desultory
adj
going from one thing to another, without a definite plan or purpose; unmethodical 不连贯的; 漫无计划或目的的; 无条理的
desultory reading, work 漫无目的的阅读、 漫无计划的工作
desultory attempts to help 毫无计划的随意帮助.
Considering how recent these developments are, it is even more remarkable that as long ago as the 1960s, an Englishman, Leon Bagrit, was able to predict some of the uses of computers which we know today.