National SemiConductor 842
The National SemiConductor 842
is
an arithmetic
calculator with unknown digits precision
and
algebraic logic.
It has
an unknown number of functions, unknown keys
and
an LED (light-emitting diode) display, typical of calculators of this era. The power source is
PP3 9V.
Facts at a glance:
| Type |
Arithmetic |
| Functions |
unknown |
| Keys |
unknown |
| Precision |
unknown |
| Logic |
Algebraic |
| Display type |
LED |
| Display size |
|
| Printer |
|
| Length |
152 mm |
| Width |
76 mm |
| Thickness |
unknown mm |
| Weight |
unknown g |
| Power Source |
PP3 9V |
| Country |
|
| Original price |
unknown |
| Est. current value |
unknown |
| Year introduced |
|
| Year discontinued |
|
See other calculators manufactured by National SemiConductor.