TI-74 Basicalc

The Texas Instruments TI-74 Basicalc is a programmable calculator, which was released in 1985 to replace the Texas Instruments Compact Computer 40. One variant, the TI-74S, has a blank faceplate instead of secondary functions to allow for customization (otherwise it is the same as the 74). Both models accepted customized ROM-modules. The TI-95, released at the same time, was a keystroke programmable descendant of the TI-59 and TI-66, with the same general form factor, but a two-line display (the second line was for function key definitions).

Technical specifications

Date of introduction: 1986
Display technology: LCD dot matrix
New price: $135.00 (SRP 1988)  DM 348.00
Display size: 31 (10 + 3)
Size: 3.8" x 8.0" x 1.0"  96 x 204 x 25 mm3  
Weight: 10.3 ounces, 290 grams
Batteries: 4xAAA
Date of manufacture: mth 06 year 1987
CPU: TMC70009
ROM: HN61256
RAM: HM6264 8 KB 24 characters per line

 

This unit together with hard case and manual was very kindly donated by Douglas Muir

 

 

Manufacturer: Texas Instruments
Date: 1986

Other Systems Related To TI-74 Basicalc:

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-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-30 Scientific Calculator Texas Instruments January 1977
Texas Instruments TI-59 Texas Instruments 24th 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-58 Programmable Calculator Texas Instruments 1979
TI LCD Programmer 1981 Texas Instruments 1982
Little Professor 26-82-RC1 Texas Instruments 1985
TI-5038 Paper Free Printer Texas Instruments 1988
TI-92 Graphing Calculator Texas Instruments 1995
TI-Nspire Graphing Calculator Texas Instruments July 2008

This exhibit has a reference ID of CH19472. Please quote this reference ID in any communication with the Centre for Computing History.

 

TI-74 Basicalc


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