![Jo Morgan on Twitter: "Calculator for cheating in exams. Works as a calculator but can also send messages, access the internet etc. Even has a panic button! Top sticker can be peeled Jo Morgan on Twitter: "Calculator for cheating in exams. Works as a calculator but can also send messages, access the internet etc. Even has a panic button! Top sticker can be peeled](https://pbs.twimg.com/media/D2b07w8XgAE9PZu.jpg)
Jo Morgan on Twitter: "Calculator for cheating in exams. Works as a calculator but can also send messages, access the internet etc. Even has a panic button! Top sticker can be peeled
George Stagg on Twitter: "I'm currently suffering with Covid-19. In "celebration", here is a twitter thread describing my Covid lockdown project: hacking a Casio CFX-9850G calculator, from 1996 with 32KB of RAM
![John Nelson on Twitter: "I lent my calculator to one of my #IB students and this is what it looked like when it was returned #mathchat http://t.co/37dzkP2C" / Twitter John Nelson on Twitter: "I lent my calculator to one of my #IB students and this is what it looked like when it was returned #mathchat http://t.co/37dzkP2C" / Twitter](https://pbs.twimg.com/media/A4dieONCEAIC_hW.jpg)