Tech Visuals

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.

DS packing

Illustrated data structures introduction

Data structures introduction lists the most common-used data structures. There are arrays, linked lists, stacks, binary trees, hash tables, graphs among others. The definition, illustrations and links to their implementations are included. Table of Content Array Linked list Tree Binary tree Binary search tree matrix ...
Read More
Big O notation cheat sheets

Big O notation – leetcode cheat sheet

Big O notation cheat sheet provides the Big O notations for all data structures and algorithm including sorting, search, recursion, DFS and BFS, and memoization, Dynamic programming etc. The links are provided to download the jpg file of the cheat sheets. At the end, you ...
Read More
Tiktok feature

How TikTok works – Architecture illustrated

TikTok is a video-sharing app that let users create and share short videos. It impresses users with its personalized recommendations just “for you” precisely. It is highly additive and very popular among young people. Behind it, it is powered by artificial intelligence technologies. Table of ...
Read More
algorithms examples

Illustrated algorithm examples by types

Algorithms are set of rules that instruct the computer how to perform a task. The most used types of algorithms are Binary search, sorting, Divide and conquer, Two pointers, Greedy, Recursion, Backtracking and Dynamic programming. The illustrated algorithm examples feature well-known examples in each algorithm ...
Read More
data structures and java apis

Data structures and Java collections

Java collections are Java built-in library provided by JDK. You don't have to implement your own data structures classes and methods. You can directly call the library. Before we list the Java Collections, the original data structures are introduced. There are arrays, linked lists, stacks, ...
Read More
zoom feature

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 ...
Read More
SW overview

What you learn in Computer engineering – courses explained

You may just decide to major in computer science or computer engineering in college, or you want to go to coding bootcamps. Here is an illustrated explanation of computer engineering courses. It helps you to decide what courses to take, and which areas you would ...
Read More
eclipse feature

Eclipse Java settings how-to guide

Eclipse is one of the most popular IDE for java development. Some of the settings are "hidden" and take time for you to find out. Here I list some eclipse java settings that will help you save time. Common eclipse settings are: 1. Open the ...
Read More


Comments are closed