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Lecture Operating system concepts (Fifth edition): Module 13 - Avi Silberschatz, Peter Galvin
Module 13 - Secondary storage structure. In this chapter we describe the internal data structures and algorithms used by the operating system to implement this interface. We also discuss the lowest level of the file system the secondary storage structure. We first describe disk-head-scheduling algorithms. Next we discuss disk formatting and management of boot blocks, damaged blocks, and swap space. We end with coverage of disk reliability and stable-storage.
6/2/2019 11:44:08 PM +00:00
Lecture Operating system concepts (Fifth edition): Module 12 - Avi Silberschatz, Peter Galvin
Module 12 - I/O systems. The role of the operating system in computer I/O is to manage and control I/O operations and I/O devices. Although related topics appear in other chapters, here we bring together the pieces to paint a complete picture. In this chapter we describe I/O Structure, Devices, Device Drivers, Caching, and Terminal I/O.
6/2/2019 11:44:01 PM +00:00
Lecture Operating system concepts (Fifth edition): Module 11 - Avi Silberschatz, Peter Galvin
Module 11 - File-system implementation. In this chapter we discuss various methods for storing information on secondary storage. The basic issues are device directory, free space management, and space allocation on a disk.
6/2/2019 11:43:54 PM +00:00
Lecture Operating system concepts (Fifth edition): Module 10 - Avi Silberschatz, Peter Galvin
Module 10 - File-system interface. In this chapter, we consider the various aspects of files and the major directory structures. We also discuss the semantics of sharing files among multiple processes, users, and computers. Finally, we discuss ways to handle file protection, necessary when we have multiple users and we want to control who may access files and how files may be accessed.
6/2/2019 11:43:47 PM +00:00
Lecture Operating system concepts (Fifth edition): Module 9 - Avi Silberschatz, Peter Galvin
Module 9 - Virtual memory. Virtual memory can be a very interesting subject since it has so many different aspects: page faults, managing the backing store, page replacement, frame allocation, thrashing, page size. The objectives of this chapter are to explain these concepts and show how paging works.
6/2/2019 11:43:39 PM +00:00
Lecture Operating system concepts (Fifth edition): Module 8 - Avi Silberschatz, Peter Galvin
Module 8 - Memory management. After completing this unit, you should be able to: Explain the difference between logical and physical addresses, explain the difference between internal and external fragmentation, explain the following allocation algorithms.
6/2/2019 11:43:32 PM +00:00
Lecture Operating system concepts (Fifth edition): Module 7 - Avi Silberschatz, Peter Galvin
Module 7 - Deadlocks. After studying this chapter you will be able to develop a description of deadlocks, which prevent sets of concurrent processes from completing their tasks; to present a number of different methods for preventing or avoiding deadlocks in a computer system.
6/2/2019 11:43:24 PM +00:00
Lecture Operating system concepts (Fifth edition): Module 6 - Avi Silberschatz, Peter Galvin
Module 6 - Process synchronization. Chapter 6 is concerned with the topic of process synchronization among concurrently executing processes. Concurrency is generally very hard for students to deal with correctly, and so we have tried to introduce it and its problems with the classic process coordination problems: mutual exclusion, bounded-buffer, readers/writers, and so on. An understanding of these problems and their solutions is part of current operating system theory and development.
6/2/2019 11:43:16 PM +00:00
Lecture Operating system concepts (Fifth edition): Module 5 - Avi Silberschatz, Peter Galvin
Module 5 - CPU scheduling. CPU scheduling is the basis of multiprogrammed operating systems. By switching the CPU among processes, the operating system can make the computer more productive. In this chapter, we introduce the basic scheduling concepts and discuss in great length CPU scheduling. FCFS, SJF, Round-Robin, Priority, and the other scheduling algorithms should be familiar to the students.
