A Personal Digital Assistant (PDA) na'urar lantarki ce mai hannu wanda ke aiki azaman mai tsarawa na sirri ko wayar hannu mai iyawar intanet. Yawanci ya haɗa da fasali kamar kalanda, littafin adireshi, lissafin ɗawainiya, da software na ɗaukar bayanai, da kuma ikon haɗawa da intanit da gudanar da aikace-aikace daban-daban. Kalmar PDA ta zama ƙasa da gama gari tun lokacin da aka yi amfani da wayoyin hannu da yawa, waɗanda galibi suna da irin wannan aiki amma sun fi dacewa da ƙarfi.