Computermuseum der Fakultät Informatik                              German

PCBs from Casio AS-A, AS-C, AS-L

Manufacturer: Casio
Year:         1970-1972
Technology:   PMOS  HD31.. HD32..

Above the PCBs from the Casio AS-A. Like those from the AS-C in the
middle, they are folded like a book for inserting them in the case.
The only more complex IC is a HD3112, an arithmetic unit (ALU).
The AS-C in the middle is more powerful, the pcb-area has still the 
same size, but it contains significantly less components, including
four large custom ICs from Fairchild with 36 pins.
The even more powerful AS-L needs half of the pcb-area and uses a kind
of microprocessor.

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