adding machine

For much of the 20th century, financial modeling meant working with a rudimentary, laborious set of tools: eight-column ledger paper, mechanical adding machines or hand-held calculators.

“It’s kind of the Stone Age here,” said Tom, pointing to a dusty hand-cranked adding machine on the counter.

One person asked for the entire recount of a contested state Supreme Court race from 2020 — a very long paper record resembling an adding machine tape that took days for one employee to copy.

In fact, the prisoners detailed to the operation did little but operate adding machines, performing meaningless mathematical operations, and other useless tasks.

He made ends meet by repairing typewriters and adding machines.