The Vivo Mini UN42 has a faster storage speed than most similar spec personal computers that were released around the same time as it. This computer has an SSD storage medium, whereas most computers of this age and spec have an HDD storage medium. Solid State Drives (SSD) store information in transistors on a circuit board rather than on optical or magnetic media. This has the advantage of being much faster than a traditional HDD drive.
This computer's storage speed (SSD) is actually the best storage speed amongst all personal computers that were released around the same time as the Vivo Mini UN42.
An HDD storage medium is the worst storage speed across similar types of computer.