Lecture 01 Introduction
... • A microkerner architecture assigns only a few essential functions to the kernel, such as – Address spaces – Interprocess communication – Basic scheduling ...
... • A microkerner architecture assigns only a few essential functions to the kernel, such as – Address spaces – Interprocess communication – Basic scheduling ...
2140702
... 4. Write a shell script to find factorial of given number n. 5. Write a shell script which will accept a number b and display first n prime numbers as output. 6. Write a shell script which will generate first n fibonnacci numbers like: 1, 1, 2, 3, 5, 13,… 7. Write a menu driven shell script which wi ...
... 4. Write a shell script to find factorial of given number n. 5. Write a shell script which will accept a number b and display first n prime numbers as output. 6. Write a shell script which will generate first n fibonnacci numbers like: 1, 1, 2, 3, 5, 13,… 7. Write a menu driven shell script which wi ...
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[intro.pptx]
... declaring the permissions they need for additional capabilities not provided by the basic sandbox. Applications statically declare the permissions they require, and the Android system prompts the user for consent at the time the application is installed. Android has no mechanism for granting permiss ...
... declaring the permissions they need for additional capabilities not provided by the basic sandbox. Applications statically declare the permissions they require, and the Android system prompts the user for consent at the time the application is installed. Android has no mechanism for granting permiss ...
operating system
... An operating system is software installed on the computer to make it possible to use it without needing a degree in electronic engineering ...
... An operating system is software installed on the computer to make it possible to use it without needing a degree in electronic engineering ...
OPERATING SYSTEMS 2015-16 1 OPERATING SYSTEM
... resources must be allocated to each of them Many types of resources - Some (such as CPU cycles, main memory, and file storage) may have special allocation code, others (such as I/O devices) may have general request and release code Accounting - To keep track of which users use how much and what ...
... resources must be allocated to each of them Many types of resources - Some (such as CPU cycles, main memory, and file storage) may have special allocation code, others (such as I/O devices) may have general request and release code Accounting - To keep track of which users use how much and what ...
File
... running task can be stopped and switched out - pre empted – by a higher priority active task. ...
... running task can be stopped and switched out - pre empted – by a higher priority active task. ...
CrossOver Compared to Competing Emulation
... one operating system, starting another, and dealing with the file transfer issues associated with same. “Bootcamp” is the canonical solution of this kind in the Mac space, for instance. “Emulation” products such as VMWare, Win4Lin, and Parallels, on the other hand, actually run Windows applications ...
... one operating system, starting another, and dealing with the file transfer issues associated with same. “Bootcamp” is the canonical solution of this kind in the Mac space, for instance. “Emulation” products such as VMWare, Win4Lin, and Parallels, on the other hand, actually run Windows applications ...
Solaris Zones: Operating System Support for Server Consolidation Andrew Tucker David Comay
... These efforts differ from virtual machine implementations in that there is only one underlying operating system kernel, which is enhanced to provide increased isolation between groups of processes. The result is the ability to run multiple applications in isolation from each other within a single op ...
... These efforts differ from virtual machine implementations in that there is only one underlying operating system kernel, which is enhanced to provide increased isolation between groups of processes. The result is the ability to run multiple applications in isolation from each other within a single op ...
Chapter 1 Introduction to Operating System Part 1
... - An OS allows the computer system resources to be used in an efficient manner 3) Ability to evolve - An OS is constructed in such a way to as to permit the effective development, testing and introduction of new system function without at the same time interfering with service. ...
... - An OS allows the computer system resources to be used in an efficient manner 3) Ability to evolve - An OS is constructed in such a way to as to permit the effective development, testing and introduction of new system function without at the same time interfering with service. ...
Language Based Operating Systems
... segmented memory models. Hardware memory controllers (MMUs) and protection was embedded within CPUs. With the advent of 32-bit computing, memory protection schemes were also implemented in hardware. The flat memory model was adopted. Monolithic kernels were (and still are) the norm. These schemes su ...
... segmented memory models. Hardware memory controllers (MMUs) and protection was embedded within CPUs. With the advent of 32-bit computing, memory protection schemes were also implemented in hardware. The flat memory model was adopted. Monolithic kernels were (and still are) the norm. These schemes su ...
Chapter 1 Computer Basics
... – When the user turns on the computer and starts the operating system, a symbolic desktop is displayed. On this desktop are various objects, or icons. These graphical symbols represent files, disks, programs, and other objects. GUIs permit the user to manipulate these on-screen icons. Most people us ...
... – When the user turns on the computer and starts the operating system, a symbolic desktop is displayed. On this desktop are various objects, or icons. These graphical symbols represent files, disks, programs, and other objects. GUIs permit the user to manipulate these on-screen icons. Most people us ...
