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.
Avoid certain activities. In the hours leading up to your appointment, you need to avoid certain activities that may hurt your chances of donating or contaminate your blood. You should not smoke within the hour leading up to your appointment. You should also avoid alcoholic beverages in the 24 hours before you donate. You should also not chew gum, mints, or candy in the hours before your donation. Chewing gum, mints, or candy makes the temperature in your mouth go up, which could make it seem like you have a fever and make you ineligible to give blood.