Some of the advantages of using robots in the operating room is that a robot may be able to “see” via video devices and to “hear” through microphones using speech recognition software. Robots can hold endoscopes and other instruments without becoming tired or shaky—unlike humans who are liable to becoming tired. Robots are used to scale down the surgeon’s motions. Some surgeons report that this makes their hands “rocky steady,” making surgery on small delicate areas such as the eye safer. With the help of feedback devices, robot can be able to determine the proper pressure and tension needed to manipulate a particular object. Robot can be able to compare tissue density and thus “decide” whether tissue is normal or a tumor by remembering its “pressure signature.” Robots will also be able to palpate tissue.