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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Operating System An operating system (OS) is a collection of software that manages computer hardware resources and provides common services for computer programs. It is a program designed to run other programs on a computer. The operating system is an essential component of the system software in a computer system. Application programs usually require an operating system to function. Time-sharing operating systems schedule tasks for efficient use of the system and may also include accounting software
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Chapter no | Topic | 1 | Introduction‚ Types ‚ Computer System Overview | 2 | Operating System Structure‚ Components and Functions‚ Virtual Machine | 3 | Process Concept‚ Operation‚ Process scheduling‚ symmetric multi -processing‚ Cooperating Processes | 4 | Thread Concept‚ Thread Vs Process‚ IPC ‚kernel ‚microkernel | 5 | Scheduling‚ Types‚ Scheduling in batch‚ interactive and real-time systems (SJN‚ SJF‚ FIFO‚ LJN‚ round-robin‚ priority scheduling‚ and hybrid schemes). | 6 | Deadlock:
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Practical – 1 Chalk out the storyboard and design of Diary Food Limited. As the name reflects your site Dairy Products and aims at opening on online store. Your storyboard should cover all the features that you plan to have on the site. Design of online dairy products Online shopping Welcome to Online Store List of dairy Products Products Rates Milk 20Rs./Kg Curd 20Rs./Kg
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represent the number of bags of cowries paid to the groom’s family. This bundle of sticks is exchanged non-verbally until a decision is made with the price. Also‚ they practice polygamy where it is normal for a man to have more than one wife; in contrast it is a taboo for a woman to have more than one husband. The more wives a husband has the richer he is. It shows he is able to support and feed all of them. Women are usually the ones who make the food for everyone and the husband is the first person
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separate set of register values and a separate stack. 4.4) Output at LINE C is 5. Output at LINE P is 0. 4.6) 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-
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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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‘The Woodspurge’ by Dante Gabriel Rossetti and ‘Continuum’ by Allen Curnow are both poems that deal with a sense of detachment the poet experiences. In ‘Continuum’‚ Curnow illustrates his mental state of being uninspired and slightly abashed at his lack of poetic inspiration whereas in ‘The Woodspurge’‚ Rossetti describes his depressive condition‚ possibly due to relationship issues. Both poets seem to be stuck‚ and remain trapped in their minds throughout the poems. ‘Continuum’ begins with Curnow
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formatted the same in two inventory files‚ you decided to combine their contents into one file. Now you want to determine if there are duplicate entries on consecutive lines in the new file. Which of the following commands enables you to find the duplicate entries? Answer: c. uniq 6. Your friend is using the command comm entryfile‚ but is getting an error message. What is the problem? (Choose all that apply.) Answer: d. It is necessary to specify two files when you use the
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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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