TI-57 Programmable Calculator

 Home > Browse Our Collection > Calculators > Electronic Calculators > TI-57 Programmable Calculator

The TI-57 was a programmable scientific calculator made by Texas Instruments between 1977 and 1982. There were three machines by this name made by TI, the first was the TI-57 with LED display released in September 1977 along the more powerful TI-58 and TI-59. It had 50 program steps and 8 memory registers. Two later versions named TI-57 LCD and TI-57 LCD-II have a LCD display, but were less powerful (ran much slower) and had much less memory: 48 bytes to be allocated between program 'steps' and storage registers.

The TI-57 lacked non-volatile memory, so any programs entered were lost when the calculator was switched off or the battery ran out.

The LED display version of the TI-57 had a rechargeable Nickel-Cadmium battery pack BP7 which contains two AA size batteries and some electronic to raise the voltage to the 9V required by the calculator. A popular modification is to power it from a 9V battery and use the battery cover of a LED TI-30 or a part of the dismantled battery pack. This modification provides a better battery life than the original battery pack.

Radio Shack also marketed this calculator, which was rebranded as the EC-4000.
Number of keys 40
Number of digits on display 8 1/2 + 2 1/2
Microprocessor TI TMC1501NL
Size (length x width x thickness) 145x80x33
Made in Italy, USA

Further details can be found at http://mycalcdb.free.fr/main.php?l=0&id=1771

We are extremely grateful to Peter Brigginshaw for this donation. Peter made the following comments on the use of this TI-57:

"I worked at The GEC Research Laboratories (later Hirst Research Centre) from 1953 until 1992; the labs were demolished in 1994. During the late seventies I believe I was working on the integration of high frequency microwave (radar) circuitry. The TI 57 was a handy tool for general calculations because it was programmable - we had a couple of real mathematicians in our lab! The calculator of course had a relative short working life because of facility and speed improvements in later models. However this TI 57 survived even the 1994 demolition."

Manufacturer: Texas Instruments
Date: May 1977

Other Systems Related To TI-57 Programmable Calculator:

Item Manufacturer Date
TI Europa 10 Texas Instruments Unknown
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-56 Programmable Calculator Texas Instruments May 1976
TI-1650 Programmable Calculator Texas Instruments 1977
TI-58 Programmable Calculator Texas Instruments 1977
TI-30 Scientific Calculator Texas Instruments January 1977
Texas Instruments TI-59 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 TI-2550-IV Arithmetic Calculator Texas Instruments 1978
Casio fx-140 calculator Texas Instruments 1978
TI-58C Programmable Calculator Texas Instruments 1979
TI-35 Scientific Calculator Texas Instruments 1979
TI LCD Programmer 1981 Texas Instruments 1982
Little Professor 26-82-RC1 Texas Instruments 1985
TI-74 Basicalc Texas Instruments 1985
TI-5038 Paper Free Printer Texas Instruments 1988
TI-81 Programmable Calculator 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 CH17322. Please quote this reference ID in any communication with the Centre for Computing History.


TI-57 Programmable Calculator

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