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6,654 pages: 1,289 machines, 702 software, 460 companies, 64 history, 17 articles, 59 fun. 4,336 media files so far; references to files not downloaded yet are left out. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
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Claude Opus 5.5
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title: HINO ELECTRONICS CEFUCOM 21 / Multipurpose SLAP Computer
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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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- '1983'
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cpus:
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- 2 x Sharp LH0080A - Z80A-CPU-D
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params:
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name: CEFUCOM 21 / Multipurpose SLAP Computer
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image: /media/museum/photos/hino-electronics_cefucom-21_1.jpg
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company: /companies/hino-electronics
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company_name: HINO ELECTRONICS
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specs:
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- label: NAME
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value: CEFUCOM 21 / Multipurpose SLAP Computer
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- label: MANUFACTURER
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value: Hino Electronics
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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: '1983'
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- label: BUILT IN LANGUAGE
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value: CEFUCOM Basic v1.0
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- label: KEYBOARD
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value: QWERTY, calculator type, 65 keys, 4 function keys, 4 arrow keys
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- label: CPU
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value: 2 x Sharp LH0080A - Z80A-CPU-D
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- label: SPEED
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value: 4 MHz
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- label: CO-PROCESSOR
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value: Motorola MC-6847 Video Display Generator, 2 x Sharp LH0081A - Z80A-PIO-D (parallel input output controller), 2 x Sharp LH0082A - Z80A-CTC-D (counter and time controller), General Instruments AY-3-8910
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- label: RAM
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value: DRAM 48KB + CRAM 4KB
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- label: VRAM
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value: 6 KB
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- label: ROM
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value: 58 KB
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- label: TEXT MODES
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value: 16 x 16 / 32 x 16
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- label: GRAPHIC MODES
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value: 64 x 48 (8 colors) / 192 x 128 (4 colors) / 256 x 192 (2 colors)
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- label: COLORS
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value: '9'
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- label: SOUND
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value: General Instruments AY-3-8910 (3 voices, 8 octaves PSG)
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- label: SIZE / WEIGHT
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value: 210 × 520 × 485 mm / 10 Kg
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- label: I/O PORTS
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value: Video output (cinch composite), TV out (RF cinch), Centronic printer port, 2x DB9 Atari type joystick connectors, Audio LINE OUT, Audio MIC, Audio AUX IN, Audio PHONES, Coupler (DIN8), cartridge slot
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- label: BUILT IN MEDIA
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value: Tape recorder
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- label: POWER SUPPLY
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value: Built-in
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tabs:
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- photos
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- links
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photos:
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- title: THE CEFUCOM 21
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subtitle: ''
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text: ''
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image: /media/museum/photos/hino-electronics_cefucom-21_1%5B1%5D.jpg
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- title: ANOTHER ANGLE
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subtitle: ''
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text: Picture courtesy of rhodblog.wordpress.com
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image: null
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- title: FRONT VIEW
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subtitle: ''
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text: ''
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image: /media/museum/photos/hino-electronics_cefucom-21_2.jpg
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- title: LEFT VIEW
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subtitle: ''
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text: Picture courtesy of rhodblog.wordpress.com
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image: null
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- title: KEYBOARD
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subtitle: ''
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text: This is exactly a Sanyo PHC-25 keyboard
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image: /media/museum/photos/hino-electronics_cefucom-21_keyboard_1.jpg
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- title: CLOSE-UP
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subtitle: ''
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text: Picture courtesy of www.vieuxordis.com
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image: /media/museum/photos/hino-electronics_cefucom-21_3.jpg
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- title: 'CLOSE-UP #2'
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subtitle: ''
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text: Picture courtesy of www.vieuxordis.com
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image: /media/museum/photos/hino-electronics_cefucom-21_4.jpg
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- title: LEDS AND CONTROLS
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subtitle: ''
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text: |-
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Above the keyboard are a set of buttons used to interact with the lessons (buttons 1 to 8) and also to manually control the tape deck (RECORD, PLAY, REWIND, F.FWD, STOP, PAUSE). There are also buttons and switches to control the built-in clock and alarm option. There is also a serie of LED indicators used to show various informations such which MODE the system is in, or the progress of the study/lessons.
