The storage speed of this personal computer is HDD, which is the most commonly found storage medium on computers of this spec and age. 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.
If the storage speed of this Acer personal computer is not fast enough for you then you might also want to look at the Shuttle DSA2LS (£148.75) (Flash).