APT 2040: OPERATING SYSTEMS Pre
... provides an understanding of the characteristics and the operating principles of the main hardware components of a computer system. In addition, the course covers the concepts and fundamentals of the operating systems. These fundamentals include process management, memory management, and device mana ...
... provides an understanding of the characteristics and the operating principles of the main hardware components of a computer system. In addition, the course covers the concepts and fundamentals of the operating systems. These fundamentals include process management, memory management, and device mana ...
Introduction
... Swapping of a process – Process table entry System calls to create and terminate processes System calls to allocate/deallocate memory System calls for communication - signals ...
... Swapping of a process – Process table entry System calls to create and terminate processes System calls to allocate/deallocate memory System calls for communication - signals ...
Operating System Structures
... relatively large, non-modular kernel access to kernel functions through system calls shells as user interface, GUI (XWindows) added ...
... relatively large, non-modular kernel access to kernel functions through system calls shells as user interface, GUI (XWindows) added ...
Overview of OS/2
... The OS/2 utilizes virtual memory. The key to virtual memory is that it allows the addresses referenced in a running program to be disassociated from the addresses available in primary storage. A processor’s memory management unit (MMU) provides this feature, which is called address translation. The ...
... The OS/2 utilizes virtual memory. The key to virtual memory is that it allows the addresses referenced in a running program to be disassociated from the addresses available in primary storage. A processor’s memory management unit (MMU) provides this feature, which is called address translation. The ...
Networked communities - Ar
... remotely, i.e. if one could communicate with the computer from a distant location and gain access to its resources. Inter-system communication became possible, in stages, through the use of modems and UUCP batch transfer and later through real-time wide area networks. The large mainframe computers w ...
... remotely, i.e. if one could communicate with the computer from a distant location and gain access to its resources. Inter-system communication became possible, in stages, through the use of modems and UUCP batch transfer and later through real-time wide area networks. The large mainframe computers w ...
Najwa Knefati operating system chapter 1
... The multiple-processor systems in two types: Asymmetric multiprocessing, a boss–worker relationship. A boss processor controls the system; the other processors either look to the boss for instruction or have predefined tasks. Symmetric multiprocessing (SMP), SMP means that all processors are peers; ...
... The multiple-processor systems in two types: Asymmetric multiprocessing, a boss–worker relationship. A boss processor controls the system; the other processors either look to the boss for instruction or have predefined tasks. Symmetric multiprocessing (SMP), SMP means that all processors are peers; ...
process
... another job Timesharing (multitasking) is logical extension in which CPU switches jobs so frequently that users can interact with each job while it is running, creating interactive computing Response time should be < 1 second Each user has at least one program executing in memory process If s ...
... another job Timesharing (multitasking) is logical extension in which CPU switches jobs so frequently that users can interact with each job while it is running, creating interactive computing Response time should be < 1 second Each user has at least one program executing in memory process If s ...
DS Chapter 6
... another job Timesharing (multitasking) is logical extension in which CPU switches jobs so frequently that users can interact with each job while it is running, creating interactive computing Response time should be < 1 second Each user has at least one program executing in memory process If s ...
... another job Timesharing (multitasking) is logical extension in which CPU switches jobs so frequently that users can interact with each job while it is running, creating interactive computing Response time should be < 1 second Each user has at least one program executing in memory process If s ...
DOS (“Disk Operating System”)
... Windows File System • C:\Users & … • C:\Documents and Settings – Home Directories • Your own “private” storage real estate. • Each user account has one (by default) • They might exist for users that don’t‘ – Users can get deleted and still leave their home directory ...
... Windows File System • C:\Users & … • C:\Documents and Settings – Home Directories • Your own “private” storage real estate. • Each user account has one (by default) • They might exist for users that don’t‘ – Users can get deleted and still leave their home directory ...
dasan.sejong.ac.kr
... time. Functions that were originally part of the operating system have migrated to the hardware. On the other side, programmed functions extraneous to the problems being solved by the application programs are included in the operating system. ...
... time. Functions that were originally part of the operating system have migrated to the hardware. On the other side, programmed functions extraneous to the problems being solved by the application programs are included in the operating system. ...
