TI 3500 - Introduction
Texas Instruments TI 3500 was introduced in 1972 in the USA as business 10-digits desktop calculator
with four basic operations (addition/subtraction and multiplication/division), chain and constant.
It has one memory. The calculator works either in floating mode or in fixed mode with 2- or 4-digit's
An introductory price in 1972 was $99.95.