Like input-output symbols, process boxes have a single line connecting it to the previous flowchart step and a single line leading to the next one. A flowchart may contain any number of process boxes.

Computer control uses computers to manage devices. It offers high accuracy and reprogrammability. Systems involve input, processing, and output. Flowcharts plan sequences.

Flowchart diagrams include count, compare, ... Bit patterns in flowcharts represent the binary states of input and output devices, ... Useful flowchart symbols. Image caption, Start.