TYPO?

[SlideRule]

An excerpt from PDAs: Revolutionizing The Way We Learn and Teach , Turkish Online Journal of Distance Education-TOJDE April 2006 ISSN 1302-6488 Volume:7 Number:2 Article:14 pages 153-154

TECHNOLOGIES AND INFRASTRUCTURE
PDAs have evolved over the last two decades starting in 1974 with Hewlett Packer’s release of the HP-45 calculator, which could be programmed¹, included a timer², and had removable storage³.
?¹ ?² ?³

BEST!
SlideRule
ps: yes, there is an embedded tyypo, but the Subject: TYPO? refers to ?¹ & ?³!

[KeithB]

Have them change it, we can't have things *wrong* on the internet!
https://xkcd.com/386/

[rprosperi]

Perhaps the 'removable storage' refers to the battery pack. It doesn't say what it stores....

[Namir]

That's no typo!!! He butchered the specs of the HP-45 mixing it with other HP calculator models!!!

Namir

[joseph81]

(06-07-2024 02:10 AM)Namir Wrote:  That's no typo!!! He butchered the specs of the HP-45 mixing it with other HP calculator models!!!

Namir

like someone made a significant mistake in describing or listing the specifications of the HP-45 calculator, possibly confusing it with features from other HP models. The HP-45, released in 1973, was one of the first scientific calculators and had specific features like trigonometric functions, exponential functions, and a unique "hidden" timer feature. Mixing it up with other models like the HP-35 or HP-65, which have different functionalities, could lead to a lot of confusion, especially for enthusiasts or collectors who are particular about these details.

[Namir]

The good news is that the Turkish publication is by no means a popular one. We can all sleep soundly and not worry about a thing!