Refer to hardware double buffering (Figure below) and explain the effect of buffering on the runtime of the process if the process is I/O-bound and requests characters at a much higher rate than the device can provide them. What is the effect if the process is compute-bound and rarely requests characters from the device?

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Process Process Process Controller Controller Controller Data Device Device Device Process Reads b, Controller Reads b;+1 Process Reads b-1 Controller Reads b; Unbuffered (c) (b) (a)