If You Are Still Trying to Decipher the Difference Between Flash Drives and Hard Disk Drives, This May Help
Solid-state disks (SSD) are probably some of the most talked-about new gadgets of late. They easily distinguish themselves from the mechanical hard drives of the Jurassic period because they have no moving parts. Like USB drives, they use nonvolatile flash memory to store data, but SSDs are wrapped in an enclosure the size of a 2.5-in. mechanical laptop drive and have a SATA interface for an easy connection to the internals of your portable.
Having no moving parts is, naturally, important. There’s no platter rotation or read/write head motion so SSDs — in theory — should use less power than equivalent mechanical hard drives. They should also (again, in theory) be faster than a mechanical hard drive at just about anything. Working off an electrical grid, there’s no time wasted positioning the read/write head and then waiting for it to settle down and start doing its thing. SSDs just do it. (That’s a bit of an oversimplification, but it’s fair.)
So have you ever wondered if it’s really worth it to plunk down the extra $1,300 for an SSD-equipped MacBook Air? Or have you been tempted to swap the current mechanical hard drive out of your portable and slide one of these high tech bad boys inside? I did.
