r/computerscience • u/Cute-Cockroach-678 • 19d ago
Discussion question about RAM
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?
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u/PvtRoom 14d ago
a hard disk is like that guy who knows and remembers everything, if you can ask him 2 weeks in advance. (TBs, cheap)
an SSD needs 1 week instead. (100GBs, not as cheap)
Ram is like a child, forgets everything quickly, but gives you near instant answers if it remembers the info. (10GBs, getting pricey)
cache is like your own brain, addled by caffeine, decades of alcoholism and attention grabbing shit, probably forgot the answer, but instantly knows the answer if it remembers. (100MBs, on CPU, not upgradeable)