Lecture1
... During past 25 years UNIX OS has evolved into a powerful, flexible and versatile OS. It works on Multi-Platform ...
... During past 25 years UNIX OS has evolved into a powerful, flexible and versatile OS. It works on Multi-Platform ...
Allowable Process States - Universitas Pendidikan Indonesia
... contributor to Microsoft's income well after it had become more famous for Windows.” (Wikipedia) • File Management System (FAT) advanced File Management Techniques ...
... contributor to Microsoft's income well after it had become more famous for Windows.” (Wikipedia) • File Management System (FAT) advanced File Management Techniques ...
MS-DOS-&-PC-DOS-by-Lindsey-Buranych-Alan-Crouch
... contributor to Microsoft's income well after it had become more famous for Windows.” (Wikipedia) • File Management System (FAT) advanced File Management Techniques ...
... contributor to Microsoft's income well after it had become more famous for Windows.” (Wikipedia) • File Management System (FAT) advanced File Management Techniques ...
Computers: Tools for an Information Age
... The use of a powerful computer with multiple CPUs Supper computers usually have many processors Personal computers will soon have multiple ...
... The use of a powerful computer with multiple CPUs Supper computers usually have many processors Personal computers will soon have multiple ...
Lecture 15 Designing Trusted Operating Systems Thierry Sans
... Like the Windows NT or BSD kernels (even though considered as hybrid kernels) Discussion between L. Torvalds and A. Tanenbaum ...
... Like the Windows NT or BSD kernels (even though considered as hybrid kernels) Discussion between L. Torvalds and A. Tanenbaum ...
COS 318: Operating Systems OS Structures and System Calls Andy Bavier
... Level N constructed on N-1 Hiding information at each layer Examples: ...
... Level N constructed on N-1 Hiding information at each layer Examples: ...
Operating Systems
... • Caching – copying information into faster storage system; main memory can be viewed as a last cache for secondary storage. ...
... • Caching – copying information into faster storage system; main memory can be viewed as a last cache for secondary storage. ...
pdf
... Some CPUs provide for more than two modes of operation. What are two possible uses of these multiple modes? Answer: Although most systems only distinguish between user and kernel modes, some CPUs have supported multiple modes. Multiple modes could be used to provide a finer-grained security policy. ...
... Some CPUs provide for more than two modes of operation. What are two possible uses of these multiple modes? Answer: Although most systems only distinguish between user and kernel modes, some CPUs have supported multiple modes. Multiple modes could be used to provide a finer-grained security policy. ...
The Evolution of Operating Systems
... – The shell is merely an interface. Good ones are easy to use and increase productivity. Poor ones are hard to figure out, and require wasting time to figure out how to do something. • Apple Macintosh, Microsoft Windows, Gnome and KDE on Linux, Solaris, … • But this is what the user uses! So it is w ...
... – The shell is merely an interface. Good ones are easy to use and increase productivity. Poor ones are hard to figure out, and require wasting time to figure out how to do something. • Apple Macintosh, Microsoft Windows, Gnome and KDE on Linux, Solaris, … • But this is what the user uses! So it is w ...
PCS 105 ADVANCED OPERATING SYSTEM Course Objective: Introduction:
... PCS 105 ADVANCED OPERATING SYSTEM L ...
... PCS 105 ADVANCED OPERATING SYSTEM L ...
Background - The University of Alabama in Huntsville
... • All processors share same physical memory. • Processes (or threads) running on separate processors can communicate and synchronize by reading and writing variables in the shared memory. • SMP: shared memory multiprocessor/ ...
... • All processors share same physical memory. • Processes (or threads) running on separate processors can communicate and synchronize by reading and writing variables in the shared memory. • SMP: shared memory multiprocessor/ ...
Slide 1
... designated to hold input and output on their way into or out of the system. The process of placing items in a buffer so they can be retrieved by the appropriate device when needed is called spooling. ...
... designated to hold input and output on their way into or out of the system. The process of placing items in a buffer so they can be retrieved by the appropriate device when needed is called spooling. ...