Comment by dhosek

I remember the annoyance a lot of people had with the non-sequential layout of text/graphics memory on the Apple ][ (thanks to Woz’s clever hacks to reduce chip count), but when writing assembly code to access screen locations, it turned out that it was actually easier to deal with the somewhat weird arrangement of bytes than it would have if everything were sequentially arranged in memory. Those little 8-byte gaps every three (non-consecutive) rows made calculating row starts much simpler.