![Richard Troupe on Twitter: "Some gaming obscura today... Gaming on a calculator?! Yes! The Texas Instruments series of early scientific calculators are extremely versatile due to their in-built programming functions and Z80 Richard Troupe on Twitter: "Some gaming obscura today... Gaming on a calculator?! Yes! The Texas Instruments series of early scientific calculators are extremely versatile due to their in-built programming functions and Z80](https://pbs.twimg.com/media/FT6psdlWQAAiJM6.jpg:large)
Richard Troupe on Twitter: "Some gaming obscura today... Gaming on a calculator?! Yes! The Texas Instruments series of early scientific calculators are extremely versatile due to their in-built programming functions and Z80
![Texas Instruments TI81 Calculator Emulation : Texas Instruments and MAME Team : Free Borrow & Streaming : Internet Archive Texas Instruments TI81 Calculator Emulation : Texas Instruments and MAME Team : Free Borrow & Streaming : Internet Archive](https://archive.org/serve/ti81-calculator/calculator.png)
Texas Instruments TI81 Calculator Emulation : Texas Instruments and MAME Team : Free Borrow & Streaming : Internet Archive
![Lord Arse! en Twitter: "DOOM... on a TI-83 calculator. (credit: @lazygamereviews) https://t.co/91duY4uyTy" / Twitter Lord Arse! en Twitter: "DOOM... on a TI-83 calculator. (credit: @lazygamereviews) https://t.co/91duY4uyTy" / Twitter](https://pbs.twimg.com/media/FCNODv2WYAAAnQX.jpg)