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.
Itâs unlikely that they climb high block walls; however, many harmless non-venomous snakes can and do climb walls and shrubs. On the other hand, rattlesnakes are adept at swimming and will take to water readily in order to pursue food, mates and refuge, and to escape harassment.