Was there life before computer?

calculating instruments before the digital era

Start set: what to buy

Do you want to practice with the old computing systems, using the original instruments? To buy the indispensable calculators is not expensive and you can find everything on the internet.

To start you just need an addiator, a pascaline and a slide rule. Big calcu- lators as Brunsviga, Odhner, Triumph, Thales etc., are very complicated and often not working.

The addiator is easy to use, buy it only if in perfect conditions and with its original stylus.

Addiator        Pascalina Sterling

Addiator and Sterling Dial-A-Matic

To buy a pascaline we have a limited choice: the economic Sterling Dial-a-Matic, the beautiful Lightning or the most complete Addometer, the latter exist in decimal, duodecimal and eights version. For the children is ideal the Quercetti Zero+1, for sale in toy stores. Remember that they must always have their original stylus.


The Addometer

Addometer Lightning

The Lightning

Consul Monkey

The Quercetti Zero+1

Find a slide rule is easy. Search for a standard model (the pocket ones are hard to read) and avoid the monsters with 34 scales that would end immediately forgotten in a drawer. If you like to try a pilot watch the choice is wide and for all budgets. Buy a big one, otherwise it is difficult to use: the Casio Edifice, for example, is great to learn and cost very little money.

Regolo calcolatore Pickett 903-T

Pickett 903-T, many slide rules are still new in their box

Let's not forget the Consul Monkey, invented at the beginning of last century to teach the multiplication tables to the children. The originals are rare and expensive but fun is guaranteed with the reproductions. A last note on calculators: if you want to try the old keyboards a good solution is the Torpedo calculator, with only half keyboard. All the excitement of the accoun- ting of yesteryear in a calculator that, in principle, always work or can be repaired without too much trouble.

Consul Monkey

The amazing Consul Monkey

Calcolatrice Torpedo        Casio Edifice

Torpedo calculator and Casio "Edifice" Pilot Watch

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Nicola Marras 2008


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