Yes absolutely! Most external hard drives have support for as many computers as youd like. just plug-in and go.
An external hard drive is a device similar to your computer's hard drive. The difference is that it is portable. You can save files on it and it can be connected to most other computers.
While external hard drives have the availability to work with multiple computers, it would be false to say every external hard drive works with every computer.
No
Only if you copy them.
If it is an external hard drive, then the computer should be able to take it. However, if it is an internal hard drive, you will have to check the system requirements of your computer.
If a hard drive is external to computer then it is easy to move it between computers if required or take it away for safe keeping. If it has a good had drive enclosure then it is more protected from the elements or from accidental damage.
Only if you can boot from it. Most new computers can boot from a USB drive, but older ones may not be able to.
The fastest type of external hard drive would be a external 3.0 USB hard drive.
There are many different amounts of memory that a person can store on an external USB hard drive. Generally, the largest out there is the 2 TB hard drive.
I presume you are asking if you can use an external drive on different computers? The simple answer is yes but you can't install programs on the external drive to run on other computers (except the one it was installed on), this is because programs spread themselves in different parts of the computer, so bits of the programs would be missing if you tried to run it on another computer. Other than this the only problem is viruses which can be transmitted through infected files if you aren't careful where you plug in. NOTE the external drive "could /will" change its drive letter depending how many drives are on the host computer this isn't a problem! just be ready to look for your files in a different labelled drive in "My Computer" (presuming you are using a windows computer)
You get another memory storage device, such as an external hard drive, and you copy everything on your hard drive onto the external hard drive, and keep it safe. That way, if your hard drive crashes, then you can take it out, and plug your external hard drive in, and work from that.
A hard drive enclosure plugs into a computer to provide external storage. Its main purpose is to provide extra storage on a laptop or computer and to transfer files between computers. An external drive is also useful for backing up data on a computer.