Printing tabulator Hollerith's tabulators were non-printing, displaying numbers on a row of mechanical counters. One of these tabulators, built in 1931, was The Columbia Difference Tabulator. To process these punched cards, he invented the tabulator and the keypunch machine. His tabulator used electromechanical solenoids to increment mechanical counters. Votes cast on all of his punched machines could be tabulated on a pneumatic tabulator. The tabulator used electromechanical relays to increment mechanical counters. Removable control panels were introduced with the Hollerith (IBM) type 3-S tabulator in the 1920s. The 285 Numeric Printing Tabulator could read 150 cards per minute. The Census Bureau Machine Shop introduced the first printing tabulator in 1906. The 1890 Tabulator was hardwired to operate on 1890 Census cards. New Brunswick used Dominion's 763 tabulator machines in the 2014 provincial elections. The first TMC printing tabulator was developed in 1920. Ontario was the first Canadian province to use Dominion's tabulator machines in the 2006 elections. The game features a Ghost counter on-screen scoring system named the "Ectoplasmic Tabulator". SGV & Co. was the official tabulator.