Object acquisition and selection are two important functions performed in most of the human computer interaction systems. Various techniques are devised by the researchers to perform these operations and the selection of a combination of object acquisition and selection techniques along with a feedback mechanism for a particular interaction system has become a research issue, especially, when the user of these systems are disabled persons. This paper presents a review on object acquisition and selection techniques used in humancomputer interaction systems. The review process reveals that the existing object acquisition and selection techniques are not free from the problems of cursor instability, accuracy, response time, Midas-Touch problem, user fatigue, and the cost of commercially available eyegaze trackers. It has also been observed that most of the interaction systems are available with mouse left-click feature. But, if we want to completely imitate the functions of a computer mouse then the interaction systems should provide all the mouse analogous operations including left click, right click, double click, drag & drop, cursor control, and page scrolling.