6/2/2019 11:43:08 PM +00:00
Lecture Operating system concepts (Fifth edition): Module 4 - Avi Silberschatz, Peter Galvin
In this chapter we introduce the concept of a process and the notion of concurrent execution. Those are at the very heart of modern operating systems. A process is is a program in execution and is the unit of work in a modern time-sharing system. Such a system consists of a collection of processes: Operating-system processes executing system code, and user processes executing user code. This chapter also discuss the notion of a thread (light-weight process) and interprocess communication (IPC).
6/2/2019 11:43:00 PM +00:00
Lecture Operating system concepts (Fifth edition): Module 3 - Avi Silberschatz, Peter Galvin
Chapter 3 is concerned with the operating system interfaces that users (or at least programmers) actually see: control cards and system calls. The treatment is somewhat vague since more detail requires picking a specific system to discuss. This chapter is best supplemented with exactly this detail for the specific system the students have at hand. They should study the control card (or command) semantics and syntax; ideally they should study the system calls and write some programs making system calls.
6/2/2019 11:42:53 PM +00:00
Lecture Operating system concepts (Fifth edition): Module 2 - Avi Silberschatz, Peter Galvin
Module 2 - Computer-system structures. Chapter 2 discusses the general structure of computer systems. It may be a good idea to review the basic concepts of machine organization and assembly language programming. The students should be comfortable with the concepts of memory, CPU, registers, I/O, interrupts, instructions, and the instruction execution cycle. Since the operating system is the interface between the hardware and user programs, a good understanding of operating systems requires an understanding of both hardware and programs.
6/2/2019 11:42:45 PM +00:00
Lecture Operating system concepts (Fifth edition): Module 1 - Avi Silberschatz, Peter Galvin
Module 1 - Introduction. In this chapter, you will learn to: To describe the basic organization of computer systems, to provide a grand tour of the major components of operating systems, to give an overview of the many types of computing environments, to explore several open-source operating systems.
6/2/2019 11:42:38 PM +00:00
Ở ngưỡng cửa của cách mạng lượng tử trong tin học
Bài viết tập trung giới thiệu về lĩnh vực vật lý mới, cụ thể là Lượng tử Thông tin và máy tính lượng tử. Đồng thời giới thiệu một số khái niệm cơ bản trong ba khoa học liên quan: Khoa học máy tính, toán học và vật lý.
6/2/2019 10:44:20 PM +00:00
Lecture Operating systems: Internalsand design principles (7/e): Chapter 12 - William Stallings
Chapter 12 - File management. After studying this chapter, you should be able to: Describe the basic concepts of files and file systems, understand the principal techniques for file organization and access, explain file directories,...
6/2/2019 9:41:27 PM +00:00
Lecture Operating systems: Internalsand design principles (7/e): Chapter 11 - William Stallings
Chapter 11 - I/O management and disk scheduling. After studying this chapter, you should be able to: Summarize key categories of I/O devices on computers, discuss the organization of the I/O function, explain some of the key issues in the design of OS support for I/O,...
6/2/2019 9:41:08 PM +00:00
Lecture Operating systems: Internalsand design principles (7/e): Chapter 10 - William Stallings
Chapter 10 - Multiprocessor and real-time scheduling. This chapter continues our survey of process and thread scheduling. We begin with an examination of issues raised by the availability of more than one processor. A number of design issues are explored.
6/2/2019 9:40:38 PM +00:00
Lecture Operating systems: Internalsand design principles (7/e): Chapter 9 - William Stallings
Chapter 9 - Uniprocessor scheduling. This chapter begins with an examination of the three types of processor scheduling, showing how they are related. We see that long-term scheduling and medium-term scheduling are driven primarily by performance concerns related to the degree of multiprogramming.
6/2/2019 9:40:24 PM +00:00
Lecture Operating systems: Internalsand design principles (7/e): Chapter 8 - William Stallings
Chapter 8 - Virtual memory. After studying this chapter, you should be able to: Define virtual memory, describe the hardware and control structures that support virtual memory, describe the various OS mechanisms used to implement virtual memory.
