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Several HP calculators were offered with HP-IL interfaces. In the HP-75C/D it was built in, in others such as the HP-71 and HP-41, plug in interface modules were available (such as the HP82160A for the HP-41). Popular uses for the HP-IL on the calculators included printing (using the HP 82162A thermal printer) and cassette file storage (through ...
In May 2023, a HP 15C Collector's Edition was announced [8] and was released in July 2023 by the HP Development Company, L.P.'s licensees Moravia Consulting spol. s r.o. and Royal Consumer Information Products, Inc. [9] [10] The calculator is manufactured in the Philippines. It supports up to 672 steps for programs and up to 99 registers.
A USB-to-serial adapter or simply USB adapter is a type of protocol converter that is used for converting USB data signals to and from serial communications standards (serial ports). Most commonly the USB data signals are converted to either RS-232 , RS-485 , RS-422 , or TTL-level UART serial data.
Using an HP 82402 Dual HP-IL controller, it was even possible to connect one 71B to two HP-IL loops simultaneously, possibly as a controller in one and as a device in another. The HP-71B could optionally be made compatible with the large volume of programs written for the HP-41 series of calculators via a plug-in ROM that emulated the HP-41 at ...
The HP 48 is a series of graphing calculators designed and produced by Hewlett-Packard from 1990 until 2003. [1] The series includes the HP 48S , HP 48SX , HP 48G , HP 48GX , and HP 48G+ , the G models being expanded and improved versions of the S models.
HP 39/40 series are graphing calculators from Hewlett-Packard, the successors of HP 38G. The series consists of six calculators, which all have algebraic entry modes, and can perform numeric analysis together with varying degrees of symbolic calculation.
A desktop version with built-in thermal printer was sold as the HP-97 at a price of $750. [2] Collectively, they are known as the HP-67/97. [3] Marketed as improved successors to the HP-65, the HP-67/97 were based on the technology of the "20-series" of calculators (HP-25, HP-19C etc.) introduced a year earlier. The two models are functionally ...
The HP-21 was a scientific calculator produced by Hewlett-Packard between 1975 and 1978. [1] It was designed as a replacement for the HP-35 , and was one of a set of three calculators, the others being the HP-22 and HP-25 , which were similarly built but aimed at different markets.