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      Jiajun&#39;s Blog

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----------- ABOUT ME -----------
I am Jason Yu / Jiajun Yu / 余嘉俊
Student from The University of Adelaide
Bachelor of Computer Science 
Software Engineer at ASTC
Academic Tutor at JR Academy
----------- INTERESTS -----------
Computer Systems / Architecture
Algorithms and Data Structures
Teaching / Running / Blogging
------------- SKILLS -------------
Java SE | C&#43;&#43; | C | C# | Python 
HTML | CSS | JavaScript | Vue.js | React.js 
Node.js | AJAX | MySQL
Git | Vim | Linux (Ubuntu)
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----------- ABOUT ME -----------
I am Jason Yu / Jiajun Yu / 余嘉俊
Student from The University of Adelaide
Bachelor of Computer Science 
Software Engineer at ASTC
Academic Tutor at JR Academy
----------- INTERESTS -----------
Computer Systems / Architecture
Algorithms and Data Structures
Teaching / Running / Blogging
------------- SKILLS -------------
Java SE | C&#43;&#43; | C | C# | Python 
HTML | CSS | JavaScript | Vue.js | React.js 
Node.js | AJAX | MySQL
Git | Vim | Linux (Ubuntu)
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----------- ABOUT ME -----------
I am Jason Yu / Jiajun Yu / 余嘉俊
Student from The University of Adelaide
Bachelor of Computer Science 
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Academic Tutor at JR Academy
----------- INTERESTS -----------
Computer Systems / Architecture
Algorithms and Data Structures
Teaching / Running / Blogging
------------- SKILLS -------------
Java SE | C&#43;&#43; | C | C# | Python 
HTML | CSS | JavaScript | Vue.js | React.js 
Node.js | AJAX | MySQL
Git | Vim | Linux (Ubuntu)
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        <p><br />----------- ABOUT ME -----------<br />I am Jason Yu / Jiajun Yu / 余嘉俊<br />Student from The University of Adelaide<br />Bachelor of Computer Science <br />Software Engineer at ASTC<br />Academic Tutor at JR Academy<br />----------- INTERESTS -----------<br />Computer Systems / Architecture<br />Algorithms and Data Structures<br />Teaching / Running / Blogging<br />------------- SKILLS -------------<br />Java SE | C++ | C | C# | Python <br />HTML | CSS | JavaScript | Vue.js | React.js <br />Node.js | AJAX | MySQL<br />Git | Vim | Linux (Ubuntu)<br /></p>
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        <h3><a href="/post/computer-architecture/">COMPUTER ARCHITECTURE STUDY</a></h3>
        
          <p>This is my revision notes for Computer Architecture. In this post, I will go through some basic knowledge of computer architecture (definitions, theories, calculations), arithmetic operations for computers, pipelined processor design and memory hierarchy. This post will provide a low-level view of computer architecture and design, and help understand how a computer actually runs.</p>

        
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              13/11/2023


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          <span><a class="tag" href="/tags/computer-architecture/">Computer Architecture</a><a class="tag" href="/tags/notes/">Notes</a></span>


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        <h3><a href="/post/arm-architecture/">ARM ARCHITECTURE STUDY</a></h3>
        
          <p>Welcome to this post, where the exploration of ARM architecture is at the forefront of our discussions. As a professional currently engaged in simulating ARM processors, I&rsquo;m here to unravel the complexities and innovations of this pivotal technology. ARM&rsquo;s efficient, low-power consumption design is not just revolutionizing mobile computing; it&rsquo;s reshaping the way we think about processing power in an array of devices. Join me on this intellectual odyssey as we delve into the nuances of a system that is the bedrock of modern computing efficiency.</p>

        
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              13/11/2023


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          <span><a class="tag" href="/tags/computer-architecture/">Computer Architecture</a><a class="tag" href="/tags/notes/">Notes</a></span>


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        <h3><a href="/post/software-engineering/">SOFTWARE ENGINEERING</a></h3>
        
          <p>This is my notes for software engineering. In this post, I will cover some basic principles about software engineering.</p>

        
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              24/7/2023


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          <span><a class="tag" href="/tags/software-engineering/">Software Engineering</a><a class="tag" href="/tags/notes/">Notes</a></span>


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        <h3><a href="/post/operating-systems/">OPERATING SYSTEMS</a></h3>
        
