"Apple A4" Presentation — First Apple-Designed Chip for iPhone

The Apple A4 was the first system-on-a-chip (SoC) designed by Apple, debuting in the first iPad in 2010 and later used in the iPhone 4 and iPod Touch. Built on the ARM architecture and manufactured by Samsung, the A4 represented Apple's strategic move toward designing its own processors, giving the company greater control over the performance and power efficiency of its mobile devices. This initiative laid the foundation for the entire Apple Silicon family that would eventually extend to Mac computers.