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Picture courtesy of rhodblog.wordpress.com
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image: null
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- title: SYSTEM SWITCHED ON
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subtitle: ''
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text: Picture courtesy of retrogamer.seesaa.net
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image: /media/museum/photos/hino-electronics_cefucom-21_poweron_1.jpg
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- title: REAR
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subtitle: ''
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text: Picture courtesy of rhodblog.wordpress.com
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image: null
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- title: REAR CONNECTORS
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subtitle: ''
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text: |-
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\- 2 DB9 "Atari type" joystick connectors\
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\- RESET button\
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\- Coupler (DIN8), used for a Modem ?!\
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\- RS232 Centronics printer port\
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\- Composite video output\
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\- RF TV video output
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Picture courtesy of www.vieuxordis.com
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image: /media/museum/photos/hino-electronics_cefucom-21_connectors.jpg
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- title: LEFT CONNECTORS
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subtitle: ''
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text: |-
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These are the classic connectors associated with the built-in tape deck.
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Notice the CAPSULE LOADING trap door next to the connectors.
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Picture courtesy of www.vieuxordis.com
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image: /media/museum/photos/hino-electronics_cefucom-21_left-connectors.jpg
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- title: CAPSULES'S DISPLAY
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subtitle: ''
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text: Picture courtesy of rhodblog.wordpress.com
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image: null
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- title: CAPSULE LOADING TRAP
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subtitle: ''
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text: |-
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This is where you load the huge capsules delivered with each lessons. These capsules are like mechanical books that reveals visuals on the dedicated display window on the left of the system.
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Picture courtesy of www.vieuxordis.com
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image: /media/museum/photos/hino-electronics_cefucom-21_capsule-slot.jpg
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- title: INSIDE THE CAPSULE TRAP
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subtitle: ''
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text: Picture courtesy of www.vieuxordis.com
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image: /media/museum/photos/hino-electronics_cefucom-21_capsule-slot-inside.jpg
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- title: BUILT-IN TAPE DECK
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subtitle: ''
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text: Picture courtesy of www.vieuxordis.com
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image: /media/museum/photos/hino-electronics_cefucom-21_tape-deck.jpg
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- title: POWER SECTION
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subtitle: ''
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text: |-
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The power supply of the system can be used to power the coupler/modem, the printer and the video monitor !
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Picture courtesy of www.vieuxordis.com
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image: /media/museum/photos/hino-electronics_cefucom-21_powers.jpg
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- title: MAIN MOTHERBOARD (PCU-1)
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subtitle: ''
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text: |-
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There are several chips on this board:\
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\- one Sharp LH0080A - Z80A-CPU-D\
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\- one Sharp LH0081A - Z80A-PIO-D\
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\- two Sharp LH0082A - Z80A-CTC-D\
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\- three NEC 8255A\
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\- SRM20256 32KB SRAM\
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\- 32KB EPROM\
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\- RICOH's RP5C01 which is an IC for time management alarm function
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Picture courtesy of www.retropc.net
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image: null
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- title: MOTHERBOARD DETAIL
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subtitle: ''
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text: Picture courtesy of www.vieuxordis.com
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image: /media/museum/photos/hino-electronics_cefucom-21_mobo1.jpg
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- title: 'MOTHERBOARD DETAIL #2'
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subtitle: ''
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text: Picture courtesy of www.vieuxordis.com
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image: /media/museum/photos/hino-electronics_cefucom-21_mobo2.jpg
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- title: SECOND ELECTRONIC BOARD (MCU02)
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subtitle: ''
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text: |-
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This board has also many components, including:\
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\- Sharp LH0080A - Z80A-CPU-A\
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\- Sharp LH0081A - Z80A-PIO-D\
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\- General Instruments AY-3-8910\
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\- Motorola MC6847P\
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\- 3 x HM6116P-4\
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\- EPROM MBM2764-20
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Picture courtesy of www.retropc.net
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image: null
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- title: THIRD ELECTRONIC BOARD
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subtitle: ''
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text: Picture courtesy of www.retropc.net
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image: null
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- title: INSIDE THE SYSTEM
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subtitle: ''
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text: Picture courtesy of www.retropc.net
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image: null
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- title: SCREENSHOTS
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subtitle: ''
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text: Pictures courtesy of retrogamer.seesaa.net
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image: /media/museum/photos/hino-electronics_cefucom-21_screenshots.jpg
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- title: START MENU
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subtitle: ''
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text: |-
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When the computer is switched on, the following menu is displayed on the screen:\
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1 - See/Modify the planning of your lessons\
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2 - Study a lesson\
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3 - BASIC\
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4 - audio recording/reading mode
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image: null
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- title: A CAPSULE
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subtitle: ''
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text: |-
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This is a 'poor) picture of a "capsule". Teaching programs were delivered with "capsules" which look like a book in a box. When this box is inserted into the (huge) dedicated slot, the visuals contained in the capsule are synchronized with the corresponding data program to be displayed behind the small window. When the visual changes, a black shutter hide what's happening behind, and then reveals the new visual. This is very impressive to watch.
