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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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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What are enterprise systems? Provide examples of organizational functions supported by enterprise systems. Enterprise systems‚ according to the text‚ are: a set of integrated software modules and a central database that enables data to be shared by many different business processes and functional areas throughout the enterprise. (Laudon & Laudon‚ 2011)Let’s say‚ for example‚ the financial department of an organization needs to audit all of the orders fulfilled by the Sales and Marketing department
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overview of Unix operating system. It starts by presenting a brief history of the early development of Unix. It concentrates on main aspects of Unix operating system. Key concepts covered are interactive multi-user operating systems‚ the design objectives of Unix‚ file-store organization‚ text processing and programming‚ the role of C programming language with regard to portability and reliable system software‚ process control (signals and fork)‚ error logging and recovery from system failures‚ modifiability
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389‚004 + (5*1‚684) *** NOTE: ME THINKS MY FORMULA IS WRONG DEPENDING ON HOW ROTATIONAL SPEED IS DEFINED. I NOTICED I HAVEN’T USED THE GIVEN INFO OF 500 TRACKS PER SURFACE SO MY HUNCH IS THAT IT SHOULD BE CONFINED WITH VARIABLE IN COMPUTING TIME… Exercise #4 – Given that it takes 1 ms to travel from one track to the next‚ and that the arm is originally positioned at Track 15 moving toward the low-numbered tracks‚ compute how long it will take to satisfy the following requests: 4‚ 40‚ 11‚ 35‚ 7
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Definition of Operating System: An Operating system is a program that controls the execution of application programs and acts as an interface between the user of a computer and the computer hardware. Need of an operating system: When a program written in a high level language is executed by a computer‚ the following steps are followed… The compiler to translate the program is loaded in the memory. The source program is read and loaded in the memory. The source program is compiled into object program
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of old favourites you love all made with Quality ingriendients MENU PAGE MENU Online store View Our Menu Output [pic] Practical 8 Use style sheet to modify the following: • Change background to modify the following: • Change font type‚ face and colour • Align Text • Remove underlines from hyperlinks Style sheet example body {background:#00ff00;} font
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will need to save your work. Next page please. Exercise 1 – Create your first batch file 1. Open the Virtual Box then click start to load Windows 7. 2. If a dialog box appears‚ just click OK. 3. Open an MS-DOS command window. 4. Change to the root directory of the E: drive and create a directory called BatchFiles. You can use this directory to save your batch files. 5. At the MS-DOS prompt‚ open the editor by keying in EDIT and pressing
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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 XP workstation OS‚ how would you use this information for performing a Nessus vulnerability assessment scan? One can use this information
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April 9‚ 2012 Terance Carlson This paper will discuss three main operating systems‚ Windows‚ Linux‚ and OS X. All three of these operating systems have features which are unique unto themselves. Although there may be arguments as to which one of these three operating systems is better it really all comes down to what features are needed for each user. This paper will describe the features that each of these operating systems has to offer. First‚ Microsoft Windows. Microsoft began its dominance
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