is the permission to run or execute a file. A UNIX system sets up three classifications for its users; an owner or user‚ a group‚ and the other. First is the owner‚ which is the creator of a file‚ or the user at a specific time of a file. A group is a class to which the user or owner belongs. A group could be a department of a company or any other type of grouping with specific members. Last‚ the other is the general World Wide Web audience (“Unix Protection and Permissions”‚ n.d.). A review
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8 The * In the early 1990s‚ UNIX-based workstations comprised 85-90% of the workstation market. * In the year of 98‚ NT workstations outshipped UNIX-based machines by more than 1 million units‚ -> but UNIX still accounted for 54% of workstation market revenue. * OS market shares in 99 * MS OS ran on 90% * Apple on 4% * Amiga and others OS was in incompetible‚ => an app written for one OS could not run on another. UNIX were developed by AT&T‚ but licensed
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Note – This man of computer science been chosen by me as to remember the achievement that being done by him for this world and as to remember that he just passed away on 8th October 2011 but haven’t got the appreciation for what he has done. Rest in peace‚ Dennis Ritchie. Background Dennis MacAlistair Ritchie was born in Bronxville‚ New York‚ on September 9‚ 1941‚ and grew up in New Jersey‚ where his father‚ Alistair Ritchie‚ worked as a switching systems engineer for Bell Laboratories. His
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What is Linux? Which parts of the Linux operating system did each provide? Who else has helped build and refine this operating system? GNU a group dedicated to creating an operating system compatible with the Unix software system. Linux is based off the original Unix operating software. Unix provided the kernel‚ while Linux provided the interface that people used in place of another operating system like windows or apples own software. Linus Torvalds developed the Linux kernel‚ and Richard Stallman
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to manage the file system in Unix‚ which would be adequate‚ but an alternative protection scheme may be more efficient for the system to allow access to all but 10 users. Traditional Unix systems use file access control to prevent unauthorized access to certain files and file directories. This type of protection works well for systems supporting small numbers of users and groups. For larger numbers of users and groups‚ access control lists are more effective. Unix File Management Traditional
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by pointing and clicking. NT also comes bundled with a singular set of Microsoft site development tools. Linux‚ on the other hand‚ builds from the long‚ varied tradition of Unix command-line culture. It can be harder (or at least more daunting) to learn Unix from scratch than it is to learn a Windows system‚ but Unix users who get over the hump of the initial learning curve rarely express happiness over trying to do the same work in a Windows environment. That’s the "Windows rage" you observe
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on enterprise computing. It provided more than 1.3 Million UNIX based systems(HP-UX). The sales of HP were almost up to $10B in 1997 where the total market was estimated to be over $60B. ! ! HP was the lead supplier of UNIX based servers through the years 1993 to 1997. On the other hand‚ SUN Microsystems were also competing with HP for UNIX servers and were emerging strong in the market. By summer 1998‚ SUN was a leading UNIX server vendor with their own proprietary operating system SOLARIS
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operating system depends on a number of factors. Various types of operating system are available with different features‚ characteristics and operational requirements. Some most popular OS are: MS-DOS‚ Windows NT‚ Windows 9.x‚ Windows 2000/XP‚ UNIX‚ Linux‚ Mac OS etc. Hardware Operating system Application programs Users Role of an operating system. Why do we need a operating system ? When a program is written in high level language and is executed by a computer‚ the following
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A Definition of Open Source Open source technology is defined as the production and development philosophy of allowing end users and developers to not only see the source code of software‚ but modify it as well. The Linux operating system is a one of the best-known examples of open source software technology. Pros and Cons of Open Source for Developers From a developer’s point of view‚ open source technologies provide a platform on which to build custom solutions. Rather than develop‚ say
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UNIX‚ Linux‚ and Windows Server Critique POS/420 Name Professor Date University of Phoenix Abstract The following sections in this paper focus on analyzing operating systems for Riordan Manufacturing Inc. that specializes in plastic molding and design. Team B concentrated on five main areas of UNIX‚ Linux‚ and Windows Server. The five areas include Security‚ Administration‚ Networking‚ Performance‚ and Programmability. The team explains the existing systems‚ followed by comparing advantages
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