          <p><p>This is my notes for operating systems. In this post, I will cover the following contents:</p>
<ul>
<li>OS purposes: resource management and the extended virtual computer; historical development.</li>
<li>Processes: critical sections and mutual exclusion, semaphores, monitors, classical problems, deadlock; process scheduling.</li>
<li>Input and Output: hardware and software control.</li>
<li>Memory management: multi-programming; swapping; virtual memory, paging and symbolic segmentation.</li>
<li>File System: operations, implementation, performance.</li>
<li>Operating System Security and Protection mechanisms: protection domains, access lists, capability systems, principle of minimum privilege, security threats and attacks, encryption, and authentication.</li>
</ul></p>

        
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              23/7/2023


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          <span><a class="tag" href="/tags/operating-systems/">Operating Systems</a><a class="tag" href="/tags/notes/">Notes</a></span>


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        <h3><a href="/post/distributed-systems/">DISTRIBUTED SYSTEMS</a></h3>
        
          <p><p>This is my course notes for Distributed Systems. In this post, I will cover:</p>
<ul>
<li>The challenges faced in constructing client/server software: partial system failures, multiple address spaces, absence of a single clock, latency of communication, heterogeneity, absence of a trusted operating system, system management, binding and naming.</li>
<li>Techniques for meeting these challenges: RPC and middleware, naming and directory services, distributed transaction processing, &rsquo;thin&rsquo; clients, data replication, cryptographic security, mobile code.</li>
<li>Introduction to Java RMI.</li>
</ul></p>

        
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              23/7/2023


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          <span><a class="tag" href="/tags/notes/">Notes</a></span>


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        <h3><a href="/post/c&#43;&#43;_study/">C&#43;&#43; STUDY NOTE</a></h3>
        
          <p>During the summer of my freshman year, I spent quite a lot of time self-studying C++ basic knowledge such as operator overloading, template, file operations. Honestly, it is sufficient for me to pass my courses in later 2 years. However, when I am coding for real industrial project, I realized the knowledge gap. That&rsquo;s why I make this post to keep track of my further study about C++. In this post, I will go through some deeper concepts in C++ such as compiling, linking, some other keywords, smart pointers, C++ libraries, multi threading, design patters, lambda expressions&hellip;</p>

        
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              13/7/2023


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          <span><a class="tag" href="/tags/c&#43;&#43;/">C&#43;&#43;</a><a class="tag" href="/tags/notes/">Notes</a></span>


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        <h3><a href="/post/git/">GIT NOTE</a></h3>
        
          <p>Over the past 2 years, I basically had no idea about how to use git in real development since I only know a few commands such as git add, git commit and git push. Until I became a software developer, I realized the importance of git and agile development. That is why I want to make a blog post about it. In this blog, I summarized the workflow of using git and put some other knowledge like branching and resolving conflicts.</p>

        
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              10/7/2023


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          <span><a class="tag" href="/tags/notes/">Notes</a></span>


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        <h3><a href="/post/linuxproject/">LINUX PROJECT</a></h3>
        
          <p>In this post, I will put some C++, linux, computer networking and computer architecture concepts and theories. In addition, I will also do a Linux high-concurrency web server project in the end to consolidate these knowledge.</p>

        
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              5/7/2023


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          <span><a class="tag" href="/tags/c&#43;&#43;/">C&#43;&#43;</a><a class="tag" href="/tags/linux/">Linux</a><a class="tag" href="/tags/computer-architecture/">Computer Architecture</a><a class="tag" href="/tags/computer-networking/">Computer Networking</a></span>


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        <h3><a href="/post/parallel-and-distributed-computing/">PARALLEL AND DISTRIBUTED COMPUTING</a></h3>
        
          <p>This is my revision notes for Parallel And Distributed Computing. In this post, it will cover fundamental concepts and trade-offs behind parallel and distributed applications, designs and implementations for parallel and distributed applications, as well as performance analysis.</p>

        
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              21/6/2023


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          <span><a class="tag" href="/tags/notes/">Notes</a></span>


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        <h3><a href="/post/computer-network-and-application/">COMPUTER NETWORK AND APPLICATION</a></h3>
        
          <p>This is my revision notes for Computer Network and Application. I will go through a five-level protocol model: Application Layer, Transport Layer, Network Layer, Link Layer, and Physical Layer. This post includes the summary of computer network knowledge as well as network security.</p>

        
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              18/6/2023


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          <span><a class="tag" href="/tags/notes/">Notes</a></span>


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