DATAMATH PICTURES

The sales box of a TI-1798 sold in 1991 in the United States.
This TI-1798 Desktop Calculator was manufactured in March 1991 by Inventec Corporation in Malaysia (Date code I-0391 » mth 03 yr 1991).
The TI-1798 manufactured in Malaysia is powered by 4 solar cells and a small backup battery.
Close-up view of the Toshiba T9731BU single-chip calculator circuit.	Close-up view of the PCB-Mark of a TI-1798.