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
198 lines
7.0 KiB
Markdown
198 lines
7.0 KiB
Markdown
---
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title: Seequa CHAMELEON
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categories:
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- Computers
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types:
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- Transportable
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origins:
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- U.S.A.
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years:
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- '1983'
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cpus:
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- Zilog Z80
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params:
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name: CHAMELEON
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image: /media/museum/photos/seequa_chameleon_system_1.jpg
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company: /companies/seequa
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company_name: Seequa
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specs:
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- label: NAME
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value: CHAMELEON
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- label: MANUFACTURER
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value: Seequa
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- label: TYPE
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value: Transportable
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- label: ORIGIN
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value: U.S.A.
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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: None
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- label: KEYBOARD
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value: QWERTY full-stroke 83 keys with numeric keypad and 10 seperate function keys
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- label: CPU
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value: Zilog Z80 + Intel 8088
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- label: SPEED
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value: 2.5 MHz (Z80) - 5 MHz (8088)
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- label: CO-PROCESSOR
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value: 8087 (optional)
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- label: RAM
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value: 128 KB to 256 KB on board. Up to 640 KB with expansion board
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- label: VRAM
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value: 16 KB
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- label: ROM
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value: 16 KB (up to 48 KB)
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- label: TEXT MODES
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value: |-
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9 inch Green Phosphor Monitor\
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80 x 25, 40 x 25
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- label: GRAPHIC MODES
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value: 320 x 200 with 4 colours - 640 x 200 in black & white
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- label: COLORS
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value: 16 (text mode)
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- label: SOUND
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value: Beeper
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- label: SIZE / WEIGHT
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value: 12.7 Kg
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- label: I/O PORTS
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value: Centronics, RS232c, Composite video
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- label: BUILT IN MEDIA
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value: 2 x 5.25'' 320 KB disk-drives
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- label: OS
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value: MS DOS and CP/M
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- label: POWER SUPPLY
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value: 2 x built-in switching power supply units
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- label: PERIPHERALS
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value: Expansion box, IEEE-488 port
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- label: PRICE
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value: $1995
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tabs:
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- photos
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- adverts
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- docs
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forum_thread: 121
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photos:
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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/seequa_chameleon_system_2.jpg
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- title: CLOSED
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subtitle: ''
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text: A small, robust but heavy suitcase
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image: /media/museum/photos/seequa_chameleon_closed_1.jpg
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- title: BACK
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subtitle: ''
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text: ''
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image: /media/museum/photos/seequa_chameleon_back_1.jpg
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- title: 'CLOSE-UP #1'
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subtitle: ''
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text: ''
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image: /media/museum/photos/seequa_chameleon_keybcloseup_1.jpg
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- title: 'CLOSE-UP #2'
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subtitle: ''
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text: ''
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image: /media/museum/photos/seequa_chameleon_system_3.jpg
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- title: REAR CONNECTORS
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subtitle: ''
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text: |-
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**(1)** Serial connector\
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**(2)** Parallel connector\
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**(3)** Serial number #4742!\
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**(4)** Composite video output. A color monitor could be used but displayed colours only in text mode.\
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**(5)** Keyboard DIN plug\
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**(6)** Brightness adjustment
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image: /media/museum/photos/seequa_chameleon_back_2.jpg
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- title: UNCOVERED
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subtitle: ''
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text: Only one logic board covers the frame and participates in its rigidity!
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image: /media/museum/photos/seequa_chameleon_inside_2.jpg
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- title: PERIPHERAL COMPONENTS
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subtitle: ''
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text: |-
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**(1)** Fan\
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**(2)** Floppy disc drives magnetic shield\
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**(3)** Serial and parallel connectors\
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**(4)** The Chameleon uses two switching power supplies almost identical\
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**(5)** Video electronic board is mounted around the tube.
