CARDCO was a computer peripheral company during the 1980s in Wichita, Kansas, United States. CARDCO was well known in the Commodore 64 and Commodore VIC-20 community because of advertisements in numerous issues of Compute! magazine and availability of their products at large retailers.
There were severe shortcomings of early Commodore printers, so CARDCO created the Card Print A (C/?A) printer interface that emulated Commodore printers by converting the Commodore serial interface to a Centronics parallel printer interface to allow numerous 3rd-party printers to be connected to a Commodore 64 or VIC-20.
CARDCO released additional enhancements, including a model with RS-232 serial output, and shipped over two million total printer interfaces.
- Compute! on the Internet Archive
- "CARDCO Card Print A (C/?A) - Printer Interface For The Commodore 64 and VIC-20". COMPUTE Magazine (34): 251. March 1983.