FARHAN RUBEL MIAH.
There are two types of hard drives. HDD which stands for Hard Drive Disk and SSD stands for Solid State Drives. These are the types of hard drives. A HDD is a magnetic disk which spins inside your computer/laptop, making quite a strong sound. An SSD drive is a flash drive which hardly makes any sound at all, takes less space& also lasts longer. The SSD drive doesnt need a fan because it uses electronic parts instead of using a fan to keep the heat out of a laptop/computer.