The original iPhone used what was basically an off-the-shelf Samsung DVD player’s processor. It was such an underpowered piece of junk, it’s a miracle the iPhone ever worked. But thanks to some heroic effort in software, it was good enough. And it laid the groundwork for one of the most successful product families of all time.
Taken from Apple’s Bitcode Telegraphs Future CPU Plans which highlights the biggest, yet unnoticed, change announced at this year’s WWDC.