We as kids started learning English alphabets with "A" for Apple.
A red apple. Even we have drawn and coloured the red apple so many times.
It is a fruit. Then in school, I learnt this proverb, 'An apple a day keeps the doctor away.'
It is healthy to eat fruits like apple everyday. Later I came to know we also have green apples. But I have never seen one. So I don't know how it tastes. Then I got to know one Idiom. ' He is apple of my eye.' meaning lovingly important person.

But I don't know how a fruit that is good for health became a brand for expensive Electronics items like laptops, phones and whatnot.