[limoce]

Is it limited to up to 6 memory-mapped redstone signals? I think it would be cool if we can manipulate a matrix of redstone lamps as a large display.

[zeta0134]

In the original open computers the limiting factor was the interface between the mod block and the outside world, 6 sides on that block correspond to 6 signals. For a large array as proposed you can network many mod blocks together behind the display, giving you access to many more "sides" to emit signals from.

Whether that's made it into this variant is unclear, I haven't messed around with it. In theory it should be possible though.