Old Calculator Museum Advertising & Documentation Archive
Cintra Scientist 911 Ad
Cintra Scientist 911 Ad
Modern Data Magazine
February, 1971
Introductory article for the Cintra 911 Statistician.
The Cintra 911 was a modified version of the
Cintra 909 Scientist
calculator to change the function of a few of the keys to provide
statistical functions. The microcode of the machine was changed to
provide the statistical functions. Other than the code in the microcode
ROMs, and the legends on three of the key caps, the 909 and 911
calculators are identical. The 911 was introduced a couple of
months after the 909, with the delay being the time needed to update
the microcode and perform all the necessary testing to assure that
the new functions always generated correct results.
After Tektronix purchased Cintra in May of 1971, the 911 was re-badged
with the Tektronix name, and sold as the Tektronix 911. While the
Cintra/Tektronix 909 is relatively uncommon today, the 911 is rather
rare, with only a few known articles existing. The Old Calculator
Museum would like to find a 911 for the museum. If you know of
one of these machines, please contact the museum by clicking
the EMail button in the link bar at the top of this page.
