how computers work

and there history

Hard Drive(HDD)/SSD

HDD is a hard drive that keeps memory on it such as photo data and also writing . they are mostly used for keeping memory and data on computers. SSDs are a lot more expensive then HHDs because of the capacity of magnetic.

optical drive

An optical drive is basically a disk / cd that you can either have music on or films on or even photos. here is an example e.g compact disks and a blue- ray disk and there is also a image as well

Big image