows 95 was the first 32-bit version. All applications designed for Windows have standard interfaces. Multitasking allows users to have more than one application open. ...
... Microsoft Windows 95 was the first 32-bit version. All applications designed for Windows have standard interfaces. Multitasking allows users to have more than one application open. ...
operating systems
... e. Communications: One process might need to exchange information with another process. Such communication may occur between processes that are executing on the same computer or between processes that are executing on different computer systems tied together by a computer network. Communications may ...
... e. Communications: One process might need to exchange information with another process. Such communication may occur between processes that are executing on the same computer or between processes that are executing on different computer systems tied together by a computer network. Communications may ...
Unix
... There is still one more step to obtain your executable. It is called “linking.” Linking brings together all library functions that you included, all of your own functions, and your main function and an executable file is created. % g++ mypgm.o The same command is used for linking. [You can have link ...
... There is still one more step to obtain your executable. It is called “linking.” Linking brings together all library functions that you included, all of your own functions, and your main function and an executable file is created. % g++ mypgm.o The same command is used for linking. [You can have link ...
Unix
... A preprocessor directive is any line that begins with a # e.g. #include
Notice that preprocessor directives are
not C++ statements, and therefore do
not terminate in a ;
...
... A preprocessor directive is any line that begins with a # e.g. #include
slides.01.pdf
... Problem: We need to have a means for storing and retrieving data associated with a program, independent of whether a process is executing that program. Model: A file is an abstraction of a real storage device (e.g. disk): you can read/write data from/to a file by providing (1) a position in that fil ...
... Problem: We need to have a means for storing and retrieving data associated with a program, independent of whether a process is executing that program. Model: A file is an abstraction of a real storage device (e.g. disk): you can read/write data from/to a file by providing (1) a position in that fil ...
Operating System
... System calls provide the interface between a running program and the operating system. – Generally available as assembly-language instructions. – Languages defined to replace assembly language for systems programming allow system calls to be made directly (e.g., C. Bliss, PL/360) Three general metho ...
... System calls provide the interface between a running program and the operating system. – Generally available as assembly-language instructions. – Languages defined to replace assembly language for systems programming allow system calls to be made directly (e.g., C. Bliss, PL/360) Three general metho ...
UNIX/LINUX
... not mean that every version is free to get. A person can build their own Linux operating system and then sell that to others. ...
... not mean that every version is free to get. A person can build their own Linux operating system and then sell that to others. ...
operating systems - Ronny`s Web Site
... • USER VIEW:- User view of the computer varies by the interface being use. System which consist of a monitor , keyboard , mouse and system units design for one user to monopolize its resources. • SYSTEM VIEW:- The operating system is the program that is most intimate with the hardware . We can view ...
... • USER VIEW:- User view of the computer varies by the interface being use. System which consist of a monitor , keyboard , mouse and system units design for one user to monopolize its resources. • SYSTEM VIEW:- The operating system is the program that is most intimate with the hardware . We can view ...
NETWORK OPERATING SYSTEMS
... application programs or system utilities accesses Kernel's features. These libraries implements most of the functionalities of the operating system and do not requires kernel module's code access rights. Because a kernel can't do much out of itself, it must be triggered to perform tasks. Such trigge ...
... application programs or system utilities accesses Kernel's features. These libraries implements most of the functionalities of the operating system and do not requires kernel module's code access rights. Because a kernel can't do much out of itself, it must be triggered to perform tasks. Such trigge ...