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.
A Solid State Hard Drive (SSD) is a disk that does not have any mechanical parts where the data storage happens using integrated circuits. A hybrid Drive consists of both of these: a mechanical hard disk plus a SSD. Mechanical hard disks are low in cost and their capacities are very large.