Computer History Back in ancient times people used to use there fingers to count. Ten became the basis of number systems for everybody because of 10 fingers and 10 toes. When they ran out of fingers and toes to count on they used stones and scratches in trees to store and record information. Later somebody invented the abacus. The abacus is still in use today in many Asian countries. Some people that use the abacus are as …showed first 75 words of 1435 total…

…showed last 75 words of 1435 total…