I know that in general only one device can transmit over the bus at once, but if they are all memory devices, can they act as one? I have four 256x8 chips, which I think means that I have 256 cells which can store 8 bits (1 byte). So how would I express the total memory? 256 cells * 4 = 1024 cells, but I am not sure whether or not the answer is 1024x8 or 1024x32. I am leaning towards 1024x8 because I don't think that more than one device can trasmit over the data bus at once, but I am not certain now that I know that all the devices are memory devices.