This announcement article from the December, 1965 New Products
section of the periodical Computers & Automation gives a clue
about the production lead time for this publication, since the
Programma 101 was actually introduced in October. It is surprising that
so little is said about the machine, especially given that it was rather
revolutionary in the electronic calculator field, with features that wouldn't
be matched until the 1968 introduction of the Hewlett Packard 9100
calculator.