Casio fx-730P

 
Serial Number None
Accessories Pouch

Manual: Personal Computer fx-730P Bedienungsanleitung (German)
Condition Absolutely excellent!
Acquired 29.9.2002
RP-8
Accessory RP-8 Memory Pack, (8KByte RAM), Made in Japan

Apparently usable in these Casio calculators:

FX-730P, FX-785P, FX-790P, FX-791P, FX-840P, FX-841P, FX-850P, FX-860P, FX-860Pvc, FX-870P, FX-880P, FX-890P, VX-1, VX-2, VX-3, VX-4, Z-1, Z-1GR, PB-220, PB-240

(see Pocket Computer Museum)
Condition
Installed 15.5.2003 and works fine.
Acquired 9.5.2003




Accessory RP-8 Memory Pack, (8KByte RAM), Made in Japan
Condition
Including original cardboard and plastic box. Cosmetically excellent. Function not verified.
The small plastic bag below the RAM pack contains the necessary screws.
Acquired 8.2.2005, courtesy of Holger Stadermann


Accessory RP-16 Memory Pack, (16KByte RAM), Made in Japan
Condition
Including original cardboard and plastic box. Cosmetically excellent. Function not verified. Interesting the price tag of "DM 79.90" corresponding to approx. 40 Euro.
Note that today (2005, about 20 years after the introduction of the fx-730P) you can purchase a 1 GByte flash memory stick at the same price. This is a 2^16-fold increase in 240 months or a doubling of the RAM capacity every 15 months - which comes close to Moore's Law which predicts a doubling of computer capacity every 18 months. Moore first uttered his observation in 1964.
Acquired 8.2.2005, courtesy of Holger Stadermann

Type, Precision, Input Mode Scientific, 10 BCD digits, exponent ±99, Algebraic
Programmable Yes, BASIC interpreter, up to 10 different programs
Performance Index. 12
Memory Permanent memory, 7420 bytes available, with optionally installable extension RAM (8kB) 15712 bytes.
Display 25 digits 5x7 pixel b&w LCD, many annunciators, in the top row 4 1/2 digits 7 segment (apparently to display the available memory (in bytes) when in programming "mode 1"). Separate contrast control knob on the left side of the unit.
Special features
Original Pricing, Production Unknown, ca. 1984
Batteries 2x large button-sized cell, 1x small button-sized backup cell
Dimensions Length 7.7cm, Width 16.4cm, Height 1.3cm
Links
Comment Available peripherals:
FP-40/SB-42  Printer & cable
FA-5 Cassette recorder interface
FA-3 Cassette recorder
FP-12S Printer
RP-8
8 kByte RAM pac

Some BASIC statements have unusual syntax: There is a dedicated "unequal"  and "exponent" symbol instead of using "<>" end "E". "IF ... GOTO nn" must be coded as "IF ... THEN nn".

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