Final answer:
Newer SSDs use NVM Express (NVMe) as their interface specification instead of AHCI, enhancing performance by leveraging the speed of SSDs through the PCIe interface.
Step-by-step explanation:
SSDs, or solid state drives, differ from traditional hard drives in their interface specifications. While older hard drives typically use Advanced Host Controller Interface (AHCI), modern SSDs often utilize the NVM Express (NVMe) protocol, which was developed to capitalize on the speed of SSDs via the PCIe interface. This protocol reduces latency and increases input/output operations per second (IOPS) compared to AHCI, making it better suited for the nature of SSD technology.
Traditional hard drives magnetically encode digital information onto spinning disks, using a technique known as giant magnetoresistance to read and write data. This phenomenon involves a significant change in electrical resistance in the presence of a magnetic field and represents one of the first triumphs of nanotechnology in data storage.
It should be noted that the primary interface specification for newer SSDs is NVMe, which stands in contrast to the AHCI used by conventional hard disk drives. NVMe's development specifically addresses the unique capabilities of SSDs, offering significant performance improvements.