‘External memory’ essentially means any type of storage device that is used externally; people usually use this word for portable storage. External memory or portable storage can range from a portable hard drive, flash drive or even a memory card that is often used in cameras and mobile phones. Using external memory is quite simple as they come with modern operating systems and built-in drivers. This means that users simply need to plug in the external memory device they want to use and it will automatically get installed in the correct manner.
External memory is very useful for all those who want to make data portable and stay away from carrying their computer around. External memory devices of varying capacity are available ranging from 56 KB to several Terabyte (TB) and more. Moreover, these portable devices can be connected directly to your computer via a USB port.
Portable Hard Drives
A portable hard drive can be used for storing large music files, digital images, personal files and large documents that covered a lot of space on your computer’s hard drive. Because they are portable, you can save any information onto the drive and carry the hard drive with you wherever you go. You can even use it to transfer information or files from one computer to the other.
Two different types of external hard drives are available these days. These include a serial port connection external hard drive and a USB port connection external drive. However, newer models are generally connected by universal serial port. With external hard drives, you get the option of either purchasing the entire drive assembly or just buying a portable hard drive enclosure. With external hard drive enclosure, you can use the hard disk you already have. Whether you choose to buy the entire drive assembly or just the enclosure, both of them are very easy to use and enable data portability.
Using an external hard drive is very simple as it is a simple plug and play device. Modern external drives that are easily available these days are compatible with portable desktop, net books and laptops. The interface provided features a high-speed connectivity. Using an external hard disk is a preferred option for many as it lessens the chances of data production and attack of virus on the important files.
The only disadvantage that comes along with external hard drive is its price. Even if you compare external and internal hard drive, there is huge price difference. The additional cost is because of the protective housing and durability this storage device offers. Moreover, modern external devices are equipped with data encryption technology. Some of them even come with fingerprint technology so that there are no chances of data misuse.
Flash drive is one of the most preferred external memory device, essentially because of its small size. Portable flash drives can store amazing amount of data using non-volatile memory. Flash Drives are also called jump drives, pen drives, thumb drives, memory sticks and key drive. USB flash drives have a number of advantages.
The first advantage is undoubtedly its small size. The transfer speed that USB flash drive offers is about 1.5 to 12 MB/s. Another advantage of using USB flash drive is that they are reusable and you can easily carry your important data in your pocket. USB flash drives are also quite durable and consume very less power. Moreover, flash drives are growing in terms of capacity; you can get as much as 32 GB storage space in a small flash drive.
Memory cards are also called SD Cards and they can be inserted into any portable device such as MP3 player, digital camera, laptop or cell phone. Memory card is a removable storage device that can be used for storing data ranging from video and audio files to images and applications. Memory cards are very simple to use and you don’t need to install it before using it on any system. Simply insert the memory card without changing or deleting any data present on it. Memory or SD card can be used to transfer data from one computer the other or to preserve some important information.
One major benefit that a memory cards offers is its ability to save different types of files that occupy unnecessary space on your internal hard drive. Moreover, there is no compromise in the quality of images and videos you store on a SD card.
These days memory cards are available in capacities ranging from to 2GB to 2TB. This means you can save as much as 670 photographs, each of which is a 5 megapixel JPEG image of size 5 MB on your memory card.
Why Should You Use An External Memory Device?
There are several advantages that advocate the use of external memory devices. The main advantage is undoubtedly the portability, but most of the people use an external memory device in order to save important data and reduce vulnerability. Moreover, using an external memory device is extremely easy and you do not need additional devices to use them on your computer. As soon as you connect an external device to the USB port, the device itself gets installed and become ready to use. Copying data from your computer and pasting it on external memory devices is also quite easy. Same goes for copying data from external memory to the internal hard disk. Although you do not need any adapter for external hard drive and USB flash drive, for a memory card or SD card you may require a special adapter that are easily available online on websites such as Amazon and buy.com.
According to some people, external devices are costly but in reality if you compare it to a separate CD and DVD writer installation, you will find that external memory devices are much cheaper. With the help of proper cables, an external memory device can be easily connected to almost any computer. On top of all, an external memory device reduces burden from your computer. Now whether it is some official files or some movies that you downloaded for your collection, you can easily store it on your external hard drive and free a lot of space from your computer’s internal drive, thereby aiding in speedy working of your computer.