Listed below are several items which would affect the market for personal computers. For each event, do the following: 1) Tell whether the event shifts demand or supply, 2) tell whetherthe curve increases or decreases. and 3) report the predicted change in price and quantity of personal computers. a) A fall in the price of software b) A government subsidy to computer makers c) A decrease in consumers' income due to a recession d) An increase in the price of silicon (used in making all kinds of computer chips like CPU's, memory chips, etc)