These two quotes from an interview with Rob Janoff, the designer of the Apple logo, are really fascinating:
We presented two versions of the logo. One with and one without the bite. Just in case he thought the bite was too cute. Fortunately he went with the one that gave it the most personality with the bite. Frankly it was a no brainer and you would miss the mark if you don’t show some kind of an apple. When I presented I showed him several variations. Striped version, solid color version, metallic version. All those with the same shape.
I designed it with a bite for scale, so people get that it was an apple not a cherry. Also it was kind of iconic about taking a bite out of an apple. Something that everyone can experience. It goes across cultures. If anybody ever had an apple he probably bitten into it and that’s what you get. It was after I designed it, that my creative director told me: “Well you know, there is a computer term called byte”. And I was like: “You’re kidding!
via Frank Chimero