| With the advancement in the technology, the things | | | | the USB is used for the connection of external hard |
| are becoming smaller and mobile. The external hard | | | | drives to your computer. There is a facility of taking |
| drives are the hard disk drives which are not placed | | | | the backup of your computer data in some of the |
| inside the computer case. The main advantage of the | | | | external hard drives. With all the facilities of mobility, |
| external hard drives is that they allow good amount | | | | better functioning of the external hard drives, they |
| of space in the computer case as well as provides | | | | are more expensive than the internal hard drives of |
| mobility to take it anywhere you go. There is an | | | | the same capacity. |
| option of removing the external hard drives so; it is | | | | The manufacturers have also made an alternative to |
| possible to take the data along with you. | | | | develop a casing of the hard disk drives with which it |
| There are built-in cables in the external hard drives | | | | is easy to convert the internal hard disk drive of |
| which allow setting up an interface with your | | | | 3.5” or 2.5” to external hard drives. |
| computer. In the older versions of the external hard | | | | One of the best models of external hard drive is a |
| drives, the cables used were SATA and SCSI to | | | | Network Access Storage (NAS). This hard drive is |
| connect the connector of hard disk drive of the | | | | directly connected to your network so there is no |
| computer. In the newer versions, the method of | | | | requirement of the host computer in order to access |
| connection has become simple. Here, the FireWire or | | | | the data. |