HP-75 Designations?

[Sylvain Cote]

The only difference between the HP-75C and the HP-75D is the wand port.

HP also introduced the Bar Code module and two wand version for the HP-75D.
Later on, HP introduced the POD who had some of the bar code module logic.
HP-75D inventory system often had: HP-75D in the POD with a wand.

Code:

Model            Description                           Introduction USD Price : Year
75C              Handheld Computer   (16KB RAM, HP-IL, Card Reader)   $995.00 : 1982
75D              Handheld Computer   (75C + Wand Port)               $1095.00 : 1984
82700A           8KB RAM Module                                       $195.00 : 1983
82725A           Bar Code Module     (75D only)                        $75.00 : 1984
92267A           Hi-Resolution Wand  (75D only)                       $160.00 : 1984
92267B           Med-Resolution Wand (75D only)                       $150.00 : 1984
82718A opt. 032  Expansion Pod       (300 Baud Modem + 32KB E.Disk)   $875.00 : 1984
82718A opt. 064  Expansion Pod       (300 Baud Modem + 64KB E.Disk)  $1175.00 : 1984