This notebook PC has an HDD storage medium, which is the most frequently found storage medium on notebook PCs of this spec and age. HDD is a traditional storage drive which stores the information on magnetic disks. HDD drives are slower than other forms of storage such as solid state drives (SSD) and flash drives.
There are a number of alternative laptops that have an HDD storage media currently available that you might also want to look at including because of it's better review score, the Lenovo Z500.
If you want a laptop with a better storage medium then you might want to consider the LG 13Z940 ($743.96) (SSD and higher rated), or the DELL Latitude 12 E7250 (SSD and higher rated).