For anyone interested, you can catch the demo here, starting at 1:09:25 (it's about 4 minutes long).

There's some good discussion on the previous slide, but here are some of the highlights:

• 3 students needed to talk to the processor (Kayvon); initially at the same time.
• The burst caused contention because it took some time for Kayvon to shake each hand.
• Next the students walked to Kayvon in random order.
• Pipelining these "requests" reduced contention.

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