yann64andClaude Opus 5.5
3eeabe9649
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
80 lines
2.5 KiB
Markdown
80 lines
2.5 KiB
Markdown
---
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title: Kemitron Naja
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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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- Brazil
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years:
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- '1984'
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cpus:
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- Z80A
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params:
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name: Naja
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company: /companies/kemitron
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company_name: Kemitron
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specs:
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- label: NAME
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value: Naja
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- label: MANUFACTURER
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value: Kemitron
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- label: TYPE
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value: Professional Computer
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- label: ORIGIN
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value: Brazil
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- label: YEAR
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value: ? 1984
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- label: BUILT IN LANGUAGE
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value: Basic Level II
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- label: KEYBOARD
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value: QWERTY keyboard with numeric keyboard, 65 keys, auto-repeat, portuguese special characters
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- label: CPU
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value: Z80A
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- label: SPEED
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value: 2,1 Mhz / 3,6 Mhz (software switchable)
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- label: RAM
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value: 48 kb (up to 64k for CP/M)
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- label: ROM
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value: 16 kb
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- label: TEXT MODES
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value: 16 x 32, 16 x 64
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- label: GRAPHIC MODES
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value: 192 x 64, 256 x 192
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- label: COLORS
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value: Monochrome built-in monitor
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- label: SOUND
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value: Beeper
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- label: I/O PORTS
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value: Parallel port, 6 expansion slots, tape interface (500 and 1500 bauds), video output
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- label: BUILT IN MEDIA
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value: Up to four optional 5''1/4 disk-drives (163 kb)
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- label: OS
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value: NajaDOS (NewDOS 80), CP/M optional
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- label: POWER SUPPLY
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value: Built-in PSU
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- label: PERIPHERALS
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value: 12'' monochrome monitor (green), 4 disk-drives interface, 4Mhz addon
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comments:
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- author: Cristiano (Brazil)
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date: Tuesday 9th December 2014
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text: This response might be a little late but yes, it is hardware-compatible with the TRS-80. I used to use authentic Radio Shack 5 1/4"disk drives connected to a Naja. I don''t remember if it needed an add-on board$ probably it did, though.
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- author: Umberto (Brasil)
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date: Monday 27th May 2013
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text: I have one model of this, an I would like to know if this model is compatible in hardware with the TRS, I mean the disk drive.
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oc_id: 536
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source:
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url: https://web.archive.org/web/20230606202438/http://www.old-computers.com/museum/computer.asp?c=536
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date: '2023-06-06'
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---
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This is a brasilian [Tandy TRS-80 Model III](/museum/tandy-radio-shack-trs-80-model-iii/) compatible system.
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It didn't sell well as the CP-500 was a too popular TRS-80 compatible system in Brazil.
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In 1985, a new model named **Naja 800** was marketed. It had a 14 Kb EPROM, 128 Kb RAM, built-in monitor, 70 keys keyboard with numeric keypad and a hard-disk.
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**Sources :**\
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[Computadores Brasileiros](http://pagina.de/brcomp)\
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[Clube Old Bits](http://orbita.starmedia.com/~cobit/)
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