Don't take your USB memory stick for granted. An engaging video describes the evolution of computer memory and storage devices over time. It covers punch cards, delay line memory, magnetic core memory, magnetic tape, magnetic drum memory, hard disks, floppy disks, and CDs.

Concepts

computer science, computer hardware, memory, technology resources

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Instructional Ideas

• Provide learners with a blank copy of the memory hierarchy to fill in while (or after) watching the video
  

Classroom Considerations

• Pupils should have some prior understanding of computer memory
• Builds on information from previous videos (this is the 19th installment of the Crash Course Computer Science series)
  

• This video is hosted on YouTube

Pros

• Thorough, comprehensive explanations
  
• Pictures and video footage lets viewers see historical devices

Cons

• None