Arithmetic Calculator that can process multiple operands and operators at the same time

[mrburnette]

From the early history of Arduino ...

Don't Cross The Streams (FP scientific calculator serial co-processor)

OK, I'm sorry about the title, but I'll blame it on too much coffee, the real, non-decaf stuff. Most probably think of a co-processor as one of those math chips like the 8087 that were plugged into the IBM PC and clones back in the dark ages. They essentially allowed coprocessor-aware software such as Lotus 1-2-3 to calculate faster because software-only calculations were soooo slow. But, essentially a co-processor can be any processor that is programmed for a somewhat dedicated fu…

May give you a few ideas about parsing the keyboard and configuring the system to be expandable.