1. Introduction: An operating system (OS) is a collection of software that manages computer hardware resources and provides common services for computer programs. The operating system is a vital component of the system software in a computer system. Application programs usually require an operating system to function. For any computer to function‚ it must have an operating system (OS). A powered computer with no operating system will only display coded text messages only understandable to the computer
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TYPES OF OPERATING SYSTEM Real-time Operating System: It is a multitasking operating system that aims at executing real-time applications. Real-time operating systems often use specialized scheduling algorithms so that they can achieve a deterministic nature of behavior. The main object of real-time operating systems is their quick and predictable response to events. They either have an event-driven or a time-sharing design. An event-driven system switches between tasks based of their priorities
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Operating System Security Security is the most important part of an operating system when it comes to keeping the system and its information safe. There are various aspects to the security piece in an operating system; which are protocols‚ kernel and encryption. The UNIX/LINIX‚ Apple and Windows Server 2008 all have protocol‚ kernel and encryption features. These features need to be enabled to the highest level in order to have the most security for each of these operating systems. Even
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Network Operating Systems vs. MUOS (Multi-User) Characteristics Different methods of Multi-tasking Multi tasking is when the operating system seems to be performing two or more tasks at the same time‚ i.e. MS Word and MS Access‚ however these tasks are not actually running simultaneously as they are actually resident in memory processor is actually switching between tasks at a very high speed‚ therefore each user sees their own task as having priority. One disadvantage can be that the more
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Introduction to Operating Systems Paper To understand three operating systems‚ you must first know what an operating system is. An operating system is software that controls the computer. It manages hardware‚ run applications‚ provides’ an interface for uses‚ stores‚ retrieves files. Here are three operating systems DOS‚ Windows 2000‚ and Linux. DOS‚ which is a disk operating system was the first OS within IBM computers. DOS was the operating system utilized by early versions of Windows including
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Operating System | Assignment #1 | | Information System | 2012-03-29 | | 1. What is the purpose of interrupts? What are the differences between a trap and an interrupt? Can traps be generated intentionally by a user program? If so‚ for what purpose? (Chapter 1) Interrupt is that causes a computer processor to temporarily stop executing its current program and execute another program instead‚ finally returning control to the original program. So it prevent that more important task
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Linux? Which parts of the Linux operating system did each provide? Who else has helped build and refine this operating system? GNU stands for "GNU’S Not Unix"‚ and it was designed to be a UNIX-like operating system developed by Richard Stallman. Linux is the name of operating system kernel developed by Linus Torvalds. GNU’s tools aside the Linux kernel make the operating system known as “Linux” aka “GNU/Linux”. Thousands of people helped refine the operating system online. Chapter 2 1. Briefly
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1. In a multiprogramming and time sharing environment‚ several users share the system simultaneously. This situation can results in various security problems. a. What are the two such problems? Ans: The two problems in Multiprogramming and time sharing environment are Stealing or copying a user’s files; Writing over another program’s (belonging to another user or to the OS) area in memory; Using system resources (CPU‚ disk space) without proper accounting; Causing the printer to mix output by
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Q- Operating Systems Required - You have different types of machines (laptops‚ desktops‚ servers) which require different operating systems – which ones will you recommend and why? A- According to the research it has revealed that each of the operating systems has its own advantages and disadvantages‚ yet one of them may seem more reliable and competent than the other. I personally think that Windows 7 is the best option‚ given that it’s most widely used by the majority of companies and employees
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An introduction to Android What is Android? Android brings Internet-style innovation and openness to mobile phones. Android delivers a complete set of software for mobile devices: an operating system‚ middle ware and key mobile applications. The Android Software Development Kit (SDK) is now available. Open Android was built from the ground-up to enable developers to create compelling mobile applications that take full advantage of all a handset has to offer. It was built to be truly open
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