![]() Here are places that will help you with your most frequently asked questionsĬoncerning repairs, spare parts, and manuals.Ĭalculator Collectors, Data, Classifieds, Mail Distribution Lists, and Forums Look around, enjoy yourself, and marvel over how calculators (both steel and silicon) have changed our world. I also hope this poster can serve as a teaching aid for school teachers. The US currency over the past 100 years or so. Showing both the front and back side of each bill so you can study and appreciate the art and changes that have happened to My Modern US Currency posterĪrranges all the major version of all the denominations. I also find the art and design that is in the US currency amazing. My Telephone poster is an updated tribute to this now 45 year old poster. That showed the history of the telephone. Yes, a slight deviation from calculators but I always remembered touring the phone company as a child and receiving a poster Modern US Currency are the latest additions to my poster line up. It even serves as a reference in the support offices of HP.įinally my newest posters of the History of the Telephone and ![]() My Calculators of HP poster is another popular poster I created. Like to gripe about why HP abandoned the scientific calculator (HP-11, HP-15) in this wonderfully convenient format. To this day the all time most popular calculator is the HP-12 Business calculator. To compete with "The Museum"! HP introduced theġst scientific calculator (HP-35) then introduced the first business calculator (HP-80). My favorite electronic calculators are HPs but I don't plan on this page even starting Posters are wildly popular around the world and have been featured in museum displays and displayed in the halls and offices of NASA. I do collect and study the manufacturing variations of the two models of the Curta calculator. On for many years because it was so popular among road rallyest and surveyors. And it's mechanical not electronic!īut it represents a final ultimate, state-of-the-art achievement in the mechanical world before the electronicĬalculator revolution took over and over night obsoleted all mechanical machines. I recent years I have become an expert with the amazing Curta calculator. TIs calculators, and on my all time favorite mechanical calculator, the CURTA. $ dfu-util -D DMCP_flash_3.10_DM42-3.10.bin -d 0483:df11 -a Flash /0x08000000/512*0002Kg" -s 0x8000000Ĭopyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.Here you will find a wealth of data I have collected over the years on general calculators, HPs calculators, As on the original HP-42S, BST will start auto-repeating after a while and SST will NULL after a couple of seconds if you press and hold ▲ or ▼ respectively. Press and hold the SHIFT key while pressing ▲ or ▼ in order to execute BST or SST respectively when in alpha input mode. Un-shifted R/S still behaves as usual allowing program execution to resume after inputting alpha data to a program.įunction arguments (eg. Local labels LBL A and LBL a and global labels LBL "ABC", LBL "123" and LBL "A123" work as expected. Two-digit local labels LBL 01 are not available. Switch to standard HP-42S mode to get them. Shifted R/S gives '?' instead of entering/leaving Prgm mode.ĪSTO, ARCL, '%', 'pi' and 'E' (exponent) are not available. Shifted ÷, ×, - and + give '÷', '×', '-' and '+' instead of the alpha characters. SHIFT 0 (zero) to SHIFT 9 give the digits 0-9 instead of the alpha characters. SHIFT A to SHIFT O give the same characters. The function keys still allow input in HP-42S mode.Īll alpha keys A-Z give the expected characters. IR Transmitter compatible with the original HP-82240A/B printerġ × CR2032 lithium coin cell, 3.0 volts Ĥ kHz resonance frequency Piezo-electric buzzer ![]() USB-Micro-B port, connects as USB mass storage device Monochromatic ultra high contrast (14:1) transflective memory LCD display IEEE 754-2008, 128-bit floating point precision implementation with 128-bit transcendental function support Open Source Free42 running on SwissMicros Operating System (DMCP) ![]() Flashing QSPI using dm_tool (obsolete)Ĭase made from stainless steel, matte black Physical Vapour Deposition (PVD) coated and laser engraved ![]()
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