Final answer:
A rise in demand is most likely to explain the outcome of many more computers selling at much lower prices in the computer market.
Step-by-step explanation:
The shift in demand that is most likely to explain the outcome of many more computers selling at much lower prices in the computer market is a rise in demand.
A rise in demand means that there is an increase in the quantity of computers demanded at each price level. This can be due to factors such as technological advancements, increased consumer preferences for computers, or changes in consumer income.
When there is a rise in demand, the demand curve shifts to the right. This leads to an increase in both the equilibrium price and quantity of computers in the market.