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+--- Thread: Retro Review: HP 20S and HP 21S (/thread-8133.html)
Retro Review: HP 20S and HP 21S - Eddie W. Shore - 04-08-2017 12:15 AM
Spoiler alert: they are awesome. I wish HP kept producing these two models.
http://edspi31415.blogspot.com/2017/04/retro-review-hewlett-packard-hp-20s-and.html
RE: Retro Review: HP 20S and HP 21S - nsg - 04-08-2017 12:26 AM
Just these two? Don't you wish HP kept producing some other awesome models?
RE: Retro Review: HP 20S and HP 21S - Dan B - 04-08-2017 01:04 AM
I have one of each model in excellent condition and they are great! I keep thinking I should sell them since I'm a RPN guy, but I bought them because I can't resist that form factor and key layout!
RE: Retro Review: HP 20S and HP 21S - Gene - 04-08-2017 01:33 AM
I believe a user can key in the time value of money program from the 21S into the 20s and it will work as-is.
As you mention, you just cannot save it into permanent memory. Only the "continuous memory" in the machine.
RE: Retro Review: HP 20S and HP 21S - Eddie W. Shore - 04-08-2017 01:34 AM
(04-08-2017 12:26 AM)nsg Wrote: Just these two? Don't you wish HP kept producing some other awesome models?
Not just. The 48 G+, in 48 SX colors comes to mind. Also, 42S, 15C, 11C, and 41C.