rand 409造句

• In 1949, Remington Rand designed the Remington Rand 409, a control panel programmed punched card calculator ( but not introduced as a product until 1952 as the UNIVAC 60 then in 1953 as the UNIVAC 120 with double the memory ).
• In 1933 The Tabulating Machine Company was subsumed into IBM . These companies continued to develop faster and more sophisticated tabulators, culminating in tabulators such as the 1949 IBM 407 and the 1952 Remington Rand 409 . Tabulating machines continued to be used well after the introduction of commercial electronic computers in the 1950s.