Operating Systems Assignment 1 Session: Summer 2013 Faculty of Information Technology UCP Lahore Pakistan Operating Systems Assignment: Introduction and Overview of Operating Systems 150 MARKS Write in your own words to answer the following‚ if you use material from any book website apart from your recommended book please provide so. All work will be assumed yours otherwise. Justify your answers where needed. Explain briefly and concisely 1. You are to procure Linux
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be situations where the system administrator may be required to create new partitions‚ resize existing partitions and sometimes delete partitions as the need arises. 2 CRITICAL ANALYSIS OF WINDOW 7 OPERATING SYSTEM Windows 7 is an operating system that was developed by Microsoft Corporation for computers (laptops‚ notebooks‚ home and business desktops PCs); it was released to the public 3 years after the release of Windows Vista operating system. Unlike Vista‚ Windows 7
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1. Computer System Components (i) Hardware Provides basic computing resources (CPU‚ memory‚ Input/output (I/O) devices). (ii) Operating System (OS) Controls and coordinates the use of the hardware among the various application programs for the various users. (iii) Applications Programs /Application Software Define the ways in which the system resources are used to solve the computing problems of the users (compilers‚ database systems‚ video games‚ business programs). (iv) Users
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From the title we understand that the Patriot is someone who is passionate about his country. We feel he is a hero as he seems to have earnt a heroic status from the public “it was roses‚ roses all the way” this shows the love he got from the public. “it was I who leaped at the sun” illustrates him showing bravery and sacrifice which show traits of a hero. It is later revealed that he has done something wrong‚ this is discovered through him claiming he has been falsely punished and hasn’t done anything
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3.2 Including the initial parent process‚ how many processes are created by the program shown in Figure 3.31? #include <stdio.h> #include <unistd.h> int main() { /* fork a child process */ fork(); /* fork another child process */ fork(); /* and fork another */ fork(); return 0; } Figure 3.31 How many processes are created? Sol: To know how many processes are created we modified the program using getpid() and printf(). Please find the modified program below #include <stdio
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Do you agree or disagree. There is never a reason for death penalty to be used. In some countries‚ serious criminals such as serial murderers and terrorist bomber hardly escape death sentence. While many complement on such tough justice‚ others condemn it mainly for religious reasons. It appears to me that those who are against the death penalty have failed to notice the more humane aspects behind this seemingly inhumane charge. My essay will look at those humane aspects as against those to the
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Merit-based aid programs have been widely adopted in the U.S‚ mainly serving as strategies to improve college access and stem brain strain. Current research on the impact of state merit-based aid programs mostly focus on enrollment effects and have demonstrated that these programs have successfully achieved these two goals (Monks‚ 2008; Ness & Tucker‚ 2008). However‚ there has been just a few studies of the unintended consequences of student major choice and course-taking behaviors influenced by
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OPERATING SYSTEM - FILE SYSTEM http://www.tutorialspoint.com/operating_system/os_file_system.htm Copyright © tutorialspoint.com File A file is a named collection of related information that is recorded on secondary storage such as magnetic disks‚ magnetic tapes and optical disks.In general‚ a file is a sequence of bits‚ bytes‚ lines or records whose meaning is defined by the files creator and user. File Structure File structure is a structure‚ which is according to a required format
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either by an error or by a specific request from a user program that an OS service be performed .Dual-mode Operation allows OS to protect itself and other system components whereas Multimode Operation increasingly CPUs support multi-mode operations. System call provides the means for a user program to ask OS to perform OS tasks on the user program’s behalf. When a system callis executed‚ it is treated by H/W as a S/W interrupt. Timer protects CPU resource from getting stuck by a user program. To ensure
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What are the two differences between user-level and kernel-level threads? Under what circumstances is one type is better than other? Answer: 1- User-level threads are unknown by the kernel‚ whereas the kernel is aware of kernel threads. 2- On systems using either M: 1 or M: N mapping‚ user threads are scheduled by the thread library and the kernel schedules kernel threads. 3- Kernel threads need not be associated with a process whereas every user thread belongs to a process. Kernel threads are
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