The hard disk is the pos terminal storage software program and data files. Like the pos cash register used by our restaurant and supermarket, how much hard disk is needed?
Many low-priced pos cash registers on the market use 80G, 160G, 500G mechanical hard disks. For the pos cash register, you don't need much capacity. Just run a fast solid-state hard drive. Generally, only 32G is enough. If it is Installing win7 64-bit requires a 64G hard drive.