No, not quite. The choke was basically just a kludge to enrich the fuel-air mixture beyond the limits of what a carburator would otherwise be mechanically able

No, not quite. The choke was basically just a kludge to enrich the fuel-air mixture beyond the limits of what a carburator would otherwise be mechanically able to achieve. If it had had this ability -- something like "below-idle", where idle is the lower limit of where the carburator can keep the engine running -- then there would never have been a choke. Fuel injection can do that because of the different physical / mechanical way it mixes air and fuel. It has nothing to do with the computerization per se.