Texas Instruments TI‑503+


Brand: Texas Instruments
Model: TI-503+
Type: Calculator
Picture: TI-503+
Batteries: 189 x 1
Lifetime: Introduced: 1997
Terminated: unknown
Notes: Plain calculator in purple and green colours and rounded edges. This calculator has basic functions and constant memory. Successor to the TI 503, very similar to the TI 503SV.

As with the TI 503 the case is very hard to open when the battery needs replacement.