Final answer:
The Dell desktop computer might contain a traditional (magnetic) hard drive, while the Apple iPad, Apple iPhone 6, and Samsung Galaxy s6 use solid-state drives.
Step-by-step explanation:
The Dell desktop computer is the option that might contain a traditional (magnetic) hard drive. Traditional hard drives use magnetic disks to store data, while solid-state drives (SSDs) do not use magnetic disks. The Apple iPad, Apple iPhone 6, and Samsung Galaxy s6 use solid-state drives, which are flash memory-based storage devices.