adding machines

Desk arithmetic devices

Adding machines are mechanical or electronic devices designed for arithmetic calculations, particularly addition.

Before electronic calculators became ubiquitous in the 1970s, adding machines were standard office equipment, typically featuring a keyboard for entering numbers and a paper tape that printed results.

The term now sounds dated, though some receipt-printing calculators still resemble the original design.

arithmetic

sum

Addition's result

multiplication · division · decimal · calculation · tally · running total · subtotal · carry · column · figures

mechanical

gears

Toothed rotating machine parts

  • leversForce-multiplying pivot bars
  • crankRotary operating handle
  • keysLock-operating instruments

carriage · register · counter · mechanism · ink ribbon · paper tape · sprocket · tabulator · hand-crank · Burroughs

accounting

ledger

Financial record book

accounts · balance · payroll · receipts · tallying · reconciliation · clerks · office · commercial · business

vintage

antique

Old valued collectible

classic · relic · restoration · artifact · museum · obsolete · patina · desktop · twentieth-century · clerks

Categories
Opposites
computational method

adding machinesmental arithmetic

Computing numbers without tools

abacuses · tally sticks · slide rules

computational capability

adding machinessupercomputers

Extremely powerful computing machines

quantum computers · computers · mainframes · digital computers · artificial intelligence

cognitive approach

adding machinesmental calculation

Math done in mind

mental math

Family

machine, addition, added, adding, machinery, additional, machines, additive, adder

Familiarity
Top 200,000
Profile
Used worldwide · Timeless · Concrete · Everyday, not technical · Rated G