Logic gate

A logic gate is a circuitry component that performs one or more boolean functions on a signal. A Toffoli gate is an example.

x = 78, y = 24, rule = B3/S23 17b2o27b2o27b2o$17bo28bo28bo$15bobo26bobo26bobo$14bobo26bobo26bobo$5bo 4b2o3bo23b2o3bo18bo4b2o3bo$6bo3b2o27b2o23bo3b2o$4b3o55b3o11$16b2o27b2o 27b2o$11b2o3bo23b2o3bo23b2o3bo$11b2o4b3o20b2o4b3o20b2o4b3o$19bo28bo28b o$3o26b3o$2bo28bo$bo28bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 THEME Book WIDTH 800 AUTOSTART LOOP 120 PAUSE 3 GPS 10 ]]

An AND gate with SW and NW input left: 1 AND 1 = 1 • center: 1 AND 0 = 0 • right: 0 AND 1 = 0 (click above to open LifeViewer)

x = 49, y = 36, rule = B3/S23 42b2o$42b2o6$obo$b2o$bo$42b3o$41bo3bo$40bo5bo$40bo5bo$8bo34bo$9b2o30bo 3bo$8b2o32b3o$43bo3$44b3o$44b3o$43bo3bo$37bobo$37b2o3b2o3b2o$38bo4$23b o$24b2o5bo$23b2o4b2o$30b2o2$44b2o$44b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ ZOOM 8 THEME Book HEIGHT 560 AUTOSTART LOOP 180 GPS 10 Y 16 ]]

A NOT gate with NW input and SW output The period 30 output stream (NOT 0 = 1) is interrupted by an input bit (NOT 1 = 0) (click above to open LifeViewer)

See also

• Tutorials/General technology

Further reading

• Jean-Philippe Rennard, Implementation of logical functions in the Game of Life