G06F3/00
Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
G06F3/00
Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
G06F3/12
Digital output to print unit; , e.g. line printer, chain printer
G06F3/12
Digital output to print unit; , e.g. line printer, chain printer
G06F3/1223
specifically adapted to use a particular technique
G06F3/1223
specifically adapted to use a particular technique