The storage speed of this computer is HDD, which is typical of many PCs of this age and type. A Hard Disk Drive (HDD) is the traditional storage method for computers. A HDD stores the information on magnetic disks. HDD drives are cheap, but they are slower than Flash and SSD bases storage systems.
We think you might also be interested in some of the alternative HDD computers currently available including because of it's better review score, the OptiPlex 7020 (£214.80), or the OptiPlex 3020 (£202.80) both from DELL or the Asus VM42 (£160.00).
If the storage speed of this computer is too slow for you then you might want to consider the CN60 (£139.38) (SSD), or the VM42 (£199.98) (SSD) both from Asus or the Acer Revo One RL85 (£175.11) (SSD) which is also higher rated.