Haɗin ƙwaƙwalwar ajiya yana nufin tsarin karantawa ko rubuta bayanan da aka adana a ƙwaƙwalwar ajiyar kwamfuta. Lokacin da shirin ke buƙatar samun damar shiga bayanan da aka adana a cikin ƙwaƙwalwar ajiya, ya aika da buƙatu zuwa ga mai sarrafa ƙwaƙwalwar ajiyar kwamfuta, wanda zai dawo da bayanan daga ƙwaƙwalwar ajiyar kuma ya mayar da su zuwa shirin. Hakazalika, lokacin da shirin ke buƙatar adana bayanai a cikin ƙwaƙwalwar ajiya, yana aika buƙatu zuwa ga mai sarrafa ƙwaƙwalwar ajiya, wanda ke rubuta bayanan zuwa wurin da ya dace a ƙwaƙwalwar ajiya. Samun damar ƙwaƙwalwar ajiya muhimmin aiki ne a cikin gine-ginen kwamfuta kuma yana da mahimmanci ga aikin tsarin kwamfuta.