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 zip drive is a combination of read/write technology. There are two parts to the head of a zip drive that interface with the computer to transport data. Inside the disk is a quick spin cartridge-like part that is similar to the flexible part of a floppy disk. That is where the code is written for storage. Unlike the floppy, the zip drive uses a 9cm micromaterial, which is much smaller and has a larger capacity due to technological innovations. A zip drive is faster than a floppy, but it cannot be compared to the hard drive that is built into the interior of a computer tower and connected to the motherboard. If you were to compare zip drives to a hard drive in the interior of a computer, you would find the hard drive to be about four times faster.