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 OS maintains
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Samuel Obasanya CSC 226-051 Fall 2013 October 24‚ 2013 Key Terms Lightweight process; this is the unit of dispatching also known as thread. Multithreading; this refers to the ability of an os to support multiple‚ concurrent paths of Execution within a single process. Kernel-level thread; this is a type of threading in which all of the work of thread management is done by the kernel. Thread; this is a single execution path‚ with an execution stack‚ processor stack‚ and scheduling information
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Operating Systems Assignment #5 Of Chapter 4 Eighth Edition of Operating System Concepts by Avi Silberschatz Peter Baer Galvin & Greg Gagne 2009 4.1 Provide two programming examples in which multithreading does not provide better performance than a single-threaded solution Answer: (1) Any kind of sequential program is not a good candidate to be threaded. An example of this is a program that calculates an individual tax return. (2) Another example is a "shell" program such as
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CS 2203: Operating Systems Centre for Advance Studies in Engineering (CASE) Hand-out 8: Lab 08 Instructions March 2014 Computer Science Department Instructor: Shehreyar Rashid Lab 8: Introduction to Java and Sockets Objectives Write‚ compile‚ and execute Java programs in Linux using command line. Use an IDE to write‚ compile‚ and execute Java programs in Linux. Learn to write client-server application using Sockets. Credits: This lab uses material from Silberschatz‚ Galvin
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Batch Files Exercise 1 – Create your first batch file Exercise 2 – Create a directory structure Exercise 3 – Wildcards example Exercise 4 – Wildcards example Exercise 6 - Wildcards Example Exercise 7 – Copy from one drive to another Exercise 8 – Creating a Directory structure Exercise 9 – Copying and moving files Exercise 10 – Removing directories Exercise 11 – Using the ECHO COMMAND Exercise 12 – Using the call command Exercise 13 – Replaceable parameters Exercise 14
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Chapter 7 Exercise #3 – Given a disk pack with 10 platters yielding 18 recordable surfaces… A = Rotational speed = 10ms B = Transfer rate = 0.1ms/track C = Density per track = 19‚000 bytes D = Number of records to be store = 200‚000 records E = Size of each record = 160 bytes F = Block size = 10 logical records G = Number of tracks per surface = 500 a) Number of blocks per track: (C) / (E*F) 19‚000 / (160*10) 19‚000 / 1600 11.875 11 BLOCKS b) Waste per track: C – (E*F*11)
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CVE listing is a dictionary of publicly known information security vulnerabilities and exposures. IT is hosted by the Office of Cybersecurity and Communications at the U.S. Department of Homeland Security 5. Can Zenmap GUI detect which operating systems are present on IP servers and workstations? Which option includes that scan? Yes‚ the OS detection using TCP/IP stack fingerprinting option includes that scan. 6. If you have scanned a live host and detected that it is running Windows
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Advait 1. If following equations? A) b) c) d) Aptitude Test TCS-1 Awareness Development Initiative is a root of which of the ‚ where b is a rational number‚ then 2. From the top of a tower of height 180 m the angles of depression of two objects on either sides of the tower are 30° and 45°. Find the distance between the two objects. a) b) c) d) 3. A amount of 20‚900 is taken as loan at 9% p.a.‚ compound interest. If it is to be repaid in 2 equal annual instalments‚ what is the value of
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GSIS Benefits | Government Service Insurance System Philippines Benefits Being a member of the GSIS (Government Service Insurance System) is among the greatest rewards of working in the government here in the Philippines. It’s not only about having sustainable retirement pension but also being secured and insured in your entire lifetime career. In this hub‚ I’m gonna discuss and sum up the benefits of being a GSIS member. After publishing about the SSS benefits‚ I’d like to say the GSIS benefits
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Constructivism Discussion Tabitha Fish Northcentral University Social Constructivism Discussion Five key presuppositions of social constructionism A person’s lived reality is relationally constructed. Each person will have their own perception based on their environment‚ family‚ social status‚ gender‚ etc. No two people will see life the same Identity and personal symptoms are related to social systems they are surrounded by. Meanings given to the objects‚ feelings‚ things of importance‚ etc. is
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