Mossberg says look for 500 gigabytes of storage, 4 gigabytes of memory, an i3 to i5 or i7 Intel processor, in buying a PC or laptop. He suggests waiting till fall 2012 for the new Windows 8, and summer 2012 for the newer PC's designed to use Windows 8. This will be a big change from before, because Windows 8 is designed to use the touch feature of tablets. Ultrabooks are a bit pricier, making PC's and laptops the lower cost option. Laptop makers are trying to increase margins on the machines. Mac's also will get a newer operating system called Mountain Lion by the fall.