External hard drives certainly aren’t new but they are extremely popular. Many households have more than one and companies can have hundreds. It’s the convenience and portability of external USB hard disk drives that makes them so popular.
External hard drives can be single disk systems or multiple disk NAS devices, some running RAID. Most connect to either a computer using a USB connection or a router. This last option is very popular as it allows everyone who can connect to the router to share the data on the external hard drive.
External hard drives also get knocked over or dropped, when this happens, and it happens quite a lot, they break and the data on them is lost. External hard disk recovery is possible but it takes a skilled company to do it. A dropped hard disk will often make a buzzing or a ticking sound (often described as the ‘click of death’ – Wikipedia link here). In both cases symptoms like these indicate that the hard drive has mechanical damage. I’d recommend anyone who has dropped a hard disk and broken to contact an external hard drive recovery company like Data Clinic Ltd (their external hard drive page is here) if they need to data off the disk.
Once a hard disk has been dropped it can’t really be repaired to such an extent that it’ll work without problems again, frequently data from dropped hard drives is transferred across to another external USB hard disk drive that hasn’t been dropped and works perfectly !