A History of Operating Systems To understand and to be prepared for the future of computer support it helps to know the history of operating systems. The operating system is the software that links the user to the computer’s hardware. Early mainframes (the predecessor of the personal computer) did not use an operating system. Programs were loaded onto the mainframe by paper punch cards‚ magnetic or paper tape. The user would start the program and wait for the program to complete‚ or crash
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Introduction about Linux Linux is an operating system that was initially created as a hobby by a young student‚ Linus Torvalds‚ at the University of Helsinki in Finland. Linus had an interest in Minix‚ a small UNIX system‚ and decided to develop a system that exceeded the Minix standards. He began his work in 1991 when he released version 0.02 and worked steadily until 1994 when version 1.0 of the Linux Kernel was released. Linux is developed and released under the GNU General Public License and
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Chapter-1: Exercise Solution 1.1 In a multiprogramming and time-sharing environment‚ several users share the system simultaneously. This situation can result in various security problems. a. What are two such problems? b. Can we ensure the same degree of security in a time-shared machine as in a dedicated machine? Explain your answer. Answer: a. Stealing or copying one’s programs or data; using system resources (CPU‚ memory‚ disk space‚ peripherals) without proper accounting. b. Probably not‚ since any
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memory are lost. In contrast‚ the contents of disk memory are retained even when the computer system is shut down. Main memory is also referred to as real memory or primary memory. • I/O modules: Move data between the computer and its external environment. The external environment consists of a variety of devices‚ including secondary memory devices (e. g.‚ disks)‚ communications equipment‚ and terminals. • System bus: Provides for communication among processors‚ main memory‚ and I/O modules. One of the
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Chapter I PROBLEM AND ITS BACKGROUND 1. Introduction Nowadays‚ various systems expand in different areas of specialization. Most of them created by the demand and to give solutions on common problems encountered by the society. Being organized on everything makes our work fast and efficient. Lyceum of Alabang‚ one of those educational institutions uses a traditional Class Scheduling System wherein the students need to exert more effort looking for their schedule. The students
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1. What should you do if the drive on which you want to install Windows Server 2012 already has a partition on it containing an operating system and data you do not need? Remove the file 2. What should you do if the Where do you want to install Windows? page appears‚ but it does not list any drives or partitions? Check to make sure that the drive is installed correctly in the pc and then if it still occurs you need to reformat the drive to work with windows server. 3. Under what conditions
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(K.J.S.I.E.I.T SION MUMBAI) Operating System CHAPTER 1 CHAPTER 2 CHAPTER 3 CHAPTER 4 CHAPTER 5 CHAPTER 6 CHAPTER 7 CHAPTER 8 CHAPTER 9 CHAPTER 10 CHAPTER 11 CHAPTER 12 CHAPTER 13 CHAPTER 14 CHAPTER 15 SYSTEM SOFTWARE FUNDAMENTAL OF OPERATING SYSTEM PROCESS MANAGEMENT THREAD MANAGEMENT CONCURRENCY CONTROL DEADLOCK MEMORY MANAGEMENT VIRTUAL MEMORY I/O HARDWARE I/O SOFTWARE SECONDARY STORADE MANAGEMENT FILE SYSTEMS PROTECTION SECURITY LINUX SYSTEM CHAPTER 1 SYSTEM SOFTWARE Unit Structure 1.0
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Axia College Material Appendix B LAN Operating Systems Scenarios Read the three scenarios below‚ then answer the questions that follow each scenario. 1. You are the network administrator for a new company that has 10 users and plans to add five more users within a year. The files need to be accessed by all 10 users and each user must have different security rights. What kind of network would you install and how would the pieces and components of this network relate to each other? Define
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Evolution of the U.S. Healthcare System! The US health care had risen from simple home remedies and inherent doctors who received little to no training. Now we have complex‚ scientific‚ technical‚ and bureaucratic system‚ these are often referred to the "medical industrial complex." This complex comprised of the acceptance of the "germ theory" as the main culprit of disease‚ this has pushed the technological advancements in treating disease‚ and in medical training and healing‚ and the advent of
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What is the need of Operating System in a Computer? Explain the facilities provided by an operating system to its users. Also explain the services that are offered by the Operating System Ans: An operating system is an essential software component of a computer system. The basic objectives of an operating system are to make the computer system convenient to use and to utilize computer hardware in an efficient manner. We can define an operating system as a large collection of software‚ which manages
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