TI-74

The Texas Instruments TI-74 Basicalc is a type of programmable calculator, which was released in 1985 to replace the CC40. 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

*31 5x7 character LCD
*32+4 KB ROM
*8 KB RAM
*RAM/ROM memory expansion port
*hexbus port
*24 characters per line
*port for power supply
*place for 4 micro batteries

External links

* [http://mycalcdb.free.fr/main.php?l=0&id=1824 TI-74] on [http://mycalcdb.free.fr MyCalcDB] (database about 70's and 80's pocket calculators)