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KermMartian

Christopher Mitchell — USA
Cemetech founder
 •  3-year club
This profile has not been created by its owner, it is managed by MyCalcs using data from an existing external source (spreadsheet, CSV, website...)

Collection Calculators Accessories

Quick facts:

  • Count: 163 graphing calculators (35 distinct models), 5 of which are prototypes (4 distinct models) View collection picture
  • Total weight: ≈ 43 kg / 95 lbs.
  • By series: 147x TI (125x Z80, 9x Nspire, 7x 68k, 6x eZ80), 13x Casio (6x Hitachi, 5x SH4, 2x SH3), 1x HP, 2x Zero
  • Oldest calculator: a TI-81 manufactured in May 1992
  • Newest calculator: a TI-Nspire CX II manufactured in November 2018
  • Achievements:
    • Total earned: 28 achievements (2 feats of strength and 1 secret achievement)