Links
- The pocket computer museum - an excellent overview of old BASIC programmable calculators and their peripherals.
- Programmable Calculators - collection of programmable and non-programmable calculators, complete list of all known programmable calculators.
- Programmable Casio calculators and pocket computers - with many photos, documents, scans of magazine articles, pictures and advertisements (French and English)
- Old Organizers Collection - high quality photos (including internals), manuals.
- CASsette IO Utilities - programs to handle tape and floppy disk images from vintage pocket computers, mostly Casio.
- Casio PB-1000 forever! - a reference site (in Japanese)
- HD61700 spirits - cross assembler HD61, disassembler DA61, monitor LEMON and other programs for the Casio PB-1000, undocumented assembly instructions (Japanese/English)
- Blog about the the Casio FX-870P and VX-4 with, among others,
detailed information about the internal resources (system variables and function addresses, memory map, data structures) and the HD61700 assembler (Japanese)
- PB-1000 Airbug One - an independent attempt to identify undocumented machine code instructions, disassembler and other programs (French/English)
- The Casio PB-1000 Homepage (in German)
- Casio PB-1000, communication with a PC and a printer (a diploma thesis in Spanish)
- Casio FX-602P Page - a reference site
- Casio FX-602P simulator project
- Information and programs for the Casio FX-602P including schematics, adding extra memory, turbo mode and synthetic programming (in German)
- Hacked CASIO graphic calculators - reverse engineering the Casio CFX-9850G CPU instruction set, machine code programming on this calculator
- Pocket computer emulator "PockEmul" which emulates multiple models, including the Casio FX-8000G, PB-1000, PB-2000C along with peripheral units FA-80, MD-100, FP-40, FP-100
- Multi Emulator Super System (MESS) is an emulator for many game consoles and computer systems, including the Casio models PB-1000 and PB-2000C
- FOROPLUS - calculators programmable in BASIC - comprehensive reviews, tips, manuals, emulators (in Spanish)
- Collection of Soviet Calculators
- Club of calculator fans - discussion forum, calculator manuals (in Russian)
- Soviet calculators and watches - photos, manuals, circuit diagrams, software (in Russian)
- Elektronika MK-90 hacking page (in Russian)
- Games for the Elektronika MK-90 (in Russian)
- Memory module for Elektronika MK-90 based on STM32 microcontroller
- Programs for Elektronika MK-90 - ported games T-Rex Runner and Flappy Bird, grayscale images
- All about the Elektronika MK-90 - development history, documentation, programs, products based on MK-90 (in Russian)
- Elektronika MK-90 programming in C language (in Russian)
- Elektronika MK-85 web page (in Russian, abandoned)
- Facebook group about the Elektronika MK-85 "Old soviet pocket computers and calculators" (former mk85.republika.pl) - description, manual, circuit diagram and other documents, games, modifications (RAM expansion, replacing of the original ROM with a Flash chip, I2C bus interface), repair tips (in Polish).
- Elektronika MK-85 remake
- History of the development of the Elektronika MK-85 and another article on this subject (both in Russian)
- Free PDP-11 assembler PDPXASM which can be used to write machine code programs for the Elektronika MK-85 and MK-90.
- PDP-11/40 processor handbook - instruction set, assembly programming manual, fits the MK-85 and MK-90 as well.
- Description of the HP-35 calculator architecture and firmware, algorithms of elementary math functions.
