Explanation:
Over the past several decades, advances in technology, greatly reduced the cost of making computers which resulted in the decline of the equilibrium price of computers and also resulted in increased equilibrium quantity. The reduction in the computer prices also caused an increase in the consumer surplus.
computer price down -> equilibrium price down
computer price down -> equilibrium quantity up
computer price down -> consumer surplus up
The producer surplus increases due to increase in quantity and at the same time producer surplus decreases due to decrease in price.
computer price down -> producer surplus down
computer quantity up -> producer surplus up