The Fujitsu LifeBook E544 has an SSD storage medium which is better than most laptops of a similar age and spec to it. Most similar spec notebook PCs that have been available for a comparable time to 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.
An SSD storage medium is in fact the best storage medium across all notebook PCs that have been around for around the same time as the LifeBook E544.
The worst storage medium amongst similar types of laptop is HDD.
Portable PCs with a better storage medium that might be worth looking at include the DELL XPS 13 (£1,199.99) (SSD).