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
67 lines
2.1 KiB
Markdown
67 lines
2.1 KiB
Markdown
---
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title: KOSMOS CP1 / Computer Praxis
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categories:
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- Computers
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types:
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- Home Computer
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origins:
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- Germany
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years:
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- '1980'
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cpus:
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- '8049'
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params:
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name: CP1 / Computer Praxis
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image: /media/museum/photos/kosmos_z80-training-kit_1.jpg
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company: /companies/kosmos
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company_name: KOSMOS
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specs:
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- label: NAME
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value: CP1 / Computer Praxis
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- label: MANUFACTURER
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value: Kosmos
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- label: TYPE
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value: Home Computer
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- label: ORIGIN
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value: Germany
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- label: YEAR
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value: ? 1980
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- label: BUILT IN LANGUAGE
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value: Machine code
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- label: KEYBOARD
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value: Membrane keyboard, 57 keys
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- label: CPU
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value: 8049 (8-bit)
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- label: SPEED
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value: 6 Mhz
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- label: CO-PROCESSOR
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value: 8155 (I/O)
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- label: RAM
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value: 256 bytes
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- label: ROM
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value: Unknown
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- label: TEXT MODES
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value: Small LED display
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- label: GRAPHIC MODES
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value: None
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- label: COLORS
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value: None
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- label: SOUND
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value: None
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- label: POWER SUPPLY
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value: External PSU, 8-14v
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forum_thread: 488
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oc_id: 494
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source:
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url: https://web.archive.org/web/20221203195223/http://www.old-computers.com/museum/computer.asp?c=494
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date: '2022-12-03'
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---
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Little is known about this german training kit...
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The Computer is programmed with simple numbers for adding, running loops and so on, but it's not possible to program the cpu directly.
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**Chriz** tells us :\
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I own a kosmos cp1 and it's still functioning. It has a very good manual which is kind of a machine language course for the cp1-inctructions. The cpu was a 8049 (8bit) with 2048 byte rom and 128 byte ram integrated (6 Mhz) and the memory+io chip a 8155 with 256 byte ram and 22 bit io. The 256 byte of 8155 ram give you 128 storage cells for the cp1-instructions (like 04.056 which means load absolute 56 into accumulator).\
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You could control electronics and fishertechnik with this little computer, even model trains. There was an io-interface (8 relays, 8 inputs), a cassette interface for loading and saving programs, an extension interface (another 8155 gives you +128 storage cells and 16 ios) and another io-interface with 8 leds and transistor drivers.
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