Vintage Casio FX-501P Programmable Scientific Calculator, dated around 1979, from the FX-501P and FX502P range. The calculator is in excellent'used' condition.
The box has a couple of tears and marks where it has been taped closed. The original holder for the calculator is in unused condition. I have tested the calculator with the batteries I have and it is in good working condition.
There are a few minor scratches/minor dents on the back of the calculator - too minor to show up on the photograph. The FX-501P and FX-502P were programmable calculators, manufactured by Casio from 1978/1979. They were one of the first LCD programmable Calculators tobe produced as up until 1979 (and the introduction of the HP-41C) nomanufacturer had introduced such a device. The extremely low power consumption makes battery life very long.
My original FX-501P lasted for years. The Casio FX-501P is a programmable calculator with 10digits precision and algebraic logic. The power source is 2 x CR2032 3V.
The calculator was manufactured in Japan. Featuring a single line 7-segment liquid crystal display with 10 digits as main display. An additional 3 digits 7-segment display used to display exponents and program steps when entering or debugging programs and 10 status indicators. The display was covered with a yellow filter. The programming model employed was key stroke programming, the instructions and special programming overlay card comes in the box.
The FX-501P could store 128 steps, with 11 memory registers and conditional and unconditional jumps as well as subroutines were supported. The FX-501P supported indirect addressing both for memory access and jumps and therefore the programming model could be considered Turing complete. What differentiated the FX-501/ FX-502P from its competitors was that programming was retained in a battery-buffered memory when the calculator was turned off.The FX-501P used the FA-1 to store program and data to Compact Cassette (NOT included). Interestingly the FX-501P was used on the 1981 song PocketCalculator by music group and electronic music pioneers Kraftwerk, and the FX-501P is included in the list of instruments used to make their album "Computer World" and was also released as a single. The item "Vintage Casio FX-501P Programmable Scientific Calculator around 1979" is in sale since Saturday, June 5, 2021. This item is in the category "Business, Office & Industrial\Office Equipment & Supplies\Office Equipment\Calculators". The seller is "eclecticallsorts" and is located in Royston. This item can be shipped to United Kingdom, United States, Japan, Canada, Ireland, Australia, Germany, France, Greece, Italy, Spain, Antigua and barbuda, Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech republic, Denmark, Estonia, Finland, Hungary, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Sweden, Bahrain, New Zealand, China, Israel, Hong Kong, Norway, Indonesia, Malaysia, Mexico, Singapore, South Korea, Switzerland, Taiwan, Thailand, Bangladesh, Belize, Bermuda, Bolivia, Barbados, Brunei darussalam, Cayman islands, Dominica, Egypt, Guernsey, Gibraltar, Guadeloupe, Grenada, French guiana, Iceland, Jersey, Jordan, Cambodia, Saint kitts and nevis, Saint lucia, Liechtenstein, Sri lanka, Macao, Monaco, Maldives, Montserrat, Martinique, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Turks and caicos islands, Aruba, Saudi arabia, South africa, United arab emirates, Ukraine, Chile, Bahamas, Colombia, Costa rica, Dominican republic, Guatemala, Honduras, Jamaica, Kuwait, Panama, Philippines, Qatar, El salvador, Trinidad and tobago, Uruguay.