I was bored and found a HP-27S

[Didier Lachieze]

(06-10-2014 05:55 AM)walter b Wrote:  

(06-10-2014 04:39 AM)John R Wrote:  The 27S definitely seems like a hybrid of the 17B and 42S, with maybe 60% of its DNA from the former and 40% from the latter. Which means its numerical designation is particularly fitting, since (0.6 * 17) + (0.4 * 42) = 27.

AFAIK the 27S came before the 17B. But it was a nice theory ...

Well, they were both introduced in January 1988 at the Winter Consumer Electronic Show, along with the 19BII and the 28S. (but the 42S was introduced after the 27S, on October 31, 1988).

Extract from the HP Press Release:

Quote:FOUR NEW HP CALCULATORS EXPAND PRODUCT OFFERING

Hewlett-Packard Company is using the newest automated-production techniques to carve out a successful position for itself in the consumer-electronic market, long dominated by the Japanese.

It's latest offerings in the highly competitive calculator industry--four new handheld models--will be introduced in Las Vegas beginning on Jan. 7.

The new products include:
o HP-19B Business Consultant II;
o HP-17B business calculator;
o HP-28S advanced scientific calculator; and
o HP-27S scientific calculator.
[...]