screen in ms-dos environment. The Syntax is C:\>dir CD – This is used to change a directory. The Syntax is RD – This is used to remove any unwanted directory. The Syntax is C:\>RD My File PROMPT – This is just the command line. Example C:\>‚ A:\>‚ D:\> etc. TIME – This is used to view or set the system time. The syntax is C:\> TYPE – This Command will dump the contents of a text file to your screen. The Syntax is C:\type file.txt VER – This is used to view Operating System Version or the
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What are the differences between an interrupt and a trap? What are their importance? According to Stallings (2012) an interrupt is “a suspension of a process‚ such as the execution of a computer program‚ caused by an event external to that process and performed in such a way that the process can be resumed” (p. 716). Stallings (2012) goes on to say that “interrupts are provided primarily as a way to improve processor utilization. For example‚ most I/O devices are much slower than the processor”
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Chapter 4: Threads Operating System Concepts – 8th Edition Silberschatz‚ Galvin and Gagne ©2009 Chapter 4: Threads Overview Multithreading Models Thread Libraries Threading Issues Operating System Examples Windows XP Threads Linux Threads Operating System Concepts – 8th Edition 4.2 Silberschatz‚ Galvin and Gagne ©2009 Objectives To introduce the notion of a thread — a fundamental unit of CPU utilization that forms
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History of Operating Systems Early computers lacked any form of operating system. The user had sole use of the machine; he would arrive at the machine armed with his program and data‚ often on punched paper tape. The program would be loaded into the machine‚ and the machine set to work‚ until the program stopped‚ or maybe more likely‚ crashed. Programs could generally be debugged via a front panel using switches and lights; it is said that Alan Turing was a master of this on the early Manchester
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turn around time can be calculated by using the above algorithm. ALGORITHM: 1) start 2) read the no of processes to n 3) initialize i to 0 4) if ia[j] then a) swap a[i] and a[j] b) swap at[i] and at[j] c) swap b[i] and b[j] 8) from i=0 to n do a) w[i]=s-b[i]-at[i] b) s=s+a[i] c) avg=avg+w[i] 9)tt=tt+avg 10) tt=tt/n 11) avg=avg/n 12)write the turn around time and average waiting time 13) stop 2) AIM: To write a program on Shortest Job First algorithm with Non-Preemption Description:
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as mangers believe a new operating system should replace the old system since its not working well. Challenges include problem with communication effectiveness‚ management of information system (MIS)‚ computer parts supply issues‚ computer’s processing speed and computer failure. Problem statements‚ goals and objectives of the company should be clearly stated. After a group of top managers and senior directors have agreed on a strategic plan focusing solely on the system problems and other challenges
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TWC: Operating Systems and Software Applications University of Phoenix BIS/320 January 14‚ 2013 Dr. Kathryn J. Moland‚ PMP TWC: Operating Systems and Software Applications Time Warner Cable (TWC) is one of the nation’s largest cable companies and being such has a large network of hardware and software at its disposal. According to "Time Warner Cable" (2013)‚ its mission statement is to connect people and businesses with information‚ entertainment‚ and to give customers controls that are
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Resources disc. Principles of Operating Systems: Design & Applications Chapter 1 Introduction to Operating Systems Objectives After studying this chapter‚ the student should: Be able to discuss ways of defining the operating system Understand the different roles the OS plays Have a general picture of the areas of OS responsibility Have a general understanding of the evolution of operating systems 3 Principles of Operating Systems: Design & Applications Objectives
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Topic A Operating System: Windows 8.0 Open Computer. Click properties. In the the left pane click on Advanced system settings Under performance Click Settings Click the Advanced tab. Under Virtual Memory you can change the Virtual Memory. On my computer the minimum size is 16MB and the maximum recommended size is 3313 MB. Topic B Cache memory is on the main chip‚ it can be accessed much more quickly than RAM‚ which is restricted by the BUS speed. Data is held in the Processor cache memory
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Comparison of Linux & Windows Abstract There are a number of operating systems available for personal use as well as small and large businesses. Probably the two most popular are Linux and Windows. In order to determine what operating system best suits your needs‚ it’s important to know some background on Linux and Windows. Some important factors to consider in the selection of an operating system are what are some of the things that make Linux and Windows appealing and what are some of their
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