Introduction
Quite possibly, it was my encounter with a Texas Instruments SR-52 calculator in 1975 or thereabouts at a Budapest repair shop that played the critical role in my later choice of computer programming for a career. I have owned a programmable calculator since I was sixteen (when I spent an entire summer's worth of student income to acquire one.) Recently, however, I began to buy programmable calculators of all kinds, building a proud little collection. I also have great fun repairing vintage calculators, recelling their rechargeable batteries, reconditioning failing magnetic card readers, and fixing many electronic problems.
Little did I know when I started this hobby, that in a few short years, I'll have over three hundred programmable handheld calculators, pocket computers, and similar devices in this collection.
To view the collection, please use the navigation links on the left, or click on any of the links below. Or, proceed directly to the Exhibit Hall.
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Notable Pages
Where Can I Get a Manual, and other Frequently
Asked Questions
- A unique prototype: the TI-88
- Another rare prototype: the HP Xpander
- Yet another unique machine: the Al-Hassibah 2000
- A notable "war story": the HP-91
- The Most Primitive Programmable award goes to: the Litronix-2290
- The first Russian programmable is not a copycat machine: the B3-21
- Made in Hungary, or the story of my first programmable calculator: the PTK-1072
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