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What are the differences between ASCII and Unicode?
What is ASCII?
ASCII (American Standard Code for Information Interchange) defines 128 characters. The ASCII characters map to the numbers 0–127.
What is Unicode?
Unicode defines 2^21 characters. The Unicode characters map to the numbers 0–2^21. Not all numbers are currently assigned with Unicode character. Some of the numbers are reserved.
Differences between ASCII and Unicode?
| ASCII | Unicode |
|---|---|
| Defines 2^7 characters (Extended has 2^8) | Defines 2^21 characters |
| Subset | Superset |
| Numbers 0–127 of ASCII has the same meaning similar to Unicode | Numbers 0–127 of Unicode has the same meaning similar to ASCII |
Reference:
https://stackoverflow.com/questions/19212306/whats-the-difference-between-ascii-and-unicode
Unicode links:
https://www.compart.com/en/unicode/category