and installing new hardware often involved configuring motherboard DIP switches and trying to figure out what “IRQ” and “DMA” means.
That part is about IBM PC architecture more than it is about computers in general, including personal computers of that time.
EDIT: I wonder, why all the downvotes, this is just true, look at Macs of that time. I’m not saying interrupts themselves are or a concept of DMA itself is.
That part is about IBM PC architecture more than it is about computers in general, including personal computers of that time.
EDIT: I wonder, why all the downvotes, this is just true, look at Macs of that time. I’m not saying interrupts themselves are or a concept of DMA itself is.