Basics of Operating Systems
... basic structure of the operating system, describe the basic functions and features of operating systems, identify one-purpose and multi-tasking systems, as well as single-threaded and multithreaded, will be able to define concurrent processes and characterize the principle of expropriation of proces ...
... basic structure of the operating system, describe the basic functions and features of operating systems, identify one-purpose and multi-tasking systems, as well as single-threaded and multithreaded, will be able to define concurrent processes and characterize the principle of expropriation of proces ...
Layer 1 Process Management
... •MINIX was written in C programming language. •Structured in more modular way than UNIX and is compatible with UNIX from user point of view but totally different from inside. •Many of the basic programs, such as cat, grep, ls, make and the shell are present and perform the same functions as UNIX •MI ...
... •MINIX was written in C programming language. •Structured in more modular way than UNIX and is compatible with UNIX from user point of view but totally different from inside. •Many of the basic programs, such as cat, grep, ls, make and the shell are present and perform the same functions as UNIX •MI ...
pptx
... A discontinued batch processing operating system developed by the IBM Corporation for their then-new System/360 mainframe computer, announced in 1964 ...
... A discontinued batch processing operating system developed by the IBM Corporation for their then-new System/360 mainframe computer, announced in 1964 ...
operating systems - Ronny`s Web Site
... is also called real time executive. The kernel contains all the devices that interact with the hardware. ...
... is also called real time executive. The kernel contains all the devices that interact with the hardware. ...
History of Operating Systems
... program had to be started • Computer had a "Run" button • "Run" button set next instruction counter to first memory location and started execution of ...
... program had to be started • Computer had a "Run" button • "Run" button set next instruction counter to first memory location and started execution of ...
Operating System principles And Multitasking
... Multitasking refers to term where multiple jobs are executed by the ...
... Multitasking refers to term where multiple jobs are executed by the ...
A: Process termination requires reclaim of any reusable resources
... programs, etc., to a previous state in the event of system malfunction or failure. The user may create a new restore point manually, roll back to an existing restore point, or change the System Restore configuration. Files and software that are affected by system restore System Restore will undo pro ...
... programs, etc., to a previous state in the event of system malfunction or failure. The user may create a new restore point manually, roll back to an existing restore point, or change the System Restore configuration. Files and software that are affected by system restore System Restore will undo pro ...
different people attempt to accomplish the
... work that has real impact upon both programming and open source. If you care about these issues, you need to read Nick’s report. ...
... work that has real impact upon both programming and open source. If you care about these issues, you need to read Nick’s report. ...
CSc 352: Systems Programming & Unix
... • Unix is an operating system – sits between the hardware and the user/applications – provides high-level abstractions (e.g., files) and services (e.g., multiprogramming) ...
... • Unix is an operating system – sits between the hardware and the user/applications – provides high-level abstractions (e.g., files) and services (e.g., multiprogramming) ...
Mohammad Husain
... programs either cannot be run automatically on the Linux machine, or simply are not capable of being executed on a 386 architecture Windows is often known for a large amount of loop ...
... programs either cannot be run automatically on the Linux machine, or simply are not capable of being executed on a 386 architecture Windows is often known for a large amount of loop ...
CUSTOMER_CODE SMUDE DIVISION_CODE SMUDE
... UNIX allows them to be used in much the same way as ordinary files. There are two types of devices in UNIX- block-oriented devices which transfer data in blocks and character – oriented devices that transfer data on a byte-by – byte basis. ii.Links: A link is a pointer to another file. There are two ...
... UNIX allows them to be used in much the same way as ordinary files. There are two types of devices in UNIX- block-oriented devices which transfer data in blocks and character – oriented devices that transfer data on a byte-by – byte basis. ii.Links: A link is a pointer to another file. There are two ...
Operating System Structures
... • Memory can be seen as a large array of words or bytes, each having own address; can be accessed quickly by CPU and I/O devices • Main memory is volatile (lost on crash or power-off) • Operating system is responsible for the following tasks: – Memory allocation and freeing when asked by processes – ...
... • Memory can be seen as a large array of words or bytes, each having own address; can be accessed quickly by CPU and I/O devices • Main memory is volatile (lost on crash or power-off) • Operating system is responsible for the following tasks: – Memory allocation and freeing when asked by processes – ...
