![Image of CALCULATORS. - Four Texas Instruments Calculators. Left To Right: TI-2500, Introduced In 1972; TI SR-50, Introduced In 1973; TI-12; And The TI-81, Introduced In 1990. From Granger - Historical Picture Archive Image of CALCULATORS. - Four Texas Instruments Calculators. Left To Right: TI-2500, Introduced In 1972; TI SR-50, Introduced In 1973; TI-12; And The TI-81, Introduced In 1990. From Granger - Historical Picture Archive](https://granger.com/wmpix/tec/cal/0120849-CALCULATORS-Four-Texas-Instruments-Calculators-Left-to-right-TI-2500-introduced-in-1972-TI-SR-50-introduced-in-1973-TI-12-and-the-TI-81-introduced-in-1990.jpg)
Image of CALCULATORS. - Four Texas Instruments Calculators. Left To Right: TI-2500, Introduced In 1972; TI SR-50, Introduced In 1973; TI-12; And The TI-81, Introduced In 1990. From Granger - Historical Picture Archive
Greg Maletic on X: "Today's calculator: the Texas Instruments SR-22 (1973, $350). Designed for programmers, it does math in decimal, hex, or octal! https://t.co/IhHkyq9xc4" / X
![File:Vintage Texas Instruments Datamath Pocket LED Calculator, Model TI-2500, Version 3, Made in the USA, Circa 1973 (9288612296).jpg - Wikimedia Commons File:Vintage Texas Instruments Datamath Pocket LED Calculator, Model TI-2500, Version 3, Made in the USA, Circa 1973 (9288612296).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/6/64/Vintage_Texas_Instruments_Datamath_Pocket_LED_Calculator%2C_Model_TI-2500%2C_Version_3%2C_Made_in_the_USA%2C_Circa_1973_%289288612296%29.jpg)
File:Vintage Texas Instruments Datamath Pocket LED Calculator, Model TI-2500, Version 3, Made in the USA, Circa 1973 (9288612296).jpg - Wikimedia Commons
![Vintage Texas Instruments Electronic Pocket Calculator, Model SR-10, Red LED Display, First Of A Line Of TI Slide Rule Models, Sealed Battery, Price - 149.95 US… | Pocket calculators, Calculator, Slide rule Vintage Texas Instruments Electronic Pocket Calculator, Model SR-10, Red LED Display, First Of A Line Of TI Slide Rule Models, Sealed Battery, Price - 149.95 US… | Pocket calculators, Calculator, Slide rule](https://i.pinimg.com/736x/53/38/22/533822b73ad86e14cfdddfe131f890c8.jpg)
Vintage Texas Instruments Electronic Pocket Calculator, Model SR-10, Red LED Display, First Of A Line Of TI Slide Rule Models, Sealed Battery, Price - 149.95 US… | Pocket calculators, Calculator, Slide rule
![File:Vintage Texas Instruments Datamath Pocket LED Calculator, Model TI-2500, Version 3, Made in the USA, Circa 1973 (41029101670).jpg - Wikimedia Commons File:Vintage Texas Instruments Datamath Pocket LED Calculator, Model TI-2500, Version 3, Made in the USA, Circa 1973 (41029101670).jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/7/7e/Vintage_Texas_Instruments_Datamath_Pocket_LED_Calculator%2C_Model_TI-2500%2C_Version_3%2C_Made_in_the_USA%2C_Circa_1973_%2841029101670%29.jpg)
File:Vintage Texas Instruments Datamath Pocket LED Calculator, Model TI-2500, Version 3, Made in the USA, Circa 1973 (41029101670).jpg - Wikimedia Commons
![VINTAGE TEXAS INSTRUMENTS CALCULATOR ~ TI-5033SV ~ ELECTRIC & BATTERY - collectibles - by owner - sale - craigslist VINTAGE TEXAS INSTRUMENTS CALCULATOR ~ TI-5033SV ~ ELECTRIC & BATTERY - collectibles - by owner - sale - craigslist](https://images.craigslist.org/00b0b_d4J18JgNaec_0CI0t2_600x450.jpg)
VINTAGE TEXAS INSTRUMENTS CALCULATOR ~ TI-5033SV ~ ELECTRIC & BATTERY - collectibles - by owner - sale - craigslist
![fax] of Texas Instruments] Annotation: Probably concerns the Silent 700 Electronic Data Terminal model 725 Date: 1973 Location: Arnhem Keywords: computers, men Stock Photo - Alamy fax] of Texas Instruments] Annotation: Probably concerns the Silent 700 Electronic Data Terminal model 725 Date: 1973 Location: Arnhem Keywords: computers, men Stock Photo - Alamy](https://c8.alamy.com/comp/2APNNG9/fax-of-texas-instruments-annotation-probably-concerns-the-silent-700-electronic-data-terminal-model-725-date-1973-location-arnhem-keywords-computers-men-2APNNG9.jpg)
fax] of Texas Instruments] Annotation: Probably concerns the Silent 700 Electronic Data Terminal model 725 Date: 1973 Location: Arnhem Keywords: computers, men Stock Photo - Alamy
![Greg Maletic on X: "Today's calculator: the Texas Instruments SR-22 (1973, $350). Designed for programmers, it does math in decimal, hex, or octal! https://t.co/IhHkyq9xc4" / X Greg Maletic on X: "Today's calculator: the Texas Instruments SR-22 (1973, $350). Designed for programmers, it does math in decimal, hex, or octal! https://t.co/IhHkyq9xc4" / X](https://pbs.twimg.com/media/DLyzUvfVoAA5CzL.jpg:large)