The Singer-Friden 123 is an arithmetic calculator with algebraic logic. It has an LED (light-emitting diode) display, typical of calculators of this era. The power source is 4xN. Note: Commodore MM3
Facts at a glance:
If you have a Singer-Friden 123 that is no longer working, you can consider replacing the calculator with a modern equivalent.
We suggest the following current models as possible replacements: