How do I know if my PC is compatible?
Modern computers use a standard interface called SATA (Serial AT Attachment). Unlike legacy systems using IDE (Integrated Drive Electronics), SATA eliminates the need for large ribbon cables/connectors which is less than desireable for compact devices like laptops. If the system you are using was made pre 2005 you may want to double check to ensure you do not have an IDE hard drive.
My laptop hard drive has a caddy. Does this prevent me from installing a new drive?
Certainly not. A caddy can typically be removed by unfastening four side screws.
What size hard drive do I need for my laptop?
Great question! We've got the answers right here, in fact. Most notebook and laptop PCs require a 2.5 inch Hard Disk Drive. Laptops these days are getting thinner and thinner, so make sure the hard drive you get is not just a 2.5" HDD, but also that it's the proper height, generally 9mm or 7mm by today's standards.
Are HDDs Obsolete?
There are a lot of emerging technologies coming to the foreground of computer storage, but HDDs are not dead. In fact, there's still some great reasons to buy HDDs over other storage solutions. The two biggest reasons are the low cost and high capacity. You can typically get more than triple the storage of an SSD when buying a traditional hard drive! Even if you aren't going to use a HDD as a boot disk, the benefits of being able to buy nearly ten times the storage for half the cost seems enticing.