the worst?

[Dave Britten]

Oh boy, this will be a spicy thread...

In the HP realm, the 35S is high on my least-liked list, because it's so full of bugs. The 28C is a fine system, but it has so little RAM that you can't really do much of anything useful with it.

And I know there are some folks that aren't keen on the HP 55, but I actually really like it. I've got a 55 on my desk that's my go-to for quick calculations because it has a robust set of built-in functions and features, and a nice bright LED display. It's not terribly powerful for programming, but it's capable enough that I'll punch in a short program from time to time if I need to do something repetitive.

The Litronix 2290 might as well not even be programmable it's so utterly useless at it.

The Sinclair Programmable is also pretty awful (both to use and program), but interestingly enough, it came with a really great program library booklet. The Sinclair Cambridge Programmable is considerably better overall, but still not an enjoyable experience. But again, it too had an outstanding set of program books.