Question

How many bits of memory does the bool datatype occupy?

(a) 2

(b) 4

(c) 6

(d) 8

This question was posed to me by my college professor while I was bunking the class.

I'd like to ask this question from Datatypes topic in portion Arduino Programming of Arduino

Answer 1

Correct option is (d) 8

To explain: The bool datatype can only take 2 values; TRUE or FALSE. This takes a space of 8 bits or 1 byte. It’s mostly used in digital read or write operations to denote a 0V or 5V signal output or input. It can also be used for decision making.