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Vintage 1988 HP 28S Advanced Scientific Calculator RPN Programmable Made in USA!
US $94,95
Ca.CHF 75,53
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Artikelzustand:
“Tested and fully functional. Display is clear and responsive. Keys show light cosmetic wear ”... Mehr erfahrenÜber den Artikelzustand
- Sofort-KaufenVintage 1988 HP 28S Advanced Scientific Calculator RPN Programmable Made in USA!
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Versand:
Kostenlos UPS Ground Saver.
Standort: Gardner, Kansas, USA
Lieferung:
Lieferung zwischen Fr, 31. Okt und Mi, 5. Nov nach 94104 bei heutigem Zahlungseingang
Rücknahme:
30 Tage Rückgabe. Käufer zahlt Rückversand. Wenn Sie ein eBay-Versandetikett verwenden, werden die Kosten dafür von Ihrer Rückerstattung abgezogen.
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eBay-Artikelnr.:167861441232
Artikelmerkmale
- Artikelzustand
- Gebraucht
- Hinweise des Verkäufers
- Model year
- 1988
- RPN Logic
- Yes
- Power Source
- Battery (3 × N-cell)
- Color
- Dark Gray / Silver
- MPN
- HP-28S
- Vintage
- Yes
- Programmable
- Yes
- RPN Capable
- Yes
- Form Factor
- Clamshell design
- Made in USA
- Yes
- Display Type
- LCD (Multi-line)
- Algebraic Entry
- Supported
- Graphing Capable
- Yes
- Data Communication
- Infrared (IR port)
- Country of Origin
- United States
- UPC
- 0088698000106
Über dieses Produkt
Product Information
The HP-28 is a series of scientific calculators introduced by Hewlett-Packard in the late 1980s. The first model was the HP-28C. It was released in 1987 and had only two kilobytes of RAM or random access memory. A year later, HP released the HP-28S model, the second and last in this particular line. This was a more advanced scientific calculator and had a capacity of 32 kilobytes of RAM. These were among the first scientific graphing calculators, which means that they had the capacity to solve calculations graphically. The HP-28S became the more common and popular calculator of the two. It is a lightweight handheld scientific and graphing calculator that weighs in at a mere 7.2 oz. It is pocket sized and offers just the right balance between power and ease of use. It has a simpler menu structure yet still provides multiple programming options. The display is 137 x 32 pixels with a dot matrix, monochrome LCD. This allows for four lines of data to be displayed on the screen. The calculator provides direct entry for algebraic formulas and an RPN input logic for interactive calculations. The information is displayed in a dynamic way with infinite stack viewing. This calculator performs a number of specific functions. You can perform algebraic manipulation, which means symbolically solving equations for any variable. You can do calculus, calculating derivatives, and definite and indefinite integrals. You can also solve math linear equations and perform binary bit manipulations. Users can calculate single and paired-sample statistics and probabilities and plot them on a graph. Finally, you can make unit conversions using any of the 120 built-in unit combinations.The 28S uses a regular battery, so you don't have to invest in special batteries. It has a protective clamshell case that flips open and comes in a variety of colors. The left side of the cover features a QWERTY alphabetic keyboard, while the right side features a regular scientific calculator keyboard. The unit has a regular key size. The power comes from a custom chip containing an improved Saturn processor core that runs at 1MHz. This new mini processor was so special that it was given a codename of Lewis. Each style of processor had a particular name taken from the Lewis and Clark expedition. Each provided something innovative, and this one provides the user with a file directory system. This is used for filing variables and storing functions and programs to use later. The HP-28S calculator offered a series of firsts. It was the first to offer RPL, or Reverse Polish LISP, as its programming language and was the first scientific calculator capable of symbolic computation. Even with all the capability, the 28S is simple to operate. There are four editions of manuals that you can use as guides. With these innovations, the HP-28S is a reliable device for solving advanced equations.
