Why is the internal memory of smartphones always in exponential powers of 2 like 16GB 32GB

Why is the internal memory of smartphones always in exponential powers of 2 like 16GB, 32GB, 64GB, and 128GB?

Try counting up in multiples of 10. It's very easy: 10, 20, 30, 40, 50, 60, ...

Now try counting up in multiples of some other number, like, say, 7: 7, 14, 21, 28, 35, 42, ...

You'll notice that, in base 10, it's a lot easier to count up in multiples of 10 (or 100 or 1000) because you can just count up in increments of one and append one or more zeros to the end of the numbers. Counting up in multiples of 7 is a lot harder, because there's no such easy rule, and you'll end up having to do some non-trivial arithmetic (especially after you get past the small multiples of 7 you may have memorized while learning the multiplication table in preliminary school).

It works the same way for computers, except that all modern computers use base 2 instead of base 10 internally (because binary digits are easy to represent electronically; you just have two states: 1/0, on/off, high/low). Thus, for computers, counting in steps of 2 (or 4 or 8 or 16, etc.) is very easy, whereas counting in steps that are not powers of 2 requires more complex arithmetic. ... https://www.youtube.com/watch?v=k71epKMJQik