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Pictures courtesy of retrogamer.seesaa.net
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image: null
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- title: 'SLIDE #1 - FROM THE FAMOUS CAPSULE'
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subtitle: ''
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text: Pictures courtesy of retrogamer.seesaa.net
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image: null
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- title: 'SLIDE #2 - FROM THE FAMOUS CAPSULE'
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subtitle: ''
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text: Pictures courtesy of retrogamer.seesaa.net
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image: null
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links:
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- title: retrogamer.seesaa.net
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url: http://retrogamer.seesaa.net/article/38099582.html
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text: Some information here in Japanese
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- title: Rhod's Collection Blog
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url: https://rhodblog.wordpress.com/2020/07/23/y-auctions-195-cefucom-21/
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text: Some more pictures of CEFUCOM-21 here, from an old Yahoo Japan auction
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- title: www.retropc.net
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url: http://www.retropc.net/mm/archives/1149
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text: Some interesting information here with nice pictures
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- title: www.vieuxordis.com
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url: http://www.vieuxordis.com/musee/cefucom/
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text: Some info and picture here by Olivier Aichelbaum
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oc_id: 1320
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source:
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url: https://web.archive.org/web/20230605034657/http://www.old-computers.com/museum/computer.asp?c=1320
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date: '2023-06-05'
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---
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The CEFUCOM 21 is a very strange computer ! It was built around a [Sanyo PHC-25](/museum/sanyo-phc-25/) to be used as a computer-aided teaching and learning system (to learn English for example).
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A tape recorder is built-in the left side of the plastic case. The tape deck can read data on one channel and audio on the other. This feature is used by the system to output audio instructions at the same time as its loads data programs into the computer. The tape deck can also be used independently from the computer (see below). Classic connectors associated with the tape deck are to be found on the left of the case: Phones, Line out, Mic and Aux In. Below the capsules' window display (see below), there are two sliders used to control the volume and the balance.
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But the most incredible part is the built-in display on the left of the case, just below the tape deck. On might think that this is a LCD screen, but it's not. It's only a plastic transparent window to show what is behind. Teaching programs were delivered with "capsules" which look like a book in a box. When this box is inserted into the (huge) dedicated slot, the visuals contained in the capsule are synchronized with the corresponding data program to be displayed behind the small window. When the visual changes, a black shutter hide what's happening behind, and then reveals the new visual. This is very impressive to watch !
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The CEFUCOM 21 is thus a very innovative system mixing electro-mechanical-controlled visuals, with real computed display, computing data from the tape and real audio instructions coming out also from the tape ! A real multimedia system in 1983.
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The system can also be used as a normal computer and is BASIC compatible with the Sanyo PHC-25 and NEC PC-6000. Under CEFUCOM BASIC 1.0, a bit less than 32KB RAM is available for the user.
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When the computer is switched on, the following menu is displayed on the screen:\
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1 - See/Modify the planning of your lessons\
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2 - Study a lesson\
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3 - BASIC\
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4 - audio recording/reading mode
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Option 1 is not clear... Does it show you information about your lessons schedules and progressions, or can it be used to create new lessons ?\
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Option 2 will ask you to insert the correct capsule into the computer.\
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Option 3 must be chosen to use the system as a normal computer, like a PHC-25 on steroids.\
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Option 4 is intended to use the tape deck alone to listen to music or record something (trough the AUX IN or MIC connectors on the left of the computer).
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The audio features which were optional through the PSG-01 expansion box for the Sanyo PHC-25 are he built-in the system, offering 3 voices of 8 octaves, as well as the two DB9 "Atari compatible" joysticks connectors.
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Above the keyboard are a set of buttons used to interact with the lessons (buttons 1 to 8) and also to manually control the tape deck (RECORD, PLAY, REWIND, F.FWD, STOP, PAUSE). There are also buttons and switches to control the built-in clock and alarm option. There is also a serie of LED indicators used to show various informations such which MODE the system is in, or the progress of the study/lessons.
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There is also a ROM CARTRIDGE slot, but its purpose is unknown. Was it intended for something special, or never used ? The Sanyo PHC-25 didn't have a cartridge slot, but the NEC PC-6001, which is very close technically, did...
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Another curiosity is the DIN8 plug found at the back of the system, labeled "COUPLER". Did they intend to connect the CEFUCOM-21 to the outside world though a modem ? It's incredible to think that the developpers tried to put every features they could in this beast in 1983 !
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<table> <tr> <td></td> <td>We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.</td> <td></td> </tr> </table>
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