6/2/2019 9:40:02 PM +00:00
Lecture Operating systems: Internalsand design principles (7/e): Chapter 7 - William Stallings
Chapter 7 - Memory management. After studying this chapter, you should be able to: Discuss the principal requirements for memory management, understand the reason for memory partitioning and explain the various techniques that are used, understand and explain the concept of paging,...
6/2/2019 9:39:47 PM +00:00
Lecture Operating systems: Internalsand design principles (7/e): Chapter 6 - William Stallings
Chapter 6 - Concurrency: Deadlock and starvation. This chapter examines two problems that plague all efforts to support concurrent processing: deadlock and starvation. We begin with a discussion of the underlying principles of deadlock and the related problem of starvation. Then we examine the three common approaches to dealing with deadlock: prevention, detection, and avoidance.
6/2/2019 9:39:28 PM +00:00
Lecture Operating systems: Internalsand design principles (7/e): Chapter 5 - William Stallings
Chapter 5 - Concurrency: Mutual exclusion and synchronization. This chapter begins with an introduction to the concept of concurrency and the implications of the execution of multiple concurrent processes. We find that the basic requirement for support of concurrent processes is the ability to enforce mutual exclusion; that is, the ability to exclude all other processes from a course of action while one process is granted that ability.
6/2/2019 9:39:01 PM +00:00
Lecture Operating systems: Internalsand design principles (7/e): Chapter 4 - William Stallings
Chapter 4 - Threads. This chapter examines some more advanced concepts related to process management, which are found in a number of contemporary operating systems. We show that the concept of process is more complex and subtle than presented so far and in fact embodies two separate and potentially independent concepts.
6/2/2019 9:38:46 PM +00:00
Lecture Operating systems: Internalsand design principles (7/e): Chapter 3 - William Stallings
Chapter 3 - Process description and control. After studying this chapter, you should be able to: Define the term process and explain the relationship between processes and process control blocks, explain the concept of a process state and discuss the state transitions the processes undergo, list and describe the purpose of the data structures and data structure elements used by an OS to manage processes.
6/2/2019 9:38:22 PM +00:00
Lecture Operating systems: Internalsand design principles (7/e): Chapter 2 - William Stallings
After studying this chapter, you should be able to: Summarize, at a top level, the key functions of an operating system (OS); discuss the evolution of operating systems for early simple batch systems to modern complex systems; discuss the key design areas that have been instrumental in the development of modern operating systems;...
6/2/2019 9:37:57 PM +00:00
Lecture Operating systems: Internalsand design principles (7/e): Chapter 1 - William Stallings
Chapter 1 - Computer system overview. This chapter provides an overview of computer system hardware. In most areas, the survey is brief, as it is assumed that the reader is familiar with this subject. However, several areas are covered in some detail because of their importance to topics covered later in the book.
6/2/2019 9:37:41 PM +00:00
Deployment of openstack using devops
The software platform consists of interrelated components that control hardware pools of processing, storage, and networking resources throughout a data center. Users either manage it through a web-based dashboard. But the implementation of openstack is very complex. So, we can use configuration management tools that is also known as DevOps.
4/25/2019 7:42:16 AM +00:00
A survey on “security of smart card payment”
To ensure communication between the banking server and the client, they will use security algorithms such as the Brute Force algorithm, the MD5 Hashing algorithm and the Base64 algorithm. There proposed technique will ensure the flow of payment of the card.
4/25/2019 7:42:06 AM +00:00
Satellite image enhancement and restoration – A review
This review paper presents various techniques applied in satellite image enhancement and restoration. Our review findings shows that there exists lot of scope for performing satellite image enhancement and restoration using amalgamating soft computing techniques and conventional image processing.
4/25/2019 7:40:16 AM +00:00
Software testiang techniques for faults/ errors detection
Software testing is one of the important phases in Software Development Life Cycle. It provides several means/methods to reduce errors, cut maintenance and overall software costs. It is a process which focuses on evaluating an attribute or capability of a program and ensures that it meets the required result.
4/25/2019 7:38:55 AM +00:00