![]() Although the new controller chips were more capable than the older ones used on the 8-bit Apple II, telecommunications programs written for those older Apples wouldn’t work. Apple IIGS upgrade – Photo credit: unknownīecause the engineers wanted to make the II GS capable of connecting to an AppleTalk network, the serial ports they planned were based on a different communications controller chip than was used in the older Super Serial Card and the Apple IIc serial controller. ![]() (AppleTalk was the network protocol that Apple had designed originally for use with the Macintosh). They allocated serial ports to slots 1 and 2, the classic 80-column firmware to slot 3, the mouse controller to slot 4, a Smartport controller to slot 5, a 5.25 inch disk controller to slot 6, and AppleTalk capability to slot 7. Taking the cue from their experience with the Apple IIc, they included as built-in features the peripherals that most users would want to use. Other features Apple engineers added to make the Apple II GS a next generation computer included a built-in clock, slot space for internal expansion cards, and the electronic equivalents of seven more expansion cards.
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