This laptop has an HDD storage medium, which is typical of many similar spec laptops that were launched around the same time as it. 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.
It may also be worth also looking at one of the other portable PCs that have an HDD storage media currently available including a cheaper laptop such as the Lenovo G50-70 or you might consider a higher scoring laptop such as the Lenovo G500.
If the storage medium of this portable PC is not good enough for you then you might want to consider the HP ProBook 650 G1 (SSD and higher rated); or the HP Stream 11 Pro (SSD and cheaper).