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C > CASIO  > FX-700P   


Casio
FX-700P

The FX-700P is quite the same machine as the PB-100, but is a member of the more scientifically oriented FX product family. Consequentially, it is called "Programmable Calculator", as most FX family members.

It has 2 KB RAM, i.e. it was equipped with two HD61914 RAM chip instead of one like the PB-100, but no further RAM expansion was ever made available.
Moreover, the mathematical functions (SIN, COS, etc.) were assigned to the keyboard, by means of an additional function key. Apart from that, the hardware of the two machines is identical.

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Two corrections:
1. In Russian, MK stands for "microcomputer".
2. MK-85 has the body cloned from Casio but it''s absolutely different inside. MK-85 is 16-bit and it''s compatible (to a degree) with DEC PDP boxes. E.g. one of its variations was used for strong cryptography (to wire money transfers via unsafe public networks).

Original design of MK-85 (with misleading name MK-87) has nothing common with Casio: http://www.computerra.ru/upload/apismenny/elektronika-mk-87-1.jpg

          
Thursday 13rd August 2015
Ivan Mikhailov

This was cloned down to the buttons by the Soviets as the Elektronika MK-85....probably had different guts (the Soviets had round microchips for calculators for some reason.)

"MK" stands for "mark." Elektronika was a stock name for electronic gadgets made in the USSR that weren''t radios.

          
Saturday 14th February 2015
Joe Jack Johnson (So-Cal.)

 

NAME  FX-700P
MANUFACTURER  Casio
TYPE  Pocket
ORIGIN  Japan
YEAR  1982
END OF PRODUCTION  Unknown
BUILT IN LANGUAGE  Basic interpreter
KEYBOARD  QWERTY calculator type 54 keys with numeric keypad
CPU  HD61913 CMOS VLSI
SPEED  455 kHz ceramic resonator used as system clock
RAM  2 KB (1568 bytes for BASIC)
ROM  12 KB
TEXT MODES  1 line x 12 chars plus a 4 digit seven segment display part
GRAPHIC MODES  None
COLORS  Monochrome LCD
SOUND  None
SIZE / WEIGHT  165 (W) x 71 (D) x 10 (H) mm / 116 g (with batteries)
I/O PORTS  12-pin expansion port for printer and cassette interface
POWER SUPPLY  2 x CR-2032 lithium batteries
PERIPHERALS  FA-3 cassette interface
FP-12 mini thermal printer
PRICE  $200 (USA, Dec 1983) including FA-3 and FP-12


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