arithmetic-logic unit (ALU) An arithmetic-logic unit (ALU) is the part of a computer processor (CPU) that carries out arithmetic and logic operations on the operands in computer instruction words. In some processors, the ALU is divided into two units, an arithmetic unit (AU) and a logic unit (LU).
Can you donate blood if you smoke or have smoked marijuana? For those of you who did not come here to read a lengthy discussion of this topic, the answer is yes. It is perfectly fine for someone who has smoked or even regularly smokes marijuana to donate blood.
1 This is important because your body replaces the liquid volume of the donated blood within 24 hours. 2  If okay with your doctor and medical condition, eat more salty foods than usual 24 hours after you donate. 3  If you smoke, avoid smoking for 30 minutes.  Delay strenuous exercise until after your next regular, full meal.