Introduction
... – Modern O/S allow more than one program to run at a time – Memory is partitioned into units that hold data and instructions for each running process – Memory management is a function of the O/S – In older systems simply swapped programs in and out of memory as needed • Programs had to be no larger ...
... – Modern O/S allow more than one program to run at a time – Memory is partitioned into units that hold data and instructions for each running process – Memory management is a function of the O/S – In older systems simply swapped programs in and out of memory as needed • Programs had to be no larger ...
CUSTOMER_CODE SMUDE DIVISION_CODE SMUDE
... UNIX includes the traditional operating system components. In addition, a standard UNIX system includes a set of libraries and a set of applications. Sitting above the hardware are two components: the file system and process control. Next is the set of libraries. On top are the applications. The use ...
... UNIX includes the traditional operating system components. In addition, a standard UNIX system includes a set of libraries and a set of applications. Sitting above the hardware are two components: the file system and process control. Next is the set of libraries. On top are the applications. The use ...
ppt - CSE Home
... • naming: how are resources named (by users or programs)? • security: how is the integrity of the OS and its resources ensured? • protection: how is one user/program protected from another? • performance: how do we make it all go fast? • reliability: what happens if something goes wrong (either with ...
... • naming: how are resources named (by users or programs)? • security: how is the integrity of the OS and its resources ensured? • protection: how is one user/program protected from another? • performance: how do we make it all go fast? • reliability: what happens if something goes wrong (either with ...
ppt
... • Disk scheduling algorithms • Not particularly relevant except in some database or multimedia systems ...
... • Disk scheduling algorithms • Not particularly relevant except in some database or multimedia systems ...
William Stallings Computer Organization and Architecture
... Allows programs to be altered and recompiled independently, without re-linking and re-loading Lends itself to sharing among processes Lends itself to protection Some systems combine segmentation with ...
... Allows programs to be altered and recompiled independently, without re-linking and re-loading Lends itself to sharing among processes Lends itself to protection Some systems combine segmentation with ...
PPT
... – Access to shared data by many concurrent users – Also background utility processing must be done ...
... – Access to shared data by many concurrent users – Also background utility processing must be done ...
Operating System Concepts
... Provides services to computer user To make more effective use of computer Why do we study it?... To get the knowledge of services ...
... Provides services to computer user To make more effective use of computer Why do we study it?... To get the knowledge of services ...
MINIX 3: status report and current research
... of the system on the fly, without a reboot. We believe it will be possible to replace, for example, the main file system module with a later version while the system is running, without a reboot, and without affecting running processes. While Ksplice [5] can make small patches to Linux on the fly, i ...
... of the system on the fly, without a reboot. We believe it will be possible to replace, for example, the main file system module with a later version while the system is running, without a reboot, and without affecting running processes. While Ksplice [5] can make small patches to Linux on the fly, i ...
OPERATING SYSTEM CONCEPTS
... Switching the CPU to another process requires saving the state of the old process and loading the saved state for the new process. This task is known as a context switch. Context-switch time is pure overhead, because the system does no useful work while switching. Its speed varies from machine to m ...
... Switching the CPU to another process requires saving the state of the old process and loading the saved state for the new process. This task is known as a context switch. Context-switch time is pure overhead, because the system does no useful work while switching. Its speed varies from machine to m ...
OSTEP 13 Address Space
... – program behaves as if it has its own private physical memory – OS and hardware do all the work to multiplex memory among many different processes, and hence implement the illusion ...
... – program behaves as if it has its own private physical memory – OS and hardware do all the work to multiplex memory among many different processes, and hence implement the illusion ...
Judul - my documentation
... • Kernel must remain in memory while the computer runs • If another program uses the kernel’s memory when the kernel needs it, the computer will crash – Memory Management • OS keeps track of memory locations to prevent programs and data from overlapping each other • Swaps portions of programs and da ...
... • Kernel must remain in memory while the computer runs • If another program uses the kernel’s memory when the kernel needs it, the computer will crash – Memory Management • OS keeps track of memory locations to prevent programs and data from overlapping each other • Swaps portions of programs and da ...