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K > KOSMOS > CP1 / Computer Praxis   


KOSMOS
CP1 / Computer Praxis

Little is known about this german training kit...

The Computer is programmed with simple numbers for adding, running loops and so on, but it's not possible to program the cpu directly.

Chriz tells us :
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).
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.


NAME  CP1 / Computer Praxis
MANUFACTURER  Kosmos
TYPE  Home Computer
ORIGIN  Germany
YEAR  ? 1980
BUILT IN LANGUAGE  Machine code
KEYBOARD  Membrane keyboard, 57 keys
CPU  8049 (8-bit)
SPEED  6 Mhz
CO-PROCESSOR  8155 (I/O)
RAM  256 bytes
ROM  Unknown
TEXT MODES  Small LED display
GRAPHIC MODES  None
COLORS  None
SOUND  None
POWER SUPPLY  External PSU, 8-14v

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