yann64andClaude Opus 5.5
de19014649
228 files were never archived; see docs/not-recovered.md in the extraction repo. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
201 lines
8.1 KiB
Markdown
201 lines
8.1 KiB
Markdown
---
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title: Casio FX-702P
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categories:
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- Computers
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types:
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- Pocket
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origins:
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- Japan
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years:
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- '1981'
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cpus:
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- 4 bit CMOS LSI
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params:
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name: FX-702P
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image: /media/museum/photos/casio_fx702p_system_s1.jpg
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company: /companies/casio
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company_name: Casio
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specs:
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- label: NAME
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value: FX-702P
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- label: MANUFACTURER
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value: Casio
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- label: TYPE
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value: Pocket
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- label: ORIGIN
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value: Japan
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- label: YEAR
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value: '1981'
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- label: END OF PRODUCTION
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value: Unknown
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- label: BUILT IN LANGUAGE
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value: Basic interpreter
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- label: KEYBOARD
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value: 65 keys, calculator type with alphanumeric keys (non-QWERTY)
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- label: CPU
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value: 4 bit CMOS LSI, 4 x NEC D444G
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- label: SPEED
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value: Unknown
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- label: RAM
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value: 1680 bytes for BASIC plus 26 memories
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- label: ROM
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value: Unknown
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- label: TEXT MODES
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value: 1 line x 20 chars plus a 4 digit seven segment display part
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- label: GRAPHIC MODES
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value: None
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- label: COLORS
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value: Monochrome
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- label: SOUND
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value: None
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- label: SIZE / WEIGHT
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value: 165 (W) x 82 (D) x 17 (H) mm / 176 g (with batteries)
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- label: I/O PORTS
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value: 7-pin expansion port for printer and cassette interface, 11-pin slot for memory module
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- label: POWER SUPPLY
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value: 2 x CR-2032 lithium batteries
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- label: PERIPHERALS
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value: |-
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FA-2 cassette interface\
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FP-10 mini electro printer: electrostatic printer for 35 mm metallised paper
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- label: PRICE
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value: '250'
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tabs:
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- photos
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- adverts
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- hardware
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- links
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photos:
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- title: FRONT VIEW
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subtitle: ''
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text: Roman Von Wartburg
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image: /media/museum/photos/casio_fx702p_keyboard_s1.jpg
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- title: KEYBOARD CLOSE-UP
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subtitle: ''
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text: ''
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image: /media/museum/photos/casio_fx702p_keybcloseup_s1.jpg
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- title: BOTTOM SIDE
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subtitle: ''
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text: |-
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**(1)** Batteries housing\
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**(2)** RAM module connector\
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**(3)** Expansion port
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image: /media/museum/photos/casio_fx702p_bottomside_s1.jpg
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- title: INSIDE
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subtitle: ''
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text: |-
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**(1)** Display driver chips\
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**(2)** Four NEC CMOS LSI chips in charge of CPU functions, ROM and RAM memory and I/O ports\
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**(3)** Expansion connector\
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**(4)** LCD contrast knob
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image: /media/museum/photos/casio_fx702p_inside_s1.jpg
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- title: MANUALS
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subtitle: ''
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text: The FX-702P vas delivered with a user manual and a very useful program library gathering more than 70 programs and complex calculations
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image: /media/museum/photos/casio_fx702p_manuals_s1.jpg
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- title: THE BOX
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subtitle: ''
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text: Both sides of the FX-702 box.
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image: /media/museum/photos/casio_fx702p_box_s1.jpg
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adverts:
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- title: FRENCH ADVERT (MAY 1982)
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subtitle: ''
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text: |-
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"Computing pret-a-porter"
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"Casio FX-702P : pocket Basic"
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"Casio, it counts"
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image: /media/museum/pubs/casio_fx702p_pub_3.jpg
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- title: FRENCH ADVERT (DEC. 1983)
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subtitle: ''
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text: '"Basic, It is magic"'
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image: /media/museum/pubs/casio_fx702p_pub_1.jpg
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- title: FRENCH ADVERT (DEC. 1982)
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subtitle: ''
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text: |-
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"Christmas accounts"
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"Casio, it counts"
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image: /media/museum/pubs/casio_fx702p_pub_2.jpg
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hardware:
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- title: FA-2 INTERFACE
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subtitle: ''
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text: FA-2 tape recorder interface
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image: /media/museum/hardware/casio_fx702p_fa2interface_s1.jpg
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- title: FP-10 PRINTER
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subtitle: ''
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text: The FP-10 Mini Electro Printer can be connected to the FX-601P/602P and FX-702P computers. It uses metalized paper rolls and prints 20 characters per line.
