yann64andClaude Opus 5.5
b274874139
1,289 discussions, 9,527 archived comments; pages no longer carry the comments themselves. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
189 lines
7.2 KiB
Markdown
189 lines
7.2 KiB
Markdown
---
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title: Casio FX-9000P
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categories:
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- Computers
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types:
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- Professional Computer
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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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- Z80
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params:
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name: FX-9000P
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image: /media/museum/photos/casio_fx9000p_system_1.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-9000P
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- label: MANUFACTURER
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value: Casio
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- label: TYPE
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value: Professional Computer
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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: BUILT IN LANGUAGE
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value: BASIC interpreter
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- label: KEYBOARD
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value: 67 keys with numeric keypad and arrows keys
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- label: CPU
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value: Z80
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- label: SPEED
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value: 2.75 MHz.
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- label: RAM
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value: 4 KB expandable to 32 KB
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- label: VRAM
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value: 4 KB
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- label: ROM
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value: 12 KB (BASIC interpreter) expandable to 24 KB
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- label: TEXT MODES
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value: 32 chars. x 16 lines
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- label: GRAPHIC MODES
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value: 256 x 128 pixels
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- label: COLORS
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value: Monochrome
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- label: SIZE / WEIGHT
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value: 41.5(W) x 43(D) x 18.7(H) cm. / 7.2 Kgs
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- label: I/O PORTS
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value: Tape recorder, Printer, FDD unit
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- label: BUILT IN MEDIA
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value: C-MOS RAM modules
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- label: POWER SUPPLY
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value: Built-in power supply unit
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- label: PERIPHERALS
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value: |-
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Option boards OP-1 and OP-2\
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Dual 5.25 320 KB FDD unit\
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16 KB N-MOS RAM pack ($450)\
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4 KB C-MOS RAM pack ($180)
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- label: PRICE
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value: $1500
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tabs:
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- photos
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- adverts
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- hardware
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forum_thread: 743
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photos:
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- title: LARGE VIEW
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subtitle: ''
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text: User could add/remove up to four ROM/RAM expansion module by lifting up the front cover.
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image: /media/museum/photos/casio_fx9000p_system_s2.jpg
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- title: TOP VIEW
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subtitle: ''
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text: ''
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image: /media/museum/photos/casio_fx9000p_topview_s1.jpg
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- title: RUNNING SYSTEM
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subtitle: ''
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text: |-
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Boot-up screen.\
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The BASIC interpreter was close to the one of the future Casio pocket computers. It was the first version allowing to call up to 9 independant programs stored in the same RAM area, through the keys P0 to P9 of the numeric keypad.
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image: /media/museum/photos/casio_fx9000p_bootscreen_s1.jpg
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- title: KEYBOARD CLOSE-UP
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subtitle: ''
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text: Although not mechanical, the keyboard had a good feeling and allowed fast typing.
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image: /media/museum/photos/casio_fx9000p_keyboard_s1.jpg
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- title: MEMORY EXPANSION MODULES
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subtitle: ''
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text: Up to four modules could be inserted.
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image: /media/museum/photos/casio_fx9000p_expansionbox_s1.jpg
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- title: REAR CONNECTORS
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subtitle: ''
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text: |-
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The optional OP-2 expansion unit ($1800) provided the FX-9000 with additional I/O ports. From left to right:\
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• Mini-printer connector\
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• I/O port, mainly intended for the floppy drives unit\
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• Graphic parallel printer connector\
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• Tape recorder In, Out, Remote jacks
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Two holes allowed to adjust display contrast and brightness with a srewdriver.
