Pulse signals of different weights are introduced from different input terminals into the present count system in a parallel fashion, respectively. Each number of the pulse signals of different weights are counted in a binary code notation. There is provided a weight information generator which generates weight signals, in a binary coded decimal notation, dependent upon the weight of the weighted pulse signals. Each of the weight signals are repeatedly added, each number of the repetition being identical with the counted number of the pulse signals of different weights introduced into the present system. A desired information may be obtained by totaling the results of these additions.