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“Legends of UNIX: History and Memories” is a new work of bwk ( Brian W. Kernighan ) in 2019. It recalls the ups and downs of UNIX for more than half a century. It is a fascinating book. Through the detailed description and review of the history and development of the UNIX operating system, I have a deeper understanding of this operating system. After reading this book, I not only have a clearer understanding of the technical details of UNIX, but also have a deeper understanding of the influence and value of UNIX.
The book first reviews the birth and development process of UNIX. From the research project of Bell Labs to becoming one of the most important operating systems in the world, UNIX has experienced a long and tortuous development process. Through detailed narration and rich historical data, the author combined the development of UNIX with the technical environment and social background at that time, and deeply analyzed the reasons for the success of UNIX and the impact on computer science.
In the book, the author also introduces the design principles and philosophy of UNIX, such as small is beautiful , everything is a file, etc. These principles not only reflect the simplicity and flexibility of UNIX, but also affect the later operating system design. Through the interpretation of UNIX design principles, I have a deeper understanding of UNIX design concepts, and have new thinking on software design and development.
In the picture above ( source ) is dmr ( Dennis MacAlistair Ritchie ) standing, Ken ( Ken Thompson ) sitting and typing, and several PDP-11s . In addition, this book also introduced the core components and functions of UNIX in detail, such as file system, process management, network communication and so on. Through the analysis of these functions, you will have a deeper understanding of the internal mechanism of UNIX and a more comprehensive understanding of the working principle of the operating system. At the same time, the book also introduces various derivative versions of UNIX and related technologies, such as Linux , BSD (the version maintained by the University of California, Berkeley), etc. These derivative versions not only enrich the functions and application fields of UNIX, but also promote the development of open source software. development of.
In addition to the introduction to UNIX technology in the book, it also involves the development and culture of the UNIX community. The UNIX community has attracted many developers and users with its open and free spirit, forming a unique cultural atmosphere. Through the description and analysis of the UNIX community, I have a deeper understanding of the operation mode and values of the UNIX community. With its open development model and shared culture, the UNIX community promotes the exchange of knowledge and experience, and promotes the continuous advancement of technology. In the UNIX community, people communicate and cooperate through mailing lists, forums and meetings to solve problems and improve software together, forming a win-win atmosphere of cooperation.
In addition, the author also introduced the application and development of UNIX in the commercial field. UNIX has been widely used not only in academia and scientific research, but also in business. Through the introduction to the history and cases of UNIX commercialization, the advantages and challenges of UNIX in the business environment have been gained a deeper understanding. The openness and flexibility of UNIX make it the first choice for enterprise IT systems, and the rise of UNIX commercial companies also promotes the development and promotion of UNIX.
Pictured above is Linus Torvalds ‘ Linux announcement in August 1991 ( image source ). After reading “UNIX Legend: History and Memory”, I have a deeper understanding of the importance and influence of UNIX. UNIX is not only an operating system, but also an embodiment of ideas and concepts . The design principles and open development model of UNIX have influenced the entire field of computer science and promoted the development of software engineering. The success of UNIX lies not only in its technical strength, but also in the spirit of openness and cooperation behind it.
Then, this book also made me feel the enthusiasm and vitality of the UNIX community through the review of UNIX history and the narration of personal experiences. I am deeply inspired by members of the UNIX community’s love and pursuit of technology, as well as their insistence on freedom and openness. As a person engaged in software development, I deeply feel the values and spirit conveyed by UNIX, which will have a positive impact on my work and career development.
After reading “Legends of UNIX: History and Memories”, I was deeply moved and inspired. This book not only made me understand the history and technology of UNIX, but also made me feel the spirit and value of UNIX. The openness, flexibility and cooperative spirit of UNIX are all places that I need to learn and learn from in my work and life.
The UNIX design philosophy “small is beautiful” made me understand that when solving problems, simple solutions are often the best. In software development, we should try to avoid complexity and pursue simplicity and efficiency. At the same time, UNIX’s “everything is a file” principle also made me understand the importance of abstraction and unity. By treating all resources as files, UNIX simplifies operational and administrative complexity, improving efficiency and availability.
The picture above is a history of the evolution of UNIX and UNIX-like systems from 1969 ( image source ). The open source code and development model of UNIX also made me realize the value of openness and sharing. In today’s Internet age, openness and sharing are important forces driving the progress of technology and knowledge. We should actively participate in the open source community, share our knowledge and experience, and jointly promote the development of technology.
I was also touched by the energy and enthusiasm of the UNIX community. In the UNIX community, people share knowledge selflessly, help others with enthusiasm, and solve problems together. This spirit is what I need to learn and advocate.
Overall, “The UNIX Legend: History and Memories” is a very worthwhile read. It not only let me understand the history and technology of UNIX, but also let me feel the spirit and value of UNIX.
For me, this book is not only a knowledge journey, but also a spiritual baptism. I believe this book will be inspiring and helpful to anyone interested in computer science and software development ~
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