Technology Landscape

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 notation cheat sheets

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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Zoom architecture

How Zoom works – Architecture illustrated

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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SW overview

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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data structures and java apis

Data structures and Java collections

  Table of Content Data structures Java Collections 1. Data structures With data structure, we find ways to make data access more efficient. When dealing with data structure, we not only focus on one piece of data, but rather different sets of data and how ...
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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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