Retro- [L. retro, adv., backward, back. Cf. Re-.] A prefix or combining form signifying backward, back; as, retroact, to act backward; retrospect, a looking back. [1913 Webster]

cal·cu·la·tor n 1: a small machine that is used for mathematical calculations [syn: calculating machine]

Old Machines
HP-41C
HP-41C
RPL Machines
RPL Machines
HP-71B
HP-71B
HP-9816
HP-9816
More Old Stuff
Old Documents
Old Documents
Old Networks
Old Networks
Old Disks
Old Disks

This site

  • Home Page
  • HP-71B
  • RPL Machines
  • Old Documents
  • Old Software

Elsewhere

  • Museum of HP Calculators
  • HP Computer Museum
  • HP41.org
  • Old HP and TI Calculators
  • HPCC, HP Handheld Club
  • HPCalc.org

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