Here is a device that can convert any number to its binary form and can also convert a binary number to the original number or 'decimal number'. I know there won't be much use of it but.... still. Nevertheless, hope you enjoy! Instructions: Press the numbers on the calculator to enter a digit. Click on AC (all clear) to delete all Click on DEL to delete the last digit typed in Click on convert to convert the number into its binary form. Press space to change background Press the settings button to change the conversion type (it may be decimal to binary or binary to decimal).