Most common calculators in the forum?

[larthurl]

(12-01-2017 11:10 AM)EdS2 Wrote:  This poll needs more Sinclairs... here's what I've got, working, not working, and not even a calculator:

Sinclair Scientific (working)
Sinclair Scientific (eviscerated)
Sinclair Cambridge Type 2 (eviscerated)
Sinclair Cambridge Type 3

Commodore PR-100 (programmable)
Commodore SR7949 (scientific, 12 digits displaying only 5+2) (eviscerated)

Texas TI-57 Programmable (eviscerated)

HP-15C Limited Edition
HP 35s
HP 30b

Casio fx-115s (just £2)
Casio fx-82ms (also a bargain, a modern high school choice)
Casio sl-300 (solar, very basic, square root, percent, memory)

Sharp Scientific from the 70s with some kind of solver
Sharp EL-506P scientific, statistical, number bases
Sharp EL-9300 graphical, programmable, statistical

Also the kit emulations (hardware and porting by Chris Chung, original software by Eric Smith):
NP-25
MSP-430 - TI Datamath 2500 and Sinclair Scientific

Mechanical:
Odhner (a bit broken)
Contex sterling adder (a bit broken)
3 slide rules, two at 6" and one at 12"
Magic Brain
Abacus (two)

A few no-name trivial calculators:
Solar-only with memory, square root, percent
Solar-powered credit card sized
Two with square root, percent, and memory (probably the most-used calculators)
A no-name calculator watch

A couple of personal organisers with calculator function:
Sharp EL-6320 Memo Master Alarm
Aurodis DM320 Organiseur Personnel

And, not calculators, but well-loved, handheld, battery powered, and capable of calculation (spreadsheets, OPL programming):
Psion 3a (512kB)
Psion 3a (1MB)
Psion 3mx (2MB)
Palm IIIx

And what do I use? Usually Google and sometimes awk. Rarely a calculator.

Ha! Interesting comment.
In the list of my collection, I failed to mention the two Sinclair 4 bangers that Sinclair gave me in 1975 and which I used (after modding the keyboards) in my first Master's degree comparing calculator keyboard arrangements (calculator vs. phone). Pushbutton phones were relatively new at the time (so were calculators) and I was interested in seeing if there were any significant differences. I still have the apparatus I built - let me take a pic and see if I can upload it. Warning - it's pretty crude