
The hard disk is colloquially referred to as the memory of the device. It stores programs and other files. Today there are two main technologies: the classic HDD (Hard Disk Drive) and the modern SSD (Solid State Drive).
The HDD consists of rotating magnetic discs and a read head. With it you get a lot of storage space at a reasonable price. Although it is very sensitive to impacts or incorrect positioning and should therefore be handled with caution, it has the great advantage that seemingly lost data can often be recovered.
The SSD works similar to a USB stick, it consists of so-called flash memories. The lack of mechanical parts makes it much quieter and less sensitive to impacts compared to the HDD. It is also lighter and works much faster, making it ideal for mobile devices and gaming. Of course, the many advantages also have their price, the costs per GB are much more expensive than those of the HDD. All in all, however, it can be said that the installation of an SSD is well worth it if you want to increase the speed and performance of your notebook.
A combination of HDD and SSD is the SSHD. This hybrid hard disk combines the magnetic disk technology of the HDD with the flash memories of the SSD. Thus it has a considerable storage capacity, but runs much faster than the conventional HDD.