The use of spooler programs and Hardware allows personal computer operators to do the processing work at the same time a printing operation is in progress.
Myers 1978 identifies seven levels of cohesion .which level of cohesion may be defined as followed, the output from one element in the component serves as input for some other elements.
Which used to generate accurate time delays and can be used for other timing application such as a real time clock an event counter a digital one shot a square wave generator and a complex wave form generator.
