Solid-State Drives (SSD's)?
solid state drives
Hard drives can seldom be used after degaussing because it destroys the drive's timing tracks, servo motors, and usually demagnetizes the permanent magnets of the spindle motor on sealed drives
spit on computer hard-drives
Yes
The top four brands of 1TB Hard Drives are amongst others Western Digital hard drives, Seagate hard drives, Toshiba hard drives, and Hitachi hard drives.
Hard disk drives
How are Hard drives indentified and what are their functions
Yes, they do. All hard drives are programmed to slow down the spindle and park the arm until the shock is over. So it is very hard to damage the head or platter itself if it is bumped.
Mac laptops may likely have solid state drives (not hard drives). Those drives are 2.5" form factor and can be replaced by hard drives.
hard disk drives (HDD) store all the data, operating systems (windows,mac etc) and all the files. HDD is the most important drive and there cannot be a PC without it.
Hard drives last for many years
Use windows Explorer and see how many drives there are starting at C