|HP codename, series||Titan, -|
|Type, Precision, Input Mode||Scientific, 12 BCD digits, exponent ±499, Algebraic|
|Programmable||BASIC interpreter. The performance is in the range of the TI-74, HP-32SII and Casio fx-880. However, it is significantly slower than the HP-28S and Sharp PC-E500.|
|Memory||16kbyte by default, 4kByte and 32kByte modules|
|Display||72x8 pixel black&white LCD, 12x1 character|
|Special features||Very versatile commandset including precise timers which can turn on the unit at a given time/date (ie. for measurements). Includes a file system to store data and programs.|
|Original Pricing, Production||1.2.1984 (1981?) ($525) - 11/1988 (1989?) ($625)|
|Batteries||4x AAA or external 8V AC power supply with special connector. Unit can be operated with the external power supply without having a rechargeable battery pack installed.|
|Dimensions||Length 9.6cm, Width 19.2cm, Height 2.6cm|
Owner's Manual, March 1987 (PDF)
HP-71 Reference Manual, October 1987 (PDF)
HP-IL Info (Dan McDonald)
HP41.org/HPIL (HP-IL Information including manuals)
|Comment||HP's last unit that was BASIC-programmable.
It is a rather large unit so it can hardly be used as a "pocket calculator". But its powerful BASIC instruction set, the file system and the possibilty to access a wealth of I/O devices thru an installable HP-IL interface made it an ideal process control unit.
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