This paper is based on a systematic literature review relevant to classroom integration of computer technologies in schools. The purpose of this review is to gain an accumulated view of uses, impacts and implementations of 1:1 computing initiatives for school children. Unlike previous reviews this study is not limited to certain countries or certain technologies. It includes any devices used in 1:1 computing (not just the PC), and schools worldwide. The paper investigates the themes being researched regarding 1:1 use in schools as well as exhibits some which are not yet being researched but should be important to investigate. The study finds mixed results including positive, negative and no-effects. The findings of this review are expected to be useful both for academics as well as policy makers for gaining insights for further research and successful educational policy reforms.