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image: /media/museum/hardware/casio_fx702p_fp10printer_s1.jpg
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links:
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- title: Silrun Systems
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url: http://www.silrun.info/
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text: Documentations to download for Casio pockets ! Useful.
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- title: The Pocket Computer Museum
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url: http://pocket.free.fr/
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text: The site to visit for pockets computers !
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comments:
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- author: Jay (Canada)
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date: Thursday 28th December 2017
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text: Hello, I have FX-702 . Its still working in good condition. I still have operating instruction in Japanese language . I bought this in Nagoya Japan in 1980.
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- author: Vexi (Finland)
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date: Monday 2nd November 2015
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text: Hi! I have FX-702P with FP-10 electrostatic printer and FA-2 Storage interface. Interested? voaa(at)hotmail.com
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- author: AnthonyTan (china)
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date: Saturday 14th June 2014
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text: I want to ask how to manage molds in the cover of LCD? please if you have some time give me some answer and send to my email. 16xcore@gmail.com Thank you sooooo much guys :(
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- author: ronald (Nederland)
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date: Saturday 3rd November 2012
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text: |-
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I have still a good working FX-702P
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Anybody interested ?
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- author: David
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date: Thursday 16th August 2012
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text: Guys I''m desperately looking for a display for my FX-702P, anybody could help me please ? Thanks a million !
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- author: David
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date: Thursday 16th August 2012
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text: Guys I''m desperately looking for a display for my FX-702P, anybody could help me please ? Thanks a million !
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- author: Gustavo Avellar (Belo Horizonte - MG - Brasil)
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date: Saturday 23rd September 2006
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text: |-
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You can find the manual for this calculator on this link:\
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http://pocketcomputerworld.free.fr/Manuals/FX-702P.pdf
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- author: Lupus (Brazil)
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date: Monday 11th July 2005
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text: |-
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Hi Paolo,\
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Did you get the manual? I am looking for one too!!!\
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Lupus
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- author: PAOLO GUENZI (BOLOGNA (ITALIA))
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date: Thursday 25th November 2004
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text: |-
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I WANT ABSOLUTLY FUOND AN USER MANUAL OF CASIO FX-702P.WHO CAN HELP ME?I'M ESPECIALLY SEARCHING A MANUAL OF BASIC LANGUAGE.\
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TANK YOU!
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related:
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- /museum/casio-fx-700p
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- /museum/casio-pb-100
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- /museum/casio-pb-300
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oc_id: 987
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source:
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url: https://web.archive.org/web/20230605041544/http://www.old-computers.com/museum/computer.asp?c=987
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date: '2023-06-05'
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---
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The FX-702P was Casio's answer to Sharp's [PC-121x](/museum/sharp-pc-1210-1211-1212/) series. In certain ways, this machine marks the transition from keystroke programmables such as the FX-601P/602P to "real" pocket computers. On the one hand, Casio labeled the FX-702P only as "Programmable Calculator", and its non-QWERTY layout of the alphanumerical keys differentiate it from most later pocket computers. On the other hand, the FX-702P had a viable BASIC interpreter which allows for more flexible programming.
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The hardware mainly consists of four CMOS LSI chips incorporating logical functions and memory, and four display driver chips. The display provides 20 characters in 5x7 pixel matrix, plus a separate 7-segment display part indicating the remaining program memory.
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Comparable to the Sharp PC-1211 and 1212, the FX-702P had about 2 KB of RAM, divided into 1680 BASIC steps and 26 memories; more memory for variables could be partitioned out at the expense of BASIC memory. A memory expansion slot was built-in, but a suitable RAM module never came out.
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With this model, Casio introduced their method of dividing program memory into 10 autonomous areas - P0 to P9 - which continued to be implemented in all following Casio models for many years.\
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The nonstandard keyboard makes it most cumbersome to use for anybody familiar with the QWERTY standard; on the other hand, triple assignments of most keys makes programming somewhat more efficient.
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The built-in interpreter supports a variant of the BASIC language, with some keywords spelled in a different way than the later quasi-standard, e.g. PRT instead of PRINT, or GSB and RET for GOSUB and RETURN. Compared to Sharp's PC-121x models, it has substantially more mathematical and statistical functions, string manipulation functions and a more flexible variable handling scheme.
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Two peripheral devices were available:\
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• The **FA-2** Cassette Interface, which, as a side note, could also play musical notes when used with the FX-501P/FX-502P or FX-601P/602P calculators, but not with the FX-702P,\
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• The **FP-10** Mini Electro Printer, a non-impact, electrostatic printer, which used special metalized paper.
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Thanks to **Roman von Wartburg** and his [site](http://retrocomputing.ch/) for this information.
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