What people are saying - Write a review
We haven't found any reviews in the usual places.
KEYSET ADDING MACHINES GROUP I TYPE 2
FOURRULE MACHINES LEVERSET HANDOPERATED
6 other sections not shown
abacus accumulator added Adding Machine adding-listing machine addition arithmetic unit arranged automatic backward turns binary busbar calculating machines carry chapter circuit clearance key cleared column complement complicated computors connected consider contacts contents of register control register corresponding counter decimal markers decimal order decimal point described devices dials Digital root divisor earthed battery electrical element entered Equations example forward turns Harvard Mark holes input instruction keyboard left-hand lever machines of Group machines of type magnet main cathodes main shaft mechanical method motor bar move multiplier register necessary number wheel operation particular plug-board possible printed product register programme punched cards register 102 relay repeat key represented result right-hand rotate setting register shown in fig shows storage registers subroutine subtraction switches tabulation tape tens transmission third transferred type of machine usually valve wiper wire zero zeroize