The A5 chip is a system-on-a-chip (SoC) designed by Apple for use in its devices. Introduced in 2011, it features a dual-core CPU that enhances performance and efficiency, allowing for smoother multitasking and faster processing of applications. The A5 chip is built on a 45-nanometer process, which contributes to its energy efficiency. This chip was first used in the iPad 2 and later in the iPhone 4S and Apple TV (3rd generation). It supports advanced graphics capabilities, making it suitable for gaming and high-definition video playback. The A5 chip marked a significant step in Apple's evolution of mobile processors.