For women giving birth for the first time, the mucus plug is usually expelled days before labour begins and may often be a sign of early labour. Generally, it is never reason to worry regardless of whether the mucus plug is released early or late.
Hard drive. A hard disk drive (sometimes abbreviated as Hard drive, HD, or HDD) is a device used to permanently store and also retrieve information. There are many variations, but their sizes are generally 3.5 and 2.5 for desktop and laptop computers respectively.
Confidence votes 17. Yes, a hard drive is more properly called a hard disk drive. They are not the same thing, but a hard disk drive is a type of disk drive, just like a floppy disk drive is another type, and just like a soft armor and hard armor are both types of armor.You can pretty much use disk drive and drive interchangeably in computer contexts.ou don't SEE the disk(s), because they're locked inside, and so you could easily wonder if it's actually a disk drive. Some people use hard drive and hard disk interchangeably, probably because they're not really sure what the difference is.