Units of Measurement for Information
Learn the units of information: bit, byte, kilo vs kibi, GB vs GiB. Understand the old and new systems so nobody fools you about storage or speed.
Articles
Bit
The bit, the basic unit of digital information. It represents two states: the binary system. Something so simple, yet important and full of potential.
Hamming Distance, Weight, Space and Spheres Explained
Learn Hamming distance, Hamming weight, Hamming space and spheres, plus how error-correcting codes detect and fix errors, with Hamming(7,4) as the example.
Hamming Code: Error Detection and Correction
Hamming code to detect and correct errors. Step-by-step examples for fixing errors using redundancy bits and the syndrome matrix. Learn how it works.
Hash Tables (or Hash Maps): How They Work
Hash Table explained simply. What is a Hash Table and how does it work without writing code? A key type of "data structure" every developer should know.
Check Digit – Error Detection
The check digit covers several hash codes: the parity bit, the digit from the Luhn algorithm, the letter of national ID numbers, and more.
Hash Code
How does a hash code work? Hash tables and uses like digest, fingerprint, checksum, redundancy, parity bits, CRC and md5sum, with practical examples.
Client-Server: The Client Request
How the Internet works, made easy. Client-Server architecture, the client request, the parts of a URL, and HTTP Request headers explained with examples.
Annotations in Java
Java annotations are simple notes that can change how your program works. Learn to use and create them, with Reflection and Spring dependency injection.
Reflection in Java
Reflection in Java lets you pick a class you wrote earlier and inspect or modify it while the program runs. It's easy to learn with practical examples.
Android Architecture – ART vs Dalvik
Android architecture explained in a technical yet easy way. ART vs Dalvik compared, APK contents, AOT and JIT compilation, and the Odex vs Deodex difference.
Pattern Matching – Regular Expressions
Everything about regular expressions (Regexp) and pattern matching, with Java, PHP and JavaScript examples covering every possibility