Hard Drive Types

Question 1

Hard disk drive is abbreviated as HDD

What are the components?

Answer 1

there are three main components, the controller, the hard disk, and a host bus adapter or HBA

HD: solid metal disc that conducts electricity very well as it’s written by an electric charge.
- Each disc is referred to as a platter that has a top/ bottom layer. So 3 discs would equal 6x writable surfaces.

the controller, as its name indicates, controls all of the operations of the drive

Host Bus Adapter: acts as the translator converting signals from comp to elec charges so they can be written.
The language it uses is binary. so 1’s and 0’s.

Question 2

Most common type of interface for a HDD?

Answer 2

is what’s known as serial ATA or SATA

Question 3

8 inch vs 2.5 inch vs 3.5 inch

Answer 3

So 1.8 inch, not very commonly used but it does exist. The most common are 2.5 in a laptop or perhaps a portable external drive. And 3.5 inch is the mainstream type used in a desktop system. Now, a solid-state drive is a little bit different.

Question 4

SSD

Answer 4

They require less power, they produce less noise, and they’re usually physically smaller as well
Solid state: no moving parts, nonvolatile nand flash memory.
-does not require power to retain data-

Question 5

Hybrid drives

Answer 5

hybrid drives which are a combination of hard drives with some solid-state memory as well.
They tend to have greater capacity than the solid-state drives. And they do offer performance that is probably somewhere in between