Today she talked about IRQs. There are common ones. You can identify a section of the shared memory. and the devices use it to transfer data to the main memory.
She then talked about DMA-Direct memory access. She covered a Base memory Bios. I got to see what DIP switches and Jumpers look like too. They do not just flip on and off like a light switch. Then we talked about the ISA expansion Bus Slot. It looks exactly as it sounds. this is either a 32 bit o64 bit bus. One can have up to 5 slots per system.
Then she said that there is a new standard called PCIe. this is newer and uses serial communication. This was a very interesting lesson.
Stopping Point- end of disk 2.
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