TI-74
The Texas Instruments TI-74 Basicalc is a type of 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
- TMS70C46 CPU[1] (C70009, another chip from TMS 7000 family also reported)[2]
- 31 5×7 character LCD
- 32+4 KB ROM
- 8 KB RAM
- RAM/ROM memory expansion port
- Hexbus port
- 80 characters per line (31 visible)
- port for power supply
- powered by 4 AAA-size batteries
References
- ↑ TI-74 BASICALC Technical Manual (PDF). Texas Instruments. 1987.
- ↑ "DATAMATH CALCULATOR MUSEUM". Retrieved 22 December 2013.
External links
- TI-74 on MyCalcDB (database about 1970s and 1980s pocket calculators)
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