. The Bell System technical journal . Fig. 12 — No. 5 number group. could be any other unit, for example, a trunk circuit. The principalpoint is that each wire on such a unit is remembering some passivef| relationship between the active portions of the circuit, such as is the memory of the contact and coil interrelationships as con-ceived by the designer and based on the requirements of what the cir-cuit is required to accomplish. It is the program of what the centraloffice must do at each step of every type of call. Modern digital com-puters have been built with the ability to sto
. The Bell System technical journal . Fig. 12 — No. 5 number group. could be any other unit, for example, a trunk circuit. The principalpoint is that each wire on such a unit is remembering some passivef| relationship between the active portions of the circuit, such as is the memory of the contact and coil interrelationships as con-ceived by the designer and based on the requirements of what the cir-cuit is required to accomplish. It is the program of what the centraloffice must do at each step of every type of call. Modern digital com-puters have been built with the ability to store programs in bulkmemories for the solutions of the various types of problems put to is conceivable that the program of a telephone contral office may alsoI >e stored in bulk memories to eliminate the need for much of the fixedwiring such as appears in relay call processing circuits. 1004 THE BELL SYSTEM TECHNICAL JOURNAL, SEPTEMBER 1956. Fig. 13 — AMA translator. ELECTRONICS IN TELEPHONE SWITCHING SYSTEMS 1005
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttechnology, bookyear1
