Count on old-school fun with these new calculator emulations | Ars Technica
Scientific Calculator using AVR Microcontroller - Projects Tutorials Code Library for Atmels Atmega32 AVR
Speaking Calculator using AVR ATmega88 microcontroller - Projects Tutorials Code Library for Atmels Atmega32 AVR
Texas Instruments SR-50 Simulator - scientific601
TI-83 Plus Graphing Calculator | Texas Instruments
TI-83 Plus Graphing Calculator | Texas Instruments
Amazon.com : Pocket Basic Science Calculator for Students - Foldable Math Classroom Functional Calculator with LCD Display Erasable Writing Tablet and Ruler Set for Office Home Business Whether Back to School Gift :
Calculate Like It's 1989 With This HP15C Emulator | Hackaday