Portable computers!!!

Selling my own collection acquired for decades, only made of perfectly working calculators and in great cosmetic condition.

Have a look to my other HP calculators and items coming for sale!

I am happy to propose this HP-71B for sale that represents for me, with the HP-41Cx, the best proposed by Hewlett-Packard at this time. On top of that, this one has the very coveted embedded card reader module.

History

“The HP-71 was a small handheld computer/calculator featuring both QWERTY and calculator/numeric keypads. It was the first handheld to implement the (then proposed) IEEE floating point math standard which included such concepts as infinities and non-numbers.

Like the HP-75C, expressions could be entered in the BASIC environment for immediate evaluation. However, the HP-71B also provided a calculator mode. HP decided that an RPN calculator was inappropriate for a BASIC computer, but algebraic calculators hid too much of the mathematical process. For the HP-71B, HP provided an "operator-precedence parser with value substitution" system. This system took algebraic expressions but evaluated them as they were entered rather than waiting for a final "=" key.

In addition, the calculator mode had implied results. Wherever the user wanted to include the previous result in a new expression, an empty set of parentheses was typed. As the closing parenthesis was entered, the previous result immediately appeared between the parentheses. Finally, though it was algebraic, it had an input stack. The cursor up/down keys could be used to retrieve previous stacked expressions.

Like the HP-85 the HP-71B provided a real time clock and timers with BASIC language support allowing it to be used as a small portable device controller. The language included subroutine calls to BASIC or assembly language with parameter passing and recursion.

In addition to the QWERTY style keyboard of the HP-75C/D the HP-71B provided a numeric/calculator keypad and provided typing aids for many keywords. (For example, to enter "IF THEN ELSE", the user could press and hold the "f" shift key and press Q W E.) Every key on the keyboard (except the shift keys themselves) could be redefined by the user.

The HP-71B had a full set of file management commands such as COPY, CATalog, and RENAME. Plug in RAM modules could either be merged with system memory (the default) or kept as separate spaces with their own private file systems.

The file system also allowed secure and private files. Secure files were protected from accidental deletion or modification. Private files could not be modified or copied. The file security extended not only to normal file system commands but even to the BASIC keywords PEEK and POKE which, except for security, could view or alter any part of memory.”

Specifications

·                Model                                                   HP-71B,

·                Code name                                                Titan,

·                OS version                                            1BBBB,

·                Production period                             1984-1989,

·                Introduction price                                      $525,

·                Made in                                     U.S.A. in 1985,

·                Serial number                               2528A00274.

Condition

The HP-71B presented in this auction is in excellent cosmetic and working condition. I tested the working condition by running a simple basic program (the Print “hello world” classic one) and listing the content of a magnetic card:

CAT CARD

It required me to align and pull the magnetic card and I was able to see the content of the magnetic card (see picture). I used 4 regular AAA 1.2v rechargeable batteries to proceed.

Ö               Rubber feet are in perfect condition showing minor wear,

Ö               battery door is in perfect condition,

Ö               battery compartment is corrosion free,

Ö               battery terminals are complete and in very good condition (see picture),

Ö               A/C connector is corrosion free and in perfect condition,

Ö               no repeating or sticky key,

Ö               no missing display dot or indicator,

Ö               no ding and no engraving.

What is included

Ö               The HP-71B portable computer in excellent cosmetic and working condition.

Ö               The battery compartment/door where you can place a set of 4 fresh new AAA 1.5v alkaline batteries.

Ö               The original Owner’s Manual part number 00071-90001 Revision E printed in U.S.A. in March 1987 in fair condition for the front cover and first 4 pages and in excellent condition for the remaining of the Owner’s Manual.

Ö               The original Reference Manual part number 00071-90010 first edition printed in U.S.A. in October 1987 in very good condition only as the front and back cover are a little bit yellowed.

IT IS A COLLECTOR ITEM needing a good home and a showcase, due to its age, I would recommend not using it on a day-to-day basis to preserve it from the years.

Please bid only if:

§  You are really interested in the items proposed,

§  your feedback is at least 50,

§  you are able to complete the transaction according to the following Communication, Payment, Shipping & Handling and Warranty terms.

In all other cases, please contact me before bidding to receive my approval.

I just want people receiving my collectibles enjoy them the same way I enjoyed collecting them; for that reason, I am considering that we have a communication obligation to each other during all the transaction process.

Only Paypal or bank transfer accepted, no exceptions.

Payment is expected within 24h after the end of the auction. If you are not able to pay within this delay, at least, send me a message in order we decide how to proceed.

Combined shipping is organized within 48h after the end of the auction to France, European Union & worldwide. Contact me if you want to delay the shipping or if shipping cost for your country is not mentioned in auction.

Colissimo & Mondial Relay preferred. Shipping cost is adjusted as soon as the parcel is on the way considering carrier, option and packaging retained.

Ø   For Mondial Relay, do not forget to mention your phone number in your contact details as it is required for parcel follow-up.

I guarantee the items of the current auction to be in the condition as described; however, due to the age of the item, I cannot provide any warranty terms.

Items will be sold AS IS, all sales are final, no return and no refund.