[posted and mailed] Chris Merrill wrote in news:Q2FHa.62719$nr.5057902@twister.southeast.rr.com: > Scott Alfter wrote: >> On a II/II+/IIe/IIGS, you also have the 16-pin joystick port inside >> the computer. This gives you 4 digital outputs, 3 digital inputs, >> and 4 analog (resistance-only) inputs. > > any idea what are the other 5 pins are used for? pins on game connector (from GS ref manual) 1 5 Volts 2 Switch input 0 3 Switch input 1 4 Switch input 2 5 5 Volt pullup (on GS) Strobe on Apple //e, II 6 Paddle input 0 7 Paddle input 2 8 Ground 9 Switch input 3 10 Paddle input 1 11 Paddle input 3 12 Digital output 3 13 Digital output 2 14 Digital output 1 15 Digital output 0 16 No connection see also http://www.umich.edu/~archive/apple2/misc/hardware/motherboard.ii.txt