No, Apple invented that too – the Newton. Remember?
iPod was just a faster, polished, Newton marketed as the coolest thing ever. It didn’t matter that it was heavily over-enginneered and cost 2-4x as much as other music players. Apple saw a niche product and realised it was mass-market if made prettier… and if it had a $billion marketing budget in the booming late 2000s. I don’t know if they always planned the iPod or just released a cut-down iPhone for the gap in the market.
It didn’t matter the hard disk kept failing either because Apple bribed journalists to keep this out of the news until they released the flash version.