Complete Guide to Variable Data Types | Definition, Types with Examples, and Data Representation in Programming | Funifytools

1. Data types label what data means so computers know whether to treat it as numbers, text, logic, or collections.

2. Integers and floats represent countable vs continuous quantities and use different internal representations, which affects precision.

3. Characters and strings handle human-readable text; booleans drive control flow with true or false.

4. Arrays or lists store ordered values, dictionaries or maps store key-value pairs; Null or None means no value and is not the same as zero.

5. Using the wrong type causes bugs or coercion surprises, so mastering types builds portable understanding across languages.

You can view the original blog post in Korean and English at the links below:

[ View in Korean ] | [ View in English ]

We need to tell apart iced Americano and hot cafe latte

To a computer, we must give a clue
about whether "100" is a number,
a piece of text, a foreign word, or an alien symbol