TI number: S00022
Calculator - This was a prototype used in a QRA evaluation. This type was not put into production.

The QRA test were satisfactory.

Summary comment by: Bill Heye, Ralph McCullough.

TI number: S00209
Calculator - Calculator is one of the early production models. The SR-10 was called a slide rule calculator. It was the first TI product for technical use, being capable of handling simple slide rule calculations.

The SR-10 was an LED model operation from batteries with a charger available. The model was introduced in late 1972, and this calculator was built in about the third quarter of 1972.

Related material in collection: S00312, 405. Summary comment by: Lee Kitchens, C.B. Wilson.

TI number: S00021
Calculator - This calculator, serial number 2074, was built about August, 1982. It was one of the limited number of prototypes built for internal evaluation. A small portable plug-in printer was designed to work with the calculator.

Although the calculator operated essentially as planned, it was not released for production. The projected manufacturing costs were to high and some minor problems required work. At the time, the division's major project was the TI99/4 Home Computer; and the required corrective effort was not available for the calculator. When work could be resumed, technical progress resulted in the decision to proceed with more advanced designs, such as the TI95.

Summary comment by: Doyle Evans, Darrell Whitten, C.B. Wilson.

TI number: S00214
Calculator - The TI-MEC was an experimental TI design. It was the first effort at an educational calculator for young children. It was part of a 1976-7 program and led to the ABLE calculator.

The educational program was done in conjunction with the Lawrence Hall of Science at the University of California, Berkeley. The Calculator has only the C, 1, 0, + and = keys. It operated on batteries with a charger available.

TI number: S00242
Calculator - The item is a production model of the TI-1500 electronic calculator with AC9140 AC Adapter Charger.

The date of manufacture is not known. The calculator IC is TMS0803, date code 7517-1. The display is LED.

Summary comment by: Doyle Evans, C.B. Wilson.

TI number: S00211
Calculator - The TI-2550 calculator was a single memory LED model operating from batteries with a charger available. The position of the decimal point was adjustable at two or four places or floating.

Summary comment by: Doyle Evans, C.B. Wilson.

TI number: Z00243
Calculator - This item is an early hand held calculator built by Canon Inc., Japan, using TI MOS IC's built prior to the introduction of the single chip calculator IC. This unit was probably built in late 1971.

The calculator includes a detachable base which contains a charger and is powered by 2 "AA" rechargeable batteries in a replaceable pack. It has an LED display and two TI custom MOS IC's. They are TMC1824NC, date code 7145, and TMC1825NC, date code 7147, both in 40 pin plastic packages. NOTE: The calculator is in operating condition.

Related material in collection: Z00408.

TI number: S00210
Calculator - The SR-50 was the first TI calculator designed to handle the complex technical calculations equivalent to an advanced slide rule. It was a single memory LED model operating from batteries with a charger available.

The SR-50 was introduced in late 1973.

Summary comment by: Doyle Evans, Lee kitchens, C.B. Wilson.

TI number: S00216
Calculator - The TI-5050M was the first portable paper tape calculator marketed by TI. A thermal printhead was used. It was operated from batteries with a charger available.

The lack of a label with a serial number indicates this calculator probably was an engineering prototype model. It does not have a charger with it.

Summary comment by: Doyle Evans, C.B. Wilson.

TI number: Z00217
Calculator - This calculator was one of the first models using the TI "calculator-on-a chip" integrated circuit. Several (probably eight) of the first production calculators were given to TI as a courtesy to evaluate.

A TMS0103NC, date code 7211, was used in the calculator. The basic chip design was known as the TMS0100, and the custom variations were assigned succeeding numbers. The device date code (eleventh week of 1972) and memory indicate this calculator was built about mid 1972. It may be noted that the TI Minimath and Datamath used the TMS0111 chip. (See G00123.) This calculator, which operates only on AC, was used for several years by Norman Ince and is still in operating condition. The only problem reported was that the key contracts required occasional cleaning. This was a typical problem of the early table model calculators which did not use a sealed keyboard.

Summary comment by: Norman Ince.

TI number: S00215
Calculator Keyboards, Set of - These items are removeable keyboards for the ABLE calculator which was used in a program to develop training aids for children in kindergarden and the first grade. This was a 1976-7 program.

The educational program was done in conjunction with the Lawrence Hall of Science at the University of California, Berkeley.

Related material in collection: S00214. Summary comment by: Jerry Luecke, Ralph Oliva, Joe Poyner.

TI number: S00215
Calculator Keyboards, Set of - These items are removeable keyboards for the ABLE calculator which was used in a program to develop training aids for children in kindergarden and the first grade. This was a 1976-7 program.

