Building logic ... AND gate in a 7408 logic chip. While the team has only made OR and AND gates – nothing functionally complete yet – there’s no reason to believe this crab-based system ...

Logic gates have one or two 0 or 1 inputs but only one 0 or 1 output as in the following examples. Transistors make up gates, gates make up circuits, and circuits make up electronic systems.

For those just getting their start in digital logic, this teaching tool allows different logic gates to be wired together with patch cables. While [David] first thought to use 74-series logic ...