Interface - Duke University
... Microsoft embodies tension between these trends MS gained 90% market share by running on cheap hw Supporting all that hardware complicates the OS (3rd-party drivers responsible for vast majority of crashes) ...
... Microsoft embodies tension between these trends MS gained 90% market share by running on cheap hw Supporting all that hardware complicates the OS (3rd-party drivers responsible for vast majority of crashes) ...
ppt - Computer Science
... Fixed high level abstractions hurt application performance Fixed high level abstractions hide information Fixed high level abstractions limit the functionality ...
... Fixed high level abstractions hurt application performance Fixed high level abstractions hide information Fixed high level abstractions limit the functionality ...
Computer Concepts 7
... • An operating system (OS) is the master controller for all of the activities that take place within a computer. – Microsoft Windows XP, Mac OS, Linux, UNIX ...
... • An operating system (OS) is the master controller for all of the activities that take place within a computer. – Microsoft Windows XP, Mac OS, Linux, UNIX ...
Chapter 1
... Process input to faster device More efficient use of CPU Device Independence - program uses logical devices, not physical devices Overlap of I/O and CPU Processing • specialized card readers and printers • satellite processing - small computer does transfer from/to mag tape or disk ...
... Process input to faster device More efficient use of CPU Device Independence - program uses logical devices, not physical devices Overlap of I/O and CPU Processing • specialized card readers and printers • satellite processing - small computer does transfer from/to mag tape or disk ...
PCS 105 ADVANCED OPERATING SYSTEM Course Objective: Introduction:
... PCS 105 ADVANCED OPERATING SYSTEM L ...
... PCS 105 ADVANCED OPERATING SYSTEM L ...
CS 4410/4411 Systems Programming and Operating Systems
... • Multiprogramming systems increased utilization – Developed in the 1960s – Keeps multiple runnable jobs loaded in memory – Overlaps I/O processing of a job with computation of another – Benefits from I/O devices that can operate asynchronously – Requires the use of interrupts and DMA – Optim ...
... • Multiprogramming systems increased utilization – Developed in the 1960s – Keeps multiple runnable jobs loaded in memory – Overlaps I/O processing of a job with computation of another – Benefits from I/O devices that can operate asynchronously – Requires the use of interrupts and DMA – Optim ...
CS4023_-_lecture_02_..
... The source code not included. Enables vendors to hide proprietary information and programming techniques. Free and open-source software became increasingly common in the 1990s: Allows individuals to examine and modify software. Famous example: In 1991, a student in Finland, Linus Torvalds, r ...
... The source code not included. Enables vendors to hide proprietary information and programming techniques. Free and open-source software became increasingly common in the 1990s: Allows individuals to examine and modify software. Famous example: In 1991, a student in Finland, Linus Torvalds, r ...
Operating System
... Since main memory (primary storage) is volatile and too small to accommodate all data and programs permanently, the computer system must provide secondary storage to back up main memory. Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. The o ...
... Since main memory (primary storage) is volatile and too small to accommodate all data and programs permanently, the computer system must provide secondary storage to back up main memory. Most modern computer systems use disks as the principle on-line storage medium, for both programs and data. The o ...
Operating Systems
... The operating system provides supports for other programs. For example, it is responsible for loading other programs into memory for execution. However, the operating system itself is a program that needs to be loaded into the memory and be run. How is this dilemma solved? The solution is a two-stag ...
... The operating system provides supports for other programs. For example, it is responsible for loading other programs into memory for execution. However, the operating system itself is a program that needs to be loaded into the memory and be run. How is this dilemma solved? The solution is a two-stag ...
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 Systems Operating Systems Operating Systems
... – important if there is to be more than one type of computer using the operating system or if the hardware is to change. – A consistent application programming interface (API) allows a software developer to write an application on one computer and have a high level of confidence that it will run on ...
... – important if there is to be more than one type of computer using the operating system or if the hardware is to change. – A consistent application programming interface (API) allows a software developer to write an application on one computer and have a high level of confidence that it will run on ...
Information flow between computer components In this presentation
... does the user enter a command on a table PC like the iPad or a smartphone like the iPhone? 4. When it is turned on, a computer executes a small bootstrap program that checks to see the hardware is working correctly and loads the operating systems into memory. Is that bootstrap program stored in RAM ...
... does the user enter a command on a table PC like the iPad or a smartphone like the iPhone? 4. When it is turned on, a computer executes a small bootstrap program that checks to see the hardware is working correctly and loads the operating systems into memory. Is that bootstrap program stored in RAM ...