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HP preps 30th anniversary 12c calculator

updated 01:35 pm EDT, Thu September 1, 2011

Limited Edition model honors 30 years on market

HP is celebrating the 30th anniversary of the launch of its iconic 12c calculator with a special Limited Edition model. The 12c was known for its then unusual landscape footprint and its use of Reverse Polish Notation (RPN) data entry. HP is also issuing a limited edition version of its 15c calculator.

The handheld 12c was introduced by HP in 1981. It sported a horizontal rather than vertical orientation, unusually long decimal place calculation and display capability, and RPN, a way of inputting data whereby the operative sign was first input followed by the number. The 12c became very popular in the financial community for its precision and speed of entering data. The company still sells the same calculator today. Each anniversary calculator has a special commemorative faceplate on the front, and a unique laser-etched production number on the back.

HP has also introduced a limited edition of its 15c Scientific Calculator, which it began selling in 1982. The 15c became a popular tool for scientists and engineers. Also featuring RPN entry, the 15c was programmable and offered built in support for complex numbers, matrix math, numeric integration and root solving. The 15c was discontinued in 1989, but it has lived on as a virtual computer and mobile app. For a limited time, HP is making the 15c available with its same physical design, but with 100 times faster processing speed than the original version.

The 12c 30th Anniversary Calculator is priced at $80 and is available now.

The 15c will be priced at $10 and should be available sometime this month.

by MacNN Staff




  1. testudo

    Joined: Dec 1969



    I still have a 15c, it still works.

  1. gerards800

    Joined: Dec 1969


    great news

    I have a 11C, stil working. But the newer 33s is absolutely rubbish. I think that HP has lost its interest in making good calculators. Thus I fear the worst for the company (being a first our admirer.
    At the site op HP I don't see a clou.

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