Apple II Parallel Printer Interface Card
|Apple II Parallel Printer Interface Card|
|Manufacturer||Apple Computer, Inc.|
|Compatibility||II, II+, IIe, IIGS|
The Apple II Parallel Printer Interface Card was one of the first interface cards sold for the Apple ][. Before this card became available, the most common way to get printed output from the Apple II was to hook up a teletype terminal to the game port and use the teletype driver listed in the "Red Book." The Parallel Printer Interface Card allowed the Apple ][ to use of a wide variety of printers. Since there was not really a standard for parallel printer interfacing at the time, the card has a jumper block (at the bottom right) which could be rewired to accommodate the handshaking signals expected by printers of different manufacturers. Instructions for doing this, as well as making the interface cables for different printers are included in the manual. The manual also includes a schematic of the card and a commented firmware listing, with the heading "PRINTER CARD 1 FIRMWARE, WOZ 11/1/77"
Read more about the Apple II Parallel Interface card and other early interface cards at Steven Weyhrich's Apple II History site.