Igor Feher
C/C++ and many other languages, Production Engineer, Biosignal research and their DSP processing

Collection Calculators Accessories

Quick facts:

  • Count: 7 graphing calculators (7 distinct models) View collection picture
  • Total weight: ≈ 2 kg / 4.4 lbs.
  • By series: 3x TI (1x Z80, 1x 68k, 1x Nspire), 2x Casio (1x Other, 1x SH4), 2x HP
  • Oldest calculator: a TI-86 manufactured in August 1997
  • Newest calculator: a TI-Nspire CX II-T CAS manufactured in September 2022
  • Achievements:
    • Total earned: 4 achievements

Model Factory Datecode HW Rev. Serial number Software version(s) Physical condition Extras Acquisition date Pic Comment
Worn Box, Manual(s) 1995 Box is in bad shape, but manual is good. Have several small programs wrote on paper notes.
777AW45MA072646 Always updated to latest Good 2014 Bought new from Germany.
I 0897 D 04200787 ROM 1.4 Fair 2015 Gift, used.
I 0804 F 1304002289 3.10, 07/18/2005 Good 2016 Got used from eBay, has name and last name of the original owner engraved on the back side of the unit.
HW 2.00
N 0922 AP 3A26505370 Always updated to latest New Box, Manual(s) 2023-11-07 Purchased new from Amazon, Europe
CNA34414HS 2.15 Good 2023-12-08 Second hand, came with SD card and old backup button battery, no leaks, no scratches, screen still has protective foil, no scratches.
9CJ316024P Always updated to latest New 2023-12-20 Purchased new from Amazon, Europe