DATAMATH PICTURES

The sales box of a Montgomery Ward P300 sold in December 1974 in the United States.
This Montgomery Ward P300 aka TXI-8663A was manufactured in November 1974 by Texas Instruments (Date code 454 » wk 45 yr 1974.
The double-sided printed circuit board (PCB) of the Montgomery Ward P300 is centered around a TMS0120 single-chip calculator circuit.
Close-up view of the TMS0120 (TMS0720) single-chip calculator circuit.
Close-up view of the SN75493 Segment Driver.	Close-up view of the SN27423 Digit Driver.
Close-up view of the Bowmar Optostic 175 Twelve-Digit Calculator Seven-Segment display.