Today, small computer chips that give instructions via electrical impulses are present in almost all the devices such as cars, televisions, coffee machines, and mobile phones that we use daily. They also control the robots that explore inaccessible areas such as volcanoes. Even on the distant planet of Mars, the exploration vehicle ‘Sojourner’ could be controlled with the help of computers. Nanorobots help doctors in fighting diseases. Without computer chips there would be no CD-ROMs or simulation programs, which are frequently used for training and research purposes.
