Texas Instruments TI-59

 Home > Browse Our Collection > Calculators > Electronic Calculators > Texas Instruments TI-59

The Texas Instruments TI-59 is an early programmable calculator released in May 1977. It is the successor to the TI SR-52 with four times the number of program steps. The TI-59 was a more advanced version of the TI-58, both of which were released in May 1977. The TI-59 retailed at £249.95 compared to £99.95 for the TI-58.

They both contained new technology trademarked by Texas Instruments as Solid State Software, providing you with complete, pre-written problem solving libraries in ROM plug-in modules. They had up to 5000 program steps each, and just required the user to enter the variables. The Master Library module, which came with the calculator, contained 25 useful programmes. On the TI-59 you were also able to key in your own programmes and store the data, using up to 960 programme steps or up to 100 memories, and use the Master Library programmes as subroutines. Optional plug-in modules were available to convert your calculator into a specialised problem solver in areas such as applied statistics, surveying, aviation and navigation.

The TI-59 could also store data and programs on small cards that were read by a built-in magnetic card reader. The calculator came with a number of these cards that were pre-programmed with functions such as volume, weight and temperature conversion as well as a random number generator and more complex mathematical functions. Blank cards were also included for the user to program.

The calculator had a 10-digit LED display. It could be powered from an internal battery pack or mains supply.

There was a thermal printer/security unit, the PC-100A, which could be used to print, list or trace program steps as an aid to debugging that was available for use with the TI-59. The calculator sat on the cradle and could be locked in place with a key. The printer unit also functioned as a charging unit, and had a lockable battery compartment where you could store/charge the battery unit.

Our calculator is complete with box, manual, mains power supply, Business Decisions module, and program cards.

Manufacturer: Texas Instruments
Date: May 1977

Other Systems Related To Texas Instruments TI-59:

Item Manufacturer Date
TI-2500 Datamath Calculator Texas Instruments 1972
TI SR-10 Electronic Sliderule Texas Instruments 1973
TI SR-10 Electronic Sliderule Texas Instruments 1973
TI-SR-50 Scientific Pocket Calculator Texas Instruments 1973
TI-2550 Memory Calculator (1st Design) Texas Instruments 1974
TI-2500 B Datamath calculator Texas Instruments 1974
TI-2550 II Texas Instruments 1975
TI-SR-51A Version 1 Texas Instruments June 1975
TI-SR-51-II. Advanced professional electronic calculator Texas Instruments 1976
TI SR-56 Programmable Calculator Texas Instruments May 1976
TI-30 Scientific Calculator Texas Instruments 1977
TI-1650 Programmable Calculator Texas Instruments 1977
TI-58 Programmable Calculator Texas Instruments 1977
TI-57 Programmable Calculator Texas Instruments May 1977
TI-42 MBA Electronic Calculator Texas Instruments August 1977
TI-45 Scientific Calculator Texas Instruments 1978
TI-33 Electronic Calculator Texas Instruments 1978
TI 2550-IV Arithmetic Calculator Texas Instruments 1978
Casio fx-140 calculator Texas Instruments 1978
TI Little Professor (Boxed) Texas Instruments 1978
TI-58C Programmable Calculator Texas Instruments 1979
TI-35 Scientific Calculator Texas Instruments 1979
TI Math Marvel Calculator Texas Instruments 1980
TI LCD Programmer 1981 Texas Instruments 1982
Little Professor 26-82-RC1 Texas Instruments 1985
TI-74 Basicalc Texas Instruments 1986
TI-5038 Paper-Free Printer Texas Instruments 1988
TI-81 Calculator Texas Instruments 1990
TI Europa 10 Texas Instruments 1990
TI-92 Graphing Calculator Texas Instruments 1995
TI-Nspire Graphing Calculator Texas Instruments July 2008

This exhibit has a reference ID of CH6045. Please quote this reference ID in any communication with the Centre for Computing History.


Texas Instruments TI-59

Click on the Image(s) For Detail

Help support the museum by buying from the museum shop

View all items

Founding Sponsors
redgate Google ARM Real VNC Microsoft Research
Heritage Lottery Funded
Heritage Lottery Fund
Accredited Museum