Memory & Storage: Crash Course Computer Science #19 скачать в хорошем качестве

Memory & Storage: Crash Course Computer Science #19

Pre-order our limited edition Crash Course: Computer Science Floppy Disk Coasters here! https://store.dftba.com/products/comp... 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". Produced in collaboration with PBS Digital Studios:    / pbsdigitalstudios   The Latest from PBS Digital Studios:    • All PBS Digital Studios videos   Want to know more about Carrie Anne?https://about.me/carrieannephilbin Want to find Crash Course elsewhere on the internet? Facebook -   / youtubecrashcourse   Twitter -   / thecrashcourse   Tumblr -   / thecrashcourse   Support Crash Course on Patreon:   / crashcourse   CC Kids:    / crashcoursekids