Technology Landscapes are the illustrations of my vision and understanding of computer engineering and technologies. They give you the big pictures of this field.
Please check out my Tech Landscape YouTube series.

Big O notations and interview questions
Big O notation cheat sheet provides the extended Big O notations for top interview questions. What is Big O notations? Big O notations describe the time or space required for the execution in software program. The execution can be an operation in data structures, such ...
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Software Engineering – Student Guide
What is software engineering? Software engineering is the study of engineering in the software design, development and applications. What courses are in software engineering major? 1 Mathematics2 Systems3 Programming4 Networks5 Data6 Applications7 Artificial intelligence You may just decide to major in computer science or software ...
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How Zoom works
What is Zoom? Zoom provides video conferencing for collaborations, educations and misc. communications. It integrates with other services such as voice, messaging into one easy-to-use, reliable and high quality platform. What is Zoom architecture? Zoom architecture includes client-side app and server-side infrastructure. Zoom client is ...
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Data structures and Java collections
What are data structures? Data structures refer to the way how data are organized and manipulated. When dealing with data structures, we not only focus on one element of data, but rather different sets of data and how they can relate to one another in ...
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What Are Algorithms & Why Are They Important
What Is An Algorithm? An algorithm is a set of step-by-step procedures, or a set of rules to follow, for completing a specific task or solving a particular problem. Algorithms are all around us. The recipe for baking a cake, the method we use to ...
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How is Coding Used in Data Science & Analytics
What is Data Science? In recent years the phrase “data science” has become a buzzword in the tech industry. The demand for data scientists has surged since the late 1990s, presenting new job opportunities and research areas for computer scientists. Before we delve into the ...
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