Download What is Unicode.mp4
Unicode is a universal text standard that lets computers represent and work with characters from almost every language in the world—consistently.
Think of it like this 👇
Before Unicode, different systems used different codes for letters. Text would break, show weird symbols, or turn into ❓❓ when moved between computers. Unicode fixed that mess.
What Unicode actually does
Unicode assigns a unique number (code point) to every character.
Examples:
A→ U+0041a→ U+0061अ(Hindi) → U+0905你(Chinese) → U+4F60😀 → U+1F600
No matter the device, OS, or country — these codes mean the same character everywhere 🌍
Why Unicode is important
Without Unicode:
Multilingual websites would be impossible
Emojis wouldn’t work reliably
Hindi, Arabic, Japanese, etc. would clash with English text
Data transfer between systems would break
With Unicode:
One system supports all languages
Text is portable and future-proof
Apps, databases, APIs stay consistent
Unicode vs Encoding (important distinction)
Unicode is the standard, but it needs an encoding to store characters in bytes.
Common encodings:
UTF-8 (most popular, web default)
UTF-16
UTF-32
Example:
Character
AUnicode: U+0041
UTF-8 bytes:
41
👉 UTF-8 + Unicode = modern internet
Where you see Unicode daily
Websites (HTML uses UTF-8)
Programming languages (PHP, Python, Java, JS)
Databases (MySQL utf8mb4)
Mobile apps
Emojis, symbols, math signs, currency 💰
In one line
Unicode is the global language of computers that makes text readable everywhere
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