ca

Abbreviation of California: a state of the United States.

Abbreviation of Canada: a country in North America.

Initialism of Canadian Alliance, Conservative-Reform Alliance Party, Reform-Conservative Alliance Party.

Initialism of Computer Associates, an American software company.

Abbreviation of Cricket Australia, the governing body of cricket in Australia.

Initialism of cellular automaton.

BTW: Of course the rules were parametrised, so any totalistic 2-dimensional 9-neighbourhood CA could be run.

The new CA is a modification of Fredkin's earlier SALT architecture in which every cell is identified as either even or odd - as in sodium and chlorine in a salt crystal hence the name. The state of each cell is either up or down and the development rule simple takes account of states of odd and even neighbours. The up-date at each time step simply takes the form of a swap of the states of diagonally related cells. SALT CAs are reversible and capable of universal computation and are conjectured to be capable of universal construction in the sense of Von Neumann.

Initialism of certificate authority.

Well-designed CAs will create a trust hierarchy, which consists of a root with a number of subroots, to further enhance protection of the private key.

Initialism of armored cruiser, a type of warship.

Initialism of heavy cruiser, a variant of the cruiser type of warship.

Initialism of civil affairs, a military occupational specialty or branch.

Alternative spelling of ca..