Electromechanical Calculator Monroe
MONROE CALCULATING MACHINE COMPANYΎψος (m):0.16 Διάμετρος (m):0.00 Πλάτος(m):0.27 Βάρος (Kgr)0.00 Αναλυτικές διαστάσεις:
Μήκος (m):0.34 Βλέπε ΨΦ 2876_2.jpg
Mechanical or analogue computers (calculators) used gears and levers to do the operations. The operations are done as follows: keys are pressed to form the first number. The last column corresponds to units, the next column to tens, etc. The lever is turned to the side and the number is displayed on the dial (at the top of the machine) while the keys return to their normal position. Each key is connected to a gear system. The digits of the second number are pressed. Turning the lever clockwise will add the second number to the original number. If the lever is turned counterclockwise, the second number will be subtracted from the first. The result will be displayed on the dial. Multiplication is done as successive additions - that is, after the first number is passed, the lever is rotated as many times as the number to be multiplied by. Similarly, division corresponds to several subtractions of the same number, so the machine records how many times the divisor is subtracted. In electromechanical calculators the rotation of the gears is done by means of an electric current.