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image: /media/museum/photos/casio_fx9000p_rearside_s1.jpg
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- title: INSIDE
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subtitle: ''
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text: |-
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**(1)** CRT and video electronics\
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**(2)** Expansion cards basket\
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**(3)** Switching power supply unit\
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**(4)** Mainboard
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image: /media/museum/photos/casio_fx9000p_inside_s1.jpg
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- title: MAINBOARD
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subtitle: ''
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text: |-
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**(1)** 4 KB static video RAM (8 x 4044 chips)\
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**(2)** 12 KB ROM (1x2332, 1x2364 chips). Holds the Basic interpreter and I/O routines\
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**(3)** Hitachi HD46505 display controller\
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**(4)** Z80 processor, here a Nec D780C version\
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**(5)** Keyboard connector\
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**(6)** Buzzer
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image: /media/museum/photos/casio_fx9000p_mainboard_s1.jpg
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- title: COMPLETE SYSTEM
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subtitle: ''
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text: Complete system with dual 5.25" 360 KB floppy drive unit and Epson MX-80 graphic printer (Casio rebadged).
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image: /media/museum/photos/casio_fx9000p_compsystem_1.jpg
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- title: USER MANUALS
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subtitle: ''
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text: Spanish version
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image: /media/museum/photos/casio_fx9000p_manuals_s1.jpg
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- title: DUST COVER
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subtitle: ''
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text: ''
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image: /media/museum/photos/casio_fx9000p_dustcover_s1.jpg
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adverts:
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- title: BROCHURE EXTRACT
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subtitle: ''
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text: Thanks to Rui Santos for this picture
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image: /media/museum/pubs/casio_fx9000p_brochure.jpg
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hardware:
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- title: OP1, MP10 AND MEMORY MODULES
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subtitle: ''
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text: |-
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**OP-1** expansion board (left) provided:\
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\- Cassette tape interface\
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\- Graphic printer interface\
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\- Mini printer (FP-10) interface\
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\- I/O bus for OP-2 board and FDD unit\
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\- Clock, calendar, alarm function
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**MP-10** dot-matrix mini printer:\
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\- 20 chars. per line, 2 lines per second.
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Memory modules:\
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\- **C-4K** 4 KB C-MOS RAM\
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\- **C-16K** 16 KB C-MOS RAM\
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\- **D-16K** 16 KB Dynamic RAM\
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\- **E-4K** Basic language expansion ROM #1 for matrix commands\
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\- **E-RFK** Basic language expansion ROM #2 for files control commands.
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image: /media/museum/hardware/casio_fx9000p_expansions_1.jpg
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- title: LARGE VIEW OF THE OP1
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subtitle: ''
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text: ''
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image: /media/museum/hardware/casio_fx9000p_expmodule_s1.jpg
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oc_id: 760
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source:
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url: https://web.archive.org/web/20230608080130/http://www.old-computers.com/museum/computer.asp?c=760
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date: '2023-06-08'
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---
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This is Casio's first small desktop computer, although the company was well known in Japan for its minicomputer and calculators ranges.
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The FX-9000P had a 5.5'' video display and a complete keyboard with calculator style keys. The unit also had four slots for plug-in RAM or ROM modules. The basic model came with 4 KB of RAM. Two RAM modules were available: 16 KB N-MOS RAM which didn't retain information when removed, and 4 KB C-MOS RAM with back-up batteries that stored the information outside the system for three years.
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The CA-BASIC interpreter, located in a 12 KB ROM pack, was very close to the FX-702P pocket calculator one, allowing RAM memory to be shared into 9 separate areas (P0-P9). An optional Extended BASIC was also available.
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An interface unit was available that plugged into the main housing and provide RS232S and printer interfaces, as well as floppy disc capability (2 x 160 KB).
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More info and better pictures needed!
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**Rui M. Dos Santos** experience from Angola:\
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Around 1981, we ordered and received one CASIO FX9000P for tests and trial.\
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This machine arrived at same time the ZX80 and the NEW BRAIN for checking the technology and how things work on PC´s.
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We used the FX9000P for tests and the machine was very nice for home and mathematical use but not for any serious commercial application as no CP/M was available.
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The way CASIO built the unit in modular mode, was, though very smart... One printer interface was available, one FDD interface was available... We could use the basic machine of add later the interfaces and the printers and FDD´s.
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The other nice part on this machine was the memory... It was in plug in cards which kept the all data on them. This way we could store data and programs in multiple cards and use them according to the application. Basic small test applications were made, mainly one full "working clock" with one analogue look.
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