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zakruti.com » Knowledge, science, education » Crash Course
Memory & Storage: Crash Course Computer Science #19

Memory & Storage: Crash Course Computer Science #19

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Rating: 4.0; Vote: 1
Pre-order our limited edition Crash Course: Computer Science Floppy Disk Coasters here! So we-ve talked about computer memory a couple times in this series, but what we haven-t talked about is storage. Data written to storage, like your hard drive, is a little different, because it will still be there even if the power goes out - this is known as non-volatile memory. Today we-re going to trace the history of these storage technologies from punch cards, delay line memory, core memory, magnetic tape, and magnetic drums, to floppy disks, hard disk drives, cds, and solid state drives. Initially, volatile memory, like RAM was much faster than these non-volatile storage memories, but that distinction is becoming less and less true today. CORRECTION: AT 5: 00 we say around 9 kilobytes when we should have said kilobits
Date: 2022-04-04

Comments and reviews: 8


I have to mirror many fellow commenters in saying boy I feel old. I remember as a sophomore in high school back in 2004 and I was the first person to get a 256 MB flash drive (for $50. I was the 'big man on campus' because of it (or at least in my geeky circle of friends. I think part of what makes us (late 20's, early 30's) feel so old is that we grew up right through the technological explosion.
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Madam! Plz guide about memory
Basically two types of memory
RAM and ROM? So ROM is the fixed memory which means non changeable like as storage means harddisk etc so you were asking that memory is the temporary but ROM is permanent and it is also part of memory?

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I remember trying to save word docs with loads of clip art on a floppy disk but was so confused as to why I could never save even one document while my mum was able to save lots of word docs with no pictures - Eventually it clicked
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It's sad that it took me almost 29 years to find out how memory is stored, but it only took me like 8 to find out how to erase floppy disk memory. Slide that slider, baby. Right and left. Fast as you can.
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I remember when you could buy floppy discs for a dollar with programs you could try before you might want to buy the original. The little cards on Star Trek that Spock used was a prediction of floppy discs.
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I have a question. Why there are so many short terms memories available? Why not only one? Why so many like Ragisters, Cache and Ram. Need your help and waiting for your reply -
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Why can't she talk slower so people can hear, understand, and learn? Is she on steroids or some cocaine? All that useless brain just for herself.
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5: 56 -If you have that kind of money to drop, did you know that CrashCourse is on Patreon? Wink wink--
-Stop. I'm laughing too much. -

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