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content/notes/01-bits-and-bytes.md
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# A Word of memory
- The word is the number of bits the cpu uses internally, varies between manufacturers and CPUs.
- Now its usually 64 bits
-
- [amount of bits for different devices](https://i.imgur.com/nHrz1zX.png)
# Characters
- A written symbol.
- In english are represented as a single byte, (other languages use 2 bytes or more)
- e.g., [different types of characters](https://i.imgur.com/DBLVhw8.png)
- characters are joined together to make human readable numbers and words
- `char ch`
- ch is a variable name