The educational program was done in conjunction with the Lawrence Hall of Science at the University of California, Berkeley.

Related material in collection: S00214. Summary comment by: Jerry Luecke, Ralph Oliva, Joe Poyner.

TI number: S00215
Calculator Keyboards, Set of - These items are removeable keyboards for the ABLE calculator which was used in a program to develop training aids for children in kindergarden and the first grade. This was a 1976-7 program.

The educational program was done in conjunction with the Lawrence Hall of Science at the University of California, Berkeley.

Related material in collection: S00214. Summary comment by: Jerry Luecke, Ralph Oliva, Joe Poyner.

TI number: S00215
Calculator Keyboards, Set of - These items are removeable keyboards for the ABLE calculator which was used in a program to develop training aids for children in kindergarden and the first grade. This was a 1976-7 program.

The educational program was done in conjunction with the Lawrence Hall of Science at the University of California, Berkeley.

Related material in collection: S00214. Summary comment by: Jerry Luecke, Ralph Oliva, Joe Poyner.

TI number: S00215
Calculator Keyboards, Set of - These items are removeable keyboards for the ABLE calculator which was used in a program to develop training aids for children in kindergarden and the first grade. This was a 1976-7 program.

The educational program was done in conjunction with the Lawrence Hall of Science at the University of California, Berkeley.

Related material in collection: S00214. Summary comment by: Jerry Luecke, Ralph Oliva, Joe Poyner.

TI number: S00213
Calculator - The TI-1205 was an LED model, without memory, operating from batteries with a charger available.

Summary comment by: Doyle Evans, C.B. Wilson.

TI number: S00213
Calculator - The TI-1205 was an LED model, without memory, operating from batteries with a charger available.

Summary comment by: Doyle Evans, C.B. Wilson.

TI number: S00212
Calculator - The TI-1255 calculator was single memory LED model operating from batteries with a charger available.

Summary comment by: Doyle Evans, C.B. Wilson.

TI number: G00423
Display, Calculator, Liquid Crystal - This is an early calculator display made by TI in the 1971 period. It represents an engineering development and prototyping effort at that time. This display was designed for the dynamic scattering mode. It was not filled with liquid.

Summary comment by: Hector Cardenas, Milo Johnson.

TI number: G00424
Display, Calculator, Liquid Crystal - This item is a prototype dot matrix LCD built in 1977. It was intended for use in advanced calculators requiring the use alpha numeric characters. It functions in the twisted nematic field effect mode.

This LCD was not put into production because of the decision for TI to purchase LCD's instead of manufacturing them.

Summary comment by: Hector Cardenas, Milo Johnson.

TI number: S00405
Calculator - See S00209 for a description of the SR-10. This calculator, serial number SR-108163 was built in the third quarter of 1973 and put in the clear plastic case for display and demonstration.

Related material in collection: S00209, 312. Summary comment by: Doyle Evans, Lee Kitchens, C.B. Wilson.

TI number: Z00408
Calculator - This calculator (S/N 303163) is an early production unit. The Pocketronic was the first portable (hand held) printing calculator commercially available. It was announced in April, 1970; and, based on IC date codes, this unit was probably built in the fourth quarter of 1970.

Canon was licensed under the TI calculator patent, and the calculator was developed as a Joint Canon-TI effort. The IC's, transistors and thermal print head (See G00132) were supplied by TI. The calculator is still in working condition.

Summary comment by: J. Fred Bucy, Jack Kilby.

TI number: G00449
Calculator Assembly, Display and Keyboard - This item illustrates the essential parts of a 1980 calculator without the case. The VLED display consists of twelve LED chips mounted and bonded to the PC board with a clear plastic lens with magnifying bubbles above each chip.

The LED chips were furnished by the SC Group in Dallas and the lens by an Ohio supplier. The circuit board and the IC are from TI Singapore, and the board assembly was by TI Taiwan. The keyboard was made at TI Lubbock and assembled to the board in the Lubbock or Abilene plant.

Summary comment by: Don Cornett.

TI number: G00129
Integrated Circuit - The 'calculator-on-a-chip' was an MOS integrated circuit announced by TI in September, 1971. In addition to its being offered for sale to the industry, a variation was a key element in TI's first portable calculator, the Datamath, introduced in September, 1972.

