How a Computor works / The History
By Kacey Campion. 7T3
Hard Drive (HDD)/SSD
HDD is a disk drive used to read and write hard disk. they are mostly used for storage on a computer. However any kind of SSD that appears to the system as a disk drive. SSDs are more expensive that the same capacity of magnetic disk but have much shorter access time.
An optical disk reads or writes optical media eg: Compact disks, DVD's and blue ray disks. At least one such drive is commonly installed in most personal computer to allow them to play and/or record audio and video media and load and store data such as program installers.