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Introduction
Introduction

... Every program that needs to carry out this operation would have to include code to do so Also, program might have to be modified when devices are changed (e.g. a faster CD-ROM is installed in the computer). ...
CENG334 Introduction to Operating Systems
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... User applications see flat files arranged in a hierarchical namespace ...
CENG334 Introduction to Operating Systems
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... The decentralization of computing resource, now data and not the hardware, required more support for inter-operating system communication — both physical support and application program support. As minicomputers shrunk in size, but exploded in capacity, the powerful computer workstation was born. Co ...
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Computer Science 8530 Advanced Operating Systems Fall 2016
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... Supports a single user Runs single-user applications Shares files and folders on a small network with limited security 1. Microsoft Windows 2. Apple Mac OS 3. Unix/Linux Unix Linus Torvalds The source code can be distributed and changed by anyone as a free download or from other developers 1. Suppor ...
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... • Modern operating systems are those which provide good support for these three features. – All of the UNIX variants, Linux, Mac OS X and Windows NT, 2000 and XP provide support for these features. ...
OPERATING SYSTEM FUNCTIONS
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... In computing, the kernel is the main component of most computer operating systems; it is a bridge between applications and the actual data processing done at the hardware level. The kernel's responsibilities include managing the system's resources (the communication between hardware and software com ...
CSC221 COMPUTER ORGANZIATION AND ASSEMBLY LANGUAGE
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... What is an Operating System? • A program that acts as an intermediary between a user of a computer and the computer hardware.` • An operating system is a software that manages the computer hardware and provides basis for application programs. • The main goals of operating system are: • Execute user ...
Operating Systems I Introduction to Operating Systems MCT260-Operating Systems I
Operating Systems I Introduction to Operating Systems MCT260-Operating Systems I

... • There are many types of computers intended for various purposes. Therefore, they operate in different ways. • The operating system dictates what the computer can do and how the computer does it. MCT260-Operating Systems I ...
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... software that is needed to run the programs on a computer or a mobile device. The programs that run on an operating system talk to the hardware. ...
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... language and co-inventor, with Ken Thompson, of Unix was interviewed in February 2003. The following is from that interview. ...
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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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