There is therefore nothing new in the idea of parallelprogramming, but its application to computers. Theauthor cannot believe that there will be any insuperabledifficulty in extending it to computers. It is not to beexpected that the necessary programming techniques willbe worked out overnight. Much experimenting remains tobe done. After all, the techniques that are commonlyused in programming today were only won at the cost ofconsiderable toil several years ago. In fact the advent ofparallel programming may do something to revive thepioneering spirit in programming which seems at thepresent to be degenerating into a rather dull and routineoccupation