An engineering freshman wants to purchase a laptop computer for use during the 4 ½ years that she plans to study engineering at Texas Tech. After looking around a bit, she finds that a well-equipped laptop with software can be purchased for $1,800 and that it should have a market value of at least $300 if she wants to sell it when she graduates after 4 ½ years. Assume that maintenance and supplies will cost $100 each six months . Use an interest rate of 12% per year with monthly compounding, and determine the present cost of owning and operating the computer.