The EliteBook 840 has an SSD storage medium which is better than most portable PCs of this age and spec. Most medium processor core notebook PCs that have been on the market for around the same time as it have an HDD storage medium. Solid State Drives (SSD) store data in semiconductors on a circuit board rather than using magnetic or optical media. Solid State Drives have no moving parts which makes them very fast and reliable.
This laptop's storage medium (SSD) is in fact the best storage medium amongst all notebook PCs of a similar type and age to the EliteBook 840.
An HDD storage medium is the worst storage medium amongst similar types of laptop.
We compared all the other laptops that have an SSD storage media to this laptop and we think the XPS 13[pl_1304263_price], and the XPS 13[pl_1304263_price] both from DELL or the HP EliteBook 820[plb_2446413_price] which is cheaper is also worth considering.
Laptops with a better storage medium that might also be worth looking at include the DELL XPS 13[plb_2618156_price] (SSD).