Make sure that it has been scanned...
... so that you do not inadvertently introduce viruses to your external hard drive.
To transfer data to an external hard drive, first select an external hard drive which will meet your storage needs. Depending on the type of data, you may want a hard drive with a very large capacity. If you have a lot of images, video, or music files, an external hard drive with lots of room is an excellent idea. If you are planning to transfer data like documents, a smaller capacity external hard drive is sufficient. Some external hard drives are small enough to fit on a key chain, which is useful for travelers who need small files on the go.
External hard drives come with a connecting cable, which is often a Universal Serial Bus (USB) cable. External hard drives are also available with other connections such as Firewire. Make sure that your computer supports the connection used by the external hard drive. USB ports are common on most computer systems and are therefore usually a safe purchase.
To transfer data, begin by plugging the external hard drive into the appropriate port. Most computers will recognize the hard drive as a new device, and will scan it to determine what it is. The computer will assign the portable hard drive a letter. This allows you to transfer data to it exactly like you would move files around on your computer. Transfer the data you want to move, determining whether you want a copy on the external hard drive or whether you want to remove the data from your primary hard drive altogether.
Many USB devices are also hot swappable, which means that they can be plugged in and turned on while the computer is turned on. To remove the device, use the computer's ejection utility. This ensures that the device will not be damaged when you power down and unplug it. When you transfer data, you want to ensure that it will not be lost, so be certain to wait until the computer indicates that it is safe to disconnect the external hard drive.
An external hard drive can be used to transfer data to and from multiple computers. The drive can be plugged into any computer with the appropriate port, which will recognize the drive. The data on the drive can be seen and manipulated at will by the user. This allows multiple users to take advantage of the same external hard drive. In addition, it makes data portable, which can be highly useful.
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