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HDD for Operating System Concepts
HDD for Operating System Concepts

... Education and Research Department, Infosys Technologies Limited. This document is not for general distribution and is meant for use only for the person they are specifically issued to. This document shall not be loaned to anyone, within or outside Infosys, including its customers. Copying or unautho ...
Chapter 1
Chapter 1

... 1.1 What is an operating system 1.2 History of operating systems 1.3 The operating system zoo 1.4 Computer hardware review 1.5 Operating system concepts 1.6 System calls 1.7 Operating system structure ...
Introduction
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... 1.2 History of operating systems 1.3 The operating system zoo 1.4 Computer hardware review 1.5 Operating system concepts 1.6 System calls 1.7 Operating system structure ...
Chapter 1 Introduction
Chapter 1 Introduction

... 1.1 What is an operating system 1.2 History of operating systems 1.3 The operating system zoo 1.4 Computer hardware review 1.5 Operating system concepts 1.6 System calls 1.7 Operating system structure ...
Introduction Chapter 1 Introduction What is an Operating System
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... – Hides the messy details which must be performed – Presents user with a virtual machine, easier to use ...
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... used. There are instances where para-virtualization may still have to be implemented, such as the re-routing of interrupts serviced by the guest OS when sharing the platform with Windows. These need to be altered by the VMM at load time according to rules setup by the user prior to load time. Some e ...
Chapter 1 Computer Basics
Chapter 1 Computer Basics

... • Command-driven DOS—short for Disk Operating System—was very popular in the 1980s and early 1990s and runs primarily on PCs (IBM and IBMcompatible). IBM's version of DOS is called PCDOS and Microsoft's version of DOS is called MS-DOS. Both were developed by Microsoft, and they are essentially the s ...
Linux Concepts and key ideas
Linux Concepts and key ideas

... What is an operating system? What is a kernel? An operating system is made up of software instructions that lie between the computer hardware and the application software. At the center is the kernel, which functions to control processes, handles memory management, and manages software and hardware ...
Traditional UNIX kernels
Traditional UNIX kernels

... • Real Time: Operating Systems for information that needs to be updated in real time • Embedded Systems: Systems that are found within another System ...
Rearchitecting System Software for the Cloud - Muli Ben
Rearchitecting System Software for the Cloud - Muli Ben

... priced differently based on supply and demand [1, 2]; they may be available when the price is low and may cease to be available when the price is high. In such an environment, both the users—who pay for resources—and the providers—who pay for infrastructure and operations—have strong economic incent ...
Chapter 1 Introduction
Chapter 1 Introduction

... But others can be running in the background. [Section 1.5] 12. Examples would be number-crunching super computers. In general, any situation where it is not economically feasible to provide one individual workstation with seldom used, expensive, hardware. [Section 1.5] 13. There are an increased num ...
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System Software

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PPT - Course Website Directory
PPT - Course Website Directory

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FCD+ debugging your Windows installation
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... inserted into the PC. This might happen in particular if the device was removed part way through the initial installation process, which can take a minute or so to complete in some circumstances on the first insertion into a given USB port. This will mean uninstalling both the Audio and the HID comp ...
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... Windows XP • It is formerly known by its code name Whistler, which is the Microsoft’s major operating system release. • Windows XP is the end of the line for the six-year-old Windows 9x operating system core. • Microsoft intends to combine all the ease of-use, multimedia, and gaming features that w ...
CSNB334 Advanced Operating Systems Course Introduction
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... ◦ Gain the ability to install and customize Linux operating systems. ◦ Gain knowledge in writing software routines, modules or patches for the operating systems, using respective system calls to implement, debug or tailor device drivers and interrupt handlers. ◦ Be confident in presenting short talk ...
Operating-System Structure
Operating-System Structure

... tend to be less efficient than other types.  These limitations have caused a small backlash against layering in recent years. Fewer layers with more functionality are being designed, providing most of the advantages of modularized code while avoiding the difficult problems of layer definition and i ...
system call - efreidoc.fr
system call - efreidoc.fr

... As we saw last week in a operating system programs are not allowed direct access to any of the resources except CPU and memory and even then the use has limits placed on it. Thus 1. OS handles requests from programs for various resources to do things e.g. input or output something and enforces the l ...
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... Hide that a resource may be moved to another location while in use ...
COS 318: Operating Systems Introduction Margaret Martonosi and Vivek Pai Computer Science Department
COS 318: Operating Systems Introduction Margaret Martonosi and Vivek Pai Computer Science Department

... What an OS does. What services are provided, what functions are performed, what resources are managed, and what interfaces and abstractions are supported.   How the OS is implemented. How the code is structured. What algorithms are used.   Techniques, skills, and "systems intuition" ...
PowerPoint Presentation - Interfaces By: Ben Griffin and
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... A CLI (command line interface) is a user interface to a computer's operating system or an application in which the user responds to a visual prompt by typing in a command on a specified line, receives a response back from the system, and then enters another command, and so forth. The MS-DOS Prompt a ...
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Operating System

... Spooling is an acronym for simultaneous peripheral operations on line. Spooling refers to putting data of various I/O jobs in a buffer. This buffer is a special area in memory or hard disk which is accessible to I/O devices. Operating system does the following activites related to distributed enviro ...
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... 3. Principles of Operating Systems, B. L. Stuart, Cengage learning, India Edition. 4. Operating Systems, A. S. Godbole, 2nd Edition, TMH 5. An Introduction to Operating Systems, P.C.P. Bhatt, PHI. 6. Operating Systems, S, Haldar and A. A. Arvind, Pearson Education. 7. Operating Systems, R. Elmasri, ...
Operating Systems Overview - Physics, Computer Science and
Operating Systems Overview - Physics, Computer Science and

... to hardware, OS must manage new hardware functionality. z OS starts to become a significant software system. z OS also starts to take up significant resources on its own. ...
AUSI-13- (Software)
AUSI-13- (Software)

... • Allows 2 or more programs at the same time • Divide the programs into active and inactive. Active application is called foreground application and inactive application is background application • CPU does not run the programs simultaneously but manage the resources i.e. memory based on active/inac ...
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Mobile operating system

A mobile operating system (or mobile OS) is an operating system for smartphones, tablets, PDAs, or other mobile devices. While computers such as the typical laptop are mobile, the operating systems usually used on them are not considered mobile ones as they were originally designed for bigger stationary desktop computers that historically did not have or need specific ""mobile"" features. This distinction is getting blurred in some newer operating systems that are hybrids made for both uses.Mobile operating systems combine features of a personal computer operating system with other features useful for mobile or handheld use; usually including, and most of the following considered essential in modern mobile systems; a touchscreen, cellular, Bluetooth, Wi-Fi, GPS mobile navigation, camera, video camera, speech recognition, voice recorder, music player, near field communication and infrared blaster.Mobile devices with mobile communications capabilities (e.g. smartphones) contain two mobile operating systems – the main user-facing software platform is supplemented by a second low-level proprietary real-time operating system which operates the radio and other hardware. Research has shown that these low-level systems may contain a range of security vulnerabilities permitting malicious base stations to gain high levels of control over the mobile device.
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