Input-output lines {line, input and output} {input line} {output line} connect CPU and device. Direct lines {bit stream} can connect one input or output device to CPU. Leased telephone lines and modems connect one input or output device to CPU. Multiple lines connect to switching network, which connects to CPU. CPU lines {multi-drop line} can have several modems, so CPU polls and selects data. CPU lines {line concentrator} can receive direct and telephone lines, poll them, and send bit-stream packets to CPU.
Mathematical Sciences>Computer Science>Hardware>Input-Output
3-Computer Science-Hardware-Input-Output
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Date Modified: 2022.0224