The number of logical processors (processors that the operating system and applications can work with) is (usually) greater or equal to the number of physical processors (actual processors on the motherboard). For example, a hyperthreaded processor with 4 physical processors will have 8 logical processors.
Usually, during the initial 6-months of pregnancy (that is 1 st & 2 nd trimesters), you will not have the need to consume more calories. This is usually about 2000-calories per day. On the other hand, the last 3 months of pregnancy (that is 3 rd trimester), you need additional 200 to 300-calories, which makes it to 2200 to 2300-calories per day.
So your increase in food intake should be only about 20%, assuming you were on a 1500-calorie diet before becoming pregnant. While your appetite may change during pregnancy, it is still important to follow correct nutritional guidelines. Experiencing a change of appetite during pregnancy in which you have a loss of appetite is less common. There are some conditions, however, that can cause you to experience appetite loss during pregnancy. If your appetite decreases during pregnancy, you should speak with your health care provider. It may be that there is a physiological problem that she needs to help you address.