TI1250 4function with memory, red LEDs.

Rockwell 64RD scientific calculator with blue flourescent display. Consumes AA cells hungrily.

TI55 pair of TI55 calculators. These can store a program and then do complex calculations based on variables you enter, much like a home computer can be programmed to do math.

TI Programmer the hackers' calculator. This unit performs logical and mathematical operation on decimal, octal, and hex numbers.

TI30 The TI30 has enough math for most of us to get by with for everyday fun, and also allows a program to be stored and then run.

TI59 This calculator not only stores programs, but allows them to be saved on small magnetic cards the unit reads into memory. It also has a special memory module with additional programs that can be inserted into the unit for more functionality. This one is for the experts.

TI59