Product Identifiers
Brand
HP
UPC
0088698000106
Model
28S
eBay Product ID (ePID)
166527924
Additional Product Features
Power Source
Battery
Size
Pocket
Key Size
Regular
Type
Scientific
Artikelbeschreibung des Verkäufers
Info zu diesem Verkäufer
SG Retro Tech
100% positive Bewertungen•57 Artikel verkauft
Angemeldet als gewerblicher Verkäufer
Verkäuferbewertungen (36)
- a***m (78)- Bewertung vom Käufer.Letzter MonatBestätigter KaufLiterally the best purchase experience ever! Arrived early, extremely well packaged and better than I imagined. The condition of the box and tapes is practically brand new, and the sound is perfect, just as I remember it. Better than described! Seller had amazing communication all the way through, and the value is amazing. Very happy, I completely recommend this seller A+++++ Thank you!!Antwort von sgrt-mg- Verkäufer sgrt-mg hat auf Bewertung reagiert.- Verkäufer sgrt-mg hat auf Bewertung reagiert.I’m so glad this set brought back great memories for you! It makes me really happy to have played a part in helping you reconnect with something from your childhood. Thanks again for the kind words and for letting me be part of that experience.
- 3***3 (155)- Bewertung vom Käufer.Letzte 6 MonateBestätigter KaufExcellent seller. Answered questions immediately, maintained great communication. Item exactly as described. Great price. Very fast shipping. Would definitely shop with them again.Antwort von sgrt-mg- Verkäufer sgrt-mg hat auf Bewertung reagiert.- Verkäufer sgrt-mg hat auf Bewertung reagiert.Hello helder33, Thank you so much for your feedback! I truly appreciate you taking the time to share it. I’m glad to know you’re happy with your purchase, and it was a pleasure doing business with you. Best regards, Michael SG Retro Tech
- c***i (162)- Bewertung vom Käufer.Letzter MonatBestätigter KaufExactly as described. Excellent communication and packaging.Antwort von sgrt-mg- Verkäufer sgrt-mg hat auf Bewertung reagiert.- Verkäufer sgrt-mg hat auf Bewertung reagiert.We really appreciate your kind words and feedback! We're glad the calculator arrived just as expected and that you were happy with the communication and packaging. Michael / SG Retro Tech
Verkäuferbewertungen (36)
- a***m (78)- Bewertung vom Käufer.Letzter MonatBestätigter KaufLiterally the best purchase experience ever! Arrived early, extremely well packaged and better than I imagined. The condition of the box and tapes is practically brand new, and the sound is perfect, just as I remember it. Better than described! Seller had amazing communication all the way through, and the value is amazing. Very happy, I completely recommend this seller A+++++ Thank you!!Antwort von sgrt-mg- Verkäufer sgrt-mg hat auf Bewertung reagiert.- Verkäufer sgrt-mg hat auf Bewertung reagiert.I’m so glad this set brought back great memories for you! It makes me really happy to have played a part in helping you reconnect with something from your childhood. Thanks again for the kind words and for letting me be part of that experience.
- 3***3 (155)- Bewertung vom Käufer.Letzte 6 MonateBestätigter KaufExcellent seller. Answered questions immediately, maintained great communication. Item exactly as described. Great price. Very fast shipping. Would definitely shop with them again.Antwort von sgrt-mg- Verkäufer sgrt-mg hat auf Bewertung reagiert.- Verkäufer sgrt-mg hat auf Bewertung reagiert.Hello helder33, Thank you so much for your feedback! I truly appreciate you taking the time to share it. I’m glad to know you’re happy with your purchase, and it was a pleasure doing business with you. Best regards, Michael SG Retro Tech
- c***i (162)- Bewertung vom Käufer.Letzter MonatBestätigter KaufExactly as described. Excellent communication and packaging.Antwort von sgrt-mg- Verkäufer sgrt-mg hat auf Bewertung reagiert.- Verkäufer sgrt-mg hat auf Bewertung reagiert.We really appreciate your kind words and feedback! We're glad the calculator arrived just as expected and that you were happy with the communication and packaging. Michael / SG Retro Tech