The Toshiba S50-B has a better storage medium than most medium processor core notebook PCs that have been on the market for more than two years. This notebook PC has an SSD storage medium, whereas most medium processor core notebook PCs that were released more than two years ago 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.
This portable PC's storage medium (SSD) is in fact the best storage medium across all laptops that have been around for a comparable time to the S50-B.
The worst storage medium across comparable types of portable PC is HDD.
If the storage medium of this laptop is too bad for you then you might want to consider the T420s (£972.00) (SSD), or the X1 Carbon (SSD) both from Lenovo.