Rubuta ci gaba don wannan sakin layi - Rashin kwakwalwan kwamfuta yawanci yakan faru ne lokacin da akwai wasu canje-canje na zamantakewa ko na zahiri wanda ke hana wasu kwakwalwan kwamfuta daga samarwa cikin adadi mai yawa don biyan buƙata. Wani mummunan yanayin karancin kwakwalwan kwamfuta ya faru a 1988 bayan yarjejeniya tsakanin masana'antun kwakwalwan kwamfuta na Amurka da Japan ya haifar da raguwar samarwa. Canzawa zuwa sababbin hanyoyin samarwa kuma yana haifar da karancin kwakwalwan kwamfuta kamar yadda ba a gina sabbin masana'antu da sauri don biyan buƙatun sabbin kwakwalwan kwamfuta. Misali shi ne karancin kwakwalwan kwamfutar hannu a shekarar 1999, wani kuma ya kasance a lokacin da aka rarraba wasu nau'ikan kwakwalwan kwamfuta a shekarar 2004. Girgizar kasa ta 2011 a Japan
ya kai ga wani lokaci lokacin da yake da wuya a source dukan sassa da ake bukata domin daban-daban tsarin.