CASIO fx-4000P scientific calculator from 1986

[ijabbott]

(07-29-2018 07:07 PM)badaze Wrote:  In my opinion it is far better than the 602P it replaced. Fortunately the 4000P is affordable (unlike the 602P) and easy to find. I bought several for a few € at flea markets even boxed.

The main thing lacking compared to the 602P is the ability to connect to an external cassette tape interface for loading/saving programs, or playing tunes. ("I'm the operator on my pocket calculator.")

Quote:It is rare to get a non working one - the last I bought at a charity store - but its weakness resides in the front bezel that often detach.

They seem readily available on eBay, including some listings with the operations manual. I may get one for nostalgia's sake. (I had a 502P back in the day.)