HP-71B

The HP-71B was a hand-held computer or calculator programmable in BASIC, made by Hewlett-Packard from 1984 to 1989.

==Description== At 7.5 × 3.875 × 1 inch (19 × 9.7 × 2.5 cm), the HP-71B is smaller and less expensive than the preceding model, the HP-75. The 71B has a single-line 22-character liquid crystal display, 64K system ROM and 17.5K user memory. Priced at US$595 MSRP (US$ in ), it operates on four AAA batteries or on AC adaptor. Four plug-in ports permits ROM-based programs or additional user memory to be added. Separate compartments could accommodate an optional magnetic card reader and an optional HP-IL interface (HP 82401A) that could be used to connect printers, storage and electronic test equipment.