They're a little inconvenient to carry around, but they work fine.
Any that are USB.
The WD Elements has several highly rated external hard drives to choose from, another highly rated brand is the My Passport line of external hard drives.
One can find more information about external hard drives for laptops from Amazon. The best way to find more information is from the brand of laptop website.
Mac laptops may likely have solid state drives (not hard drives). Those drives are 2.5" form factor and can be replaced by hard drives.
Laptops use 2.5 inch hard drives, while desktops use 3.5 inch hard drives.
Western Digital makes some really good external hard drives. They are fairly inexpensive. Another great company is Toshiba. There hard drives last for a very long time.
Yes they are.
There are many different brands of external hard drives. Although most people do not think they ever need an external hard drive, it is always good to have one just in case. The most reliable brands of external hard drives are Western Digital and Seagate.
External hard drives can cost a variety of prices. A good deal for an external hard drive would be anything under one hundred dollars. A good external hard drive can be purchased new for well under $100.
Laptops have two types of memory, the hard drive (used to store your video, music, and photo files) and RAM (which affects how quickly your computer runs when multiple applications are running). The trend is for newer laptops to have larger hard drives. If you need extra space, portable hard drives are available for external storage.
Western Digital and SeaGate are the top manufacturers of hard drives, internal and external.
Simpletech produce portable external hard drives. These range from small USB sticks, to larger external hard drives. Simpletech also produces mini versions of the portable hard drives