Yes, if you are speaking of the hard drives that you put into your computer. Your computer usually comes with one hard drive, but if you need another one, you can install another one you can buy at a computer store. Normally computers come with 2-3 extra hard drive slots in case you'd like to add more.
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Discs and SSDs Solid State Drives
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
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Yes you can transfer files between 2 hard drives. Make one hard drive a slave and another the master.
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.
The computer BIOS will decide which will be read first.
Hard drives last for many years
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