The HP 200 has an SSD storage medium which is faster than the HDD storage medium found on most similar spec PCs that have been available for around the same time as it. 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.
An SSD storage medium is in fact the best storage speed across all PCs of a similar spec and age to the 200.
An HDD storage medium is the worst storage speed across similar types of computer.