Item was part of the original S/B Lobby display and was used in the 50th Anniversary exhibit. This special package was used for display purposes. The device offered a complete four-function business calculator with a 3,500 bit read only memory, shift register and sequential address memory. The chip provided the equivalent of some 20,000 transistors. Changing a single photo mask permitted functional variations, including slide rule type calculations as well. Patent No. 4074351 was issued in July, 1971, to Gary Boon and Michael J. Cochran and assigned to TI. For additional information, see the Artifacts Historical Files.

Related material in collection: G00123. Summary comment by: Dave Carlson, Ken Davis, Kevin McDonough.

TI number: S00114
Calculator - The Datamath and two desk calculators were introduced in September, 1972, and were the first TI consumer products. They used the TI "Computer on a Chip" IC for all calculations.

These items were part of the original S/B Lobby display and the 50th Anniversary exhibit. The Datamath had rechargeable batteries and a charger. See the Press Release in the Artifacts Historical Files.

Related material in collection: S00091, 121, 295, G00123. Summary comment by: Chuck Abbott, Dave Carlson, C.B. Wilson.

TI number: S00121
Calculator - The Minimath was the first calculator designed by TI for production. After evaluation of a limited production quantity, it was decided not to place it in production.

See S00091 for information on the Minimath calculator.

Related material in collection: A00091, 114, 295, G00123. Summary comment by: Chuck Abbbott, Dave Carlson, Jack Kilby, Jerry Merryman.

TI number: S00455
Calculator - UNKNOWN

UNKNOWN

Related material in collection: UNKNOWN Summary comment by: UNKNOWN

TI number: S00295
Calculator - The Datamath and two desk calculators were introduced in September, 1972, and were the first TI consumer products. They used the TI "Computer on a chip" IC for all calculations. This example is in a white case which was not the standard color.

Apparently a limited number were initially built in white cases but were never sold. A management decision was made to change the case color. Also, this calculator has a TMS0110NC IC with d/c 7218. The other Datamaths in the collection have TMS0111NC IC's. An AC9100 Adapter/Charger was received with the calculator. The batteries had been removed when received.

Related material in collection: S00091, 114, 121, G00123. Summary comment by: Chuck Abbott, Dave Carlson, Doyle Evans, C.B. Wilson.

TI number: S00296
Display, Calculator, LED - Examples are three LED (light emitting diodes) displays indicating some of the variations used for calculators.

S00296-1 was the lowest cost unit but was the hardest to read because of a narrow viewing angle. S00296-2 & 3 cost more but offered increased viewing angles. S00296-1 has a physical sample keyboard attached.

Summary comment by: Doyle Evans, Billy Fornero, C.B. Wilson.

TI number: S00296
Display, Calculator, LED - Examples are three LED (light emitting diodes) displays indicating some of the variations used for calculators.

S00296-1 was the lowest cost unit but was the hardest to read because of a narrow viewing angle. S00296-2 & 3 cost more but offered increased viewing angles. S00296-1 has a physical sample keyboard attached.

Summary comment by: Doyle Evans, Billy Fornero, C.B. Wilson.

TI number: S00296
Display, Calculator, LED - Examples are three LED (light emitting diodes) displays indicating some of the variations used for calculators.

S00296-1 was the lowest cost unit but was the hardest to read because of a narrow viewing angle. S00296-2 & 3 cost more but offered increased viewing angles. S00296-1 has a physical sample keyboard attached.

Summary comment by: Doyle Evans, Billy Fornero, C.B. Wilson.

TI number: S00297
Calculator - This item is a prototype SR-52 hand held magnetic card programmable calculator in a clear plastic case. IC date codes indicate this calculator probably was built in January or February, 1976.

To check the case design and molds, an initial case was molded in clear plastic and assembled with the calculator assembly. Points of interference of misalignment could then be identified and corrected. A few clear cases were also often used to display the calculators. The SR-52 was introduced in September, 1975, with a price of $395.00. A copy of the press release announcing the calculator and its capabilities is in the Artifacts Historical File.

Summary comment by: Doyle Evans, Billy Fornero, C. B. Wilson.

TI number: S00298
Calculator - This item is an engineering prototype TI 59 hand held programmable calculator in a clear plastic case. IC date codes indicate the calculator was probably built in May, 1977.

To check the case design and molds, an initial case was molded in clear plastic and assembled with the calculator assembly. Points of interference and misalignment then could be identified and corrected. This example has several points of interference which prevent the case being closed. The battery pack and Solid State Software module are not included. The TI Programmable 59 was introduced in May, 1977, with a price of $229.95. For additional information on the capabilities of the TI Programmable 59 and Solid State Software, see press releases in the Artifacts Historical Files.

Summary comment by: Doyle Evans, Billy Fornero, C. B. Wilson.

TI number: S00131
Calculator -