Secondary+Storage

Secondary Storage by Colin Lescroart A hard disk drive (HDD) is the primary non-volatile storage hardware. Data is kept in the hard drive by digitally encoding data onto a medium such as iron (III) oxide or nowadays a cobalt based alloy. The data is kept magnetically on the material by detecting the magnetism of the material. The highest capacity hard drive as of 2009 is a 2TB hard drive. Typical hard drives might be stored between 120GB to 2TB. Hard drives can have their data destroyed by other magnets getting in close contact with the disk or if banged around or dropped it could lose some data in the hard drive. Another form of data storage is through solid-state memory which emulates a hard drive interface. A solid-state drive (SSD) is commonly used as a flash drive which is a common portable USB device that can store from 128MB to 16GB. But they also have larger drives for laptops or computers which has a capacity of 256GB. SSD has no moving parts for if dropped or banged around it won’t lose data like a HDD will and cannot be affected by magnetism.