When did slots become commonplace? And NVME slots?

NVMe is designed specifically for SSDs with flash technology making it faster than AHCI drivers which was designed for common hard drives with spinning disk

With the proliferation of SSD drives, the SATA storage management protocol has become a limiting factor The NVMe protocol

nvme m2 slot motherboard PC Components · Form Factor: 2280 · Interface: PCI-Express x4, NVMe · Total Capacity: 256GB* · Warranty: Limited 5-year or 300TBW · Sequential Read

nvme slot Aspire E5-576 Laptop MS Windows 10 Home 64-Bit In my laptop there is an option to install NVMe ssd