Is it possible to use an external disk with a mobile device?
Yes, but it depends on the type of your storage device and whether your mobile can deliver the required power. Some storage devices like flash drives or SSD use the USB connection as a power source. However, some devices like HDD demand more power than a mobile device can provide and so they require an external power source.
You can use an OTG (on the go) cable to connect your SSD or flash drive, but a special dongle (not just a cable) that allows the connection of another power source might be required for HDD.
What is the price range?
There isn't a specific price range for storage devices. It depends on many factors such as storage size, speed, portability, and compatibility.
So the price can start from a little less than $50 and up to a few hundred dollars. Obviously, the more storage size and the higher reading and writing speeds, the pricier they get.
What are the differences between SSD technology and standard HDD?
The main differences are:
- SSD lacks moving parts so it has lower power consumption, doesn't produce noise, vibration, or heat as much as an HDD would.
- Cost: SSD is more expensive and HDD provides more capacity for your money.
- Speed: SSD is faster in accessing and transferring data, which can reach up to a few thousand MB/s.
- Size: SSD is more compact than HDD which requires more space.
- Reliability: SSD is more shock resistant and is safe from magnetism effects while in HDD data can be erased by magnets and they aren't very shock resistant.
- SSD is prone to unrecoverable errors and HDD is usually easier to restore than SSD.
What are the advantages of an external hard drive over a USB memory stick?
The main advantages are:
- Capacity: SSDs can have more flash memory chips which mean larger capacity.
- Performance: SSDs have better performance because they newer transport protocols, better master control quality, advanced flash particle technology, and they are equipped with cache DRAMs while flash drives aren't.
- Lifespan: Flash drives have less lifespan because the smaller the capacity the more likely the flash chips will be overused and worn out. SSDs also have wear-leveling technology which the flash drives haven't.
- Use: Both of them are used for different tasks based on their capacity and speed.
Is it possible to restore lost data? To what extent?
It depends on how was the data lost, was it a software or a hardware issue, was the data overwritten or not.
Many ways of losing the data mean it is still there and able to be recovered. Though there are also just as many ways it could have been wiped or damaged beyond any possibility of repair.
So you can recover files from old hard drives.
The only condition is - data is not overwritten - if not overwritten then it is very easy to recover.
And the only catch is that the drive should be physically working.
If it is accessible then you can just copy the data to a new location however, if the data is deleted from the older drive and can’t find it, then let the Recovery software handle it.
What are the advantages of an external hard drive over using a Cloud storage service?
- Affordability: External hard drives are affordable and they involve a one-time upfront cost.
- Speed: With the newer transmission protocols that most new backup drives use, data transfer is really fast.
- Portability: You can just put it into your bag and your files are always with you. There's no need to connect to the internet to get your files.
- Security: When you successfully back up your data to a hard drive your data is as secure as possible. Only through physical access to the drive can your data be accessed or tampered with.
How reliable are external drives?
Hard drives are reliable storage media. Yet, are fragile and need the utmost care to handle these drives.
They are prone to failure and could risk losing all your data, even your backups in the event of:
- a glitch in your backup software
- an electrical failure
- a virus
- human error
- fire or flood
But generally, passport-sized hard drives are reliable and easy to handle and use.
Which external drives use the USB connection as a power source? Which needs a power cable?
There are two main types of external hard drives:
- Portable External Hard Drives (2.5”)
- Desktop Hard Drives (3.5”)
At the very basic level, desktop external hard drives need to be plugged into a power socket, while the portable variety draws power from the USB port when it's connected to your PC or laptop.