hi,
may i know what type of module should i create, if i want to store phone number and password using 8051?
my system now need user to key in password and their phone number in order to activate the rest of the system. everytime the user want the system to do something the system will check the password. however if I write the password to variable , once it's power off the data will be gone.
So I think i may need another module to save the password. may i know where to find more information?