The HP-75C and HP-75D were hand-held computers programmable in BASIC, made by Hewlett-Packard from 1982 to 1986. The HP-75 had a single-line liquid crystal display, 48 KiB system ROM and 16 KiB RAM, a comparatively large keyboard (albeit without separate numeric pad), a manually operated magnetic card reader (2×650 bytes per card), 4 ports for memory expansion (1 for RAM and 3 for ROM modules), and an HP-IL interface that could be used to connect printers, storage and electronic test equipment. The BASIC interpreter also acted as a primitive operating system, providing file handling capabilities for program storage using RAM, cards, or cassettes/diskettes (via HP-IL).
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| - Die Modelle HP-75C und HP-75D waren die ersten in BASIC programmierbaren Taschenrechner von Hewlett-Packard. Der HP-75C wurde ab 1982 verkauft, 1984 folgte der HP-75D, der um eine Anschlussmöglichkeit für einen optischen Barcodeleser erweitert worden war. Die Produktion endete 1986. (de)
- The HP-75C and HP-75D were hand-held computers programmable in BASIC, made by Hewlett-Packard from 1982 to 1986. The HP-75 had a single-line liquid crystal display, 48 KiB system ROM and 16 KiB RAM, a comparatively large keyboard (albeit without separate numeric pad), a manually operated magnetic card reader (2×650 bytes per card), 4 ports for memory expansion (1 for RAM and 3 for ROM modules), and an HP-IL interface that could be used to connect printers, storage and electronic test equipment. The BASIC interpreter also acted as a primitive operating system, providing file handling capabilities for program storage using RAM, cards, or cassettes/diskettes (via HP-IL). (en)
- El HP-75C y el HP-75D eran computadoras de mano programables en BASIC, hechos por Hewlett-Packard desde 1982 a 1986. El HP-75 tenía un pantalla de cristal líquido de una sola línea, 48 KB de ROM del sistema y 16 KB RAM, un teclado comparativamente grande, aunque sin el teclado numérico separado (keypad), un lector de tarjeta magnética manual (2×650 bytes por tarjeta), un puerto de enchufe para la expansión de memoria, y una interfaz que podía ser usada para conectar impresoras, almacenamiento y el equipo de prueba electrónico. El interpretador BASIC incluyó capacidades para manejar archivos, usando para almacenamiento de programa, la memoria RAM, tarjetas, o casetes/disquetes (vía HP-IL). (es)
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| - HP-75D handheld BASIC computer. Magnetic cards are inserted to the right of the space bar key. (en)
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| - Die Modelle HP-75C und HP-75D waren die ersten in BASIC programmierbaren Taschenrechner von Hewlett-Packard. Der HP-75C wurde ab 1982 verkauft, 1984 folgte der HP-75D, der um eine Anschlussmöglichkeit für einen optischen Barcodeleser erweitert worden war. Die Produktion endete 1986. (de)
- The HP-75C and HP-75D were hand-held computers programmable in BASIC, made by Hewlett-Packard from 1982 to 1986. The HP-75 had a single-line liquid crystal display, 48 KiB system ROM and 16 KiB RAM, a comparatively large keyboard (albeit without separate numeric pad), a manually operated magnetic card reader (2×650 bytes per card), 4 ports for memory expansion (1 for RAM and 3 for ROM modules), and an HP-IL interface that could be used to connect printers, storage and electronic test equipment. The BASIC interpreter also acted as a primitive operating system, providing file handling capabilities for program storage using RAM, cards, or cassettes/diskettes (via HP-IL). Other features included a text editor as well as an appointment reminder with alarms, similar to functions of modern PDAs. The HP-75D (1984–1986) added a port for a bar code wand, often used for inventory control tasks. The HP-75 was comparatively expensive with an MSRP of $995 ($2,014 in 2005) for the 75C or $1095 ($2,058 in 2005) for the 75D, making it less popular than the cheaper successor model, the HP-71B. The HP-75C has a KANGAROO printed on its PCB, as its codename (see link for picture). HP-75D codename's is MERLIN. (en)
- El HP-75C y el HP-75D eran computadoras de mano programables en BASIC, hechos por Hewlett-Packard desde 1982 a 1986. El HP-75 tenía un pantalla de cristal líquido de una sola línea, 48 KB de ROM del sistema y 16 KB RAM, un teclado comparativamente grande, aunque sin el teclado numérico separado (keypad), un lector de tarjeta magnética manual (2×650 bytes por tarjeta), un puerto de enchufe para la expansión de memoria, y una interfaz que podía ser usada para conectar impresoras, almacenamiento y el equipo de prueba electrónico. El interpretador BASIC incluyó capacidades para manejar archivos, usando para almacenamiento de programa, la memoria RAM, tarjetas, o casetes/disquetes (vía HP-IL). Otras características incluyeron un editor de textos así como un recordador de citas con alarmas, similar a funciones de PDAs modernos. El HP-75D (1984-1986) agregó un puerto para un lector de código de barras manual, usado a menudo para tareas de control de inventario. El HP-75 era comparativamente costoso en $995 MSRP para el 75C, o $1095 MSRP para el 75D, haciéndolo menos popular que el más barato modelo sucesor, el HP-71B. (es)
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