Personal Collection

This "Theme Page" has links to two types of resources related to the study of History of Computers/Internet. Students and teachers will find curricular resources (information, content...) to help them learn about this topic. In addition, there are also links to instructional materials (lesson plans) which will help teachers provide instruction in this theme.

This web site is dedicated to collecting, restoring and simply playing with old (A.K.A. vintage, classic, antique, outdated or just plain junk) computers. Like many in the computer age, I cut my teeth on computer systems that represent the dawn of the computer revolution. Some of these systems, such as the Altair 8800, Apple ][ and IBM PC have tons of historical significance. Others, such as the Atari 800, Osborne 1, Kaypro 2x and Dec Pro 350 have less historical but more personal significance (at least to me). All of these systems do, however, have one thing in common. They all take up some room in my home and often get time on the workbench to strut their stuff.

Here you will find a wealth of data I have collected over the years on HPs, on TIs and on my all time favorite mechanical calculator, the CURTA. My favorite calculators are HPs but I don't plan on this page even starting to compete with "The Museum"! Look around, enjoy yourself, and marvel over how these little silicon devices changed the world.

Dutch for Historical Calculating Instruments

Collection of slide rules and other historical computing artifacts.

From this website you can download instruction manuals and patents of many calculators and slide rules of the past.

Collection of various historical links

Collection of Curt Herstark

Personal archive

On-line computer museum since 1995