I/O devies can be characterized by - Behaviour : input, output, storage 입력, 출력, 저장공간 - Partner : human or machine 인간, 혹은 기계 - Data rate : bytes/sec, transfers/sec I/O bus connections Bus Types Processor - Memory buses - Short, high speed / 짧고, 속도가 빠르다. - Design is matched to memory organization I/O buses - Longer, allowing multiple connections 길고, 다양한 커넥션이 있음. - Connect to processor - memory bus..