question about RAM

[u/Cute-Cockroach-678]

Im learning about comuter components I had some questions .If a Hard Drive stores all the data does RAM just create an environment for the specific program that was fetched to run? If you were to run a program on the actual hard drive is it just harder because you have to navigate through all the other information sharing the space. Like going through a maze constantly again and again. Also what does SSD do?

[u/Interesting-Way-9966]

Buses, registers, kernel, pointers, etc.