A bus is 80 cm long and signals travel down it at 70% of the speed of light in a vacuum. If it takes 2ns for a bus driver to turn on, and a receiver has a 1 ns setup time and a 2 ns hold time, how long does it take to perform a single end?to?end transaction?
What will be an ideal response?
The time to perform a transaction is driver time + transit time + receiver setup time + receiver hold time = 2 ns +
transit time + 1 ns + 2 ns = 5 ns + transit time.
Light travels at 
Signals on the bus travel at 70% of this or 
If the bus is 80 cm, 0.8 m,
the transit time is 
Computer Science & Information Technology
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