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image: /media/museum/photos/seequa_chameleon_inside_1.jpg
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- title: MOTHERBOARD EXPLAINED
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subtitle: ''
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text: |-
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**(1)** 2 x 8 KB 2764 BIOS ROM's. Four sockets are free for 32 KB optional ROM\
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**(2)** 8087 coprocessor socket\
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**(3)** 8088 processor. Here a NEC version\
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**(4)** Zilog Z80-A processor\
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**(5)** Intel 8353 chip used for sound generation and memory refresh\
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**(6)** Intel 8237 chip. 4-channel Direct Memory Access controller\
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**(7)** 4 KB Video text RAM (2 x 6116 chips)\
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**(8)** 6845 video management chip (graphic and text modes)\
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**(9)** Serial and parallel flat cables\
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**(10)** Optional GPIB (IEEE-488) chip sockets\
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**(11)** Floppy disc flat cable\
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**(12)** Floppy disc controller chip (NEC D765AC)\
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**(13)** Intel 8274 serial controller chip. Sockets are available for a second serial port\
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**(14)** First 128 KB RAM bank (18 x soldered 4164 chips)\
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**(15)** Second 128 KB RAM bank (socketted chips)\
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**(16)** 16 KB graphic video RAM (2 x 4416 chips)
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image: /media/museum/photos/seequa_chameleon_motherboard_1.jpg
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- title: INSIDE
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subtitle: ''
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text: No technical interest, but I like this picture...
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image: /media/museum/photos/seequa_chameleon_motherboard_2.jpg
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- title: USER'S MANUAL
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subtitle: ''
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text: A really complete manual with clear and detailed information about hardware and software Chameleon features.
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image: /media/museum/photos/seequa_chameleon_manual_1.jpg
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- title: DESKTOP VERSIONS
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subtitle: ''
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text: PC and XT versions used same dual processor motherboard as the portable model.
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image: /media/museum/photos/seequa_chameleon_pcxt_1.jpg
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adverts:
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- title: SEEQUA CHAMELEON BROCHURE
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subtitle: ''
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text: ''
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image: /media/museum/pubs/seequa_chameleon_leaflet_1.jpg
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- title: DESKTOP & PORTABLE BROCHURE
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subtitle: ''
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text: ''
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image: /media/museum/pubs/seequa_chameleon_leaflet_2.jpg
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- title: SEEQUA AD (JUN. 83)
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subtitle: ''
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text: ''
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image: /media/museum/pubs/seequa_chameleon_pub_1.jpg
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- title: ADVERT
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subtitle: ''
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text: Thanks to [www.guiguy.com/Schiff/](http://www.guiguy.com/Schiff/) for this picture
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image: /media/museum/pubs/seequa_chameleon_brochure_1.jpg
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docs:
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- title: SEEQUA CHAMELEON USER'S MANUAL
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url: http://issuu.com/ryaninspiron/docs/seequa_chameleon_document
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cover: /media/museum/docs/couvs/seequa_chameleon_doc.jpg
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text: |-
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[**SEEQUA CHAMELEON USER'S MANUAL**](http://issuu.com/ryaninspiron/docs/seequa_chameleon_document)written by Seequa
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compiled/archived by Ryan Morrison\
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type of document : Online reader
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**... READ THE ONLINE VERSION BY CLICKING BELOW :**
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oc_id: 107
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source:
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url: https://web.archive.org/web/20230604043621/http://www.old-computers.com/museum/computer.asp?c=107
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date: '2023-06-04'
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---
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The Seequa Chameleon was one of the first luggable computer that contained both a Z80 and an 8088 processor. So it was capable of running either CP/M or early MS-DOS operating system, hence its name.
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Basic version featured 128 KB of RAM while the "Chameleon Plus" version had 256 KB on board. Built-in 9" cathodic monochrom screen could be replaced by an external color monitor to use the 16-color text mode.The machine was also available with an internal hard disk.
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Seequa also manufactured two desktop versions, PC and XT, of the Chameleon, as well as an obscure version called Chameleon 325 that used the very rare and short-lived Dysan 3.25" floppy disc drive.
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The following software were bundled with the system:\
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\- MS-DOS for the 8088 and CP/M-80 (8 bit OS), CP/M-86 (16 bit OS)\
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\- M Basic-86 for 8088\
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\- G W Basic - Microsoft's Advanced BASIC including graphics\
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\- Perfect Writer - Word Processing for 8088\
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\- Perfect Calc - Spreadsheet Software for 8088\
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\- Perfect Speller - 50,000 word spelling checker for 8088\
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\- Condor I - database management system for 8088
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