E-books and Traditional Books

随着信息技术的发展,电子书因其便捷性、经济性和时尚性逐渐流行起来。一些观点认为电子书将因这些优势最终取代传统纸质书籍。本文探讨了电子书与传统书籍之间的差异,并预测了未来阅读方式的发展趋势。

October 2, 2010

 

 

In recent decades, (1)with the rapid development of advanced information technology, E-books have found/made their way into most people's daily life and have gained increasing popularity among common people. (2)information technology has rapidly developed. As a result, E-books have found their way into our everday/daily life and have gained increasing popularity among common people.
It's no wonder that some people hold the idea that E-books will replace traditional books sooner or later, because E-books have various advantages over traditional books.

 

(1) To begin with/To start with, all the E-books can be downloaded from the Internet directly, most of which are free of charge, while the traditional books in bookstores are much more expensive.
(2) What's more, E-books can be stored more easily in our computers and are more convenient for people to keep.
(3) Last but not least, reading E-books has become a fashion in our life, which is particularly appealing to us young people.

 

Generally speaking, as far as I am concerned, traditional books will still be the leading means of reading books in a few years. However, with the further development of information technology and with the popularity of computer and Internet, E-books will surely take the place of traditional books in the near future.

 

 

 

Operating Systems Courses in operating systems cover the design of the components of an operating system—scheduler, memory manager, file system, etc. Only a small fraction of programmers ever write this kind of code, though. On the other hand, they can access many features of the OS using system calls such as fork, wait, exec, etc. This level of programming is not generally covered in any course. In Chapter 8, we describe process management, and how programmers can make use of the process control features of Unix and Linux. Other Topics We cover a wide range of systems topics, all from a programmer's perspective. Besides those mentioned above, these include machine-level programming, optimizing compilers, processor architecture, linking, performance measurement, virtual memory, I/O, network programming and concurrency. In viewing what to cover about a subject and how to present it, we have used the filter “How could a sophisticated application programmer make use of this material?” Key Points The material in this book has direct value for programmers. Students find that it explains many of the mysterious problems they've already encountered, that it helps them write and debug code more efficiently, and that their programs are more reliable and efficient. Even if this is the only systems course they ever take, they will have achieved a higher level of competence than many entry-level programmers. The material in this book is unique. Much of it is not presented in any other book or taught in previous courses. Instead, a traditional coverage of systems requires programmers to figure out on their own how the characteristics of the systems they study in builder-centric courses can be exploited to improve their programs. Programmers must struggle through confusing Unix man pages or read advanced systems programming books just to use the simple process control functions provided by Unix. The book provides a solid foundation for builder-centric courses. We believe that more advanced systems courses should present systems from a builder's perspective. Students will be much better oriented to the needs and constraints of these systems by first studying them from a programmer's perspective. At Carnegie Mellon, our Introduction to Computer Systems course has become a prequisite for courses in both CS and ECE covering: operating systems, networking, compilers, computer graphics, computer architecture, and embedded system design. Copyright © 2011, 2015 Randal E. Bryant and David R. O'Hallaron翻译以上英文为中文
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