Video: Arithmetic Logic Unit (ALU): Definition, Design & Function. An arithmetic logic unit (ALU) represents the fundamental building block of the central processing unit of a computer. An ALU is a digital circuit used to perform arithmetic and logic operations.
Snake Crawls up a Wall. 02.10.2008 - Many people ask me about the climbing capability of snakes. In particular, people want to know if snakes can get up into their attic. The answer is that yes, some species of snake are excellent climbers, and can climb walls.
Facts About Black Snakes. Diet: Black snakes mostly eat rodents, lizards, birds, and bird eggs. Rat snakes are constrictors while black racers generally arenât. They can climb trees; and, if you donât protect your bird houses with baffles, will break your heart by invading the nests. Smell: Rat snakes emit a musky smell when threatened.