HISTORICAL DEVELOPMENT OF COMPUTERS
EARLY METHODS OF COUNTING BODY COUNTING Fingers, toes and feet. The fingers and toes were used for counting and keeping track of days, while the feet were used to measure areas, such as land. COLLECTION COUNTING A collection of smaller objects were used to correspond with the objects counted. For example, a shepherd would keep a count of his sheep by keeping the same number of pebbles. A collection of shells, pearls, elephant teeth, sticks, or even coconuts could be used. TALLY STICK A tally stick is any piece of wood, bone, or object on which notches could be cut. Each notch corresponds to an object being counted. With tally sticks, only a small piece of wood or bone needed to be carried around for keeping track of the numbers of objects. KNOTTED STRING Knotted strings were used in the same way as tally sticks. LIMITATION OF EARLY COUNTING AND CALCULATING DEVICES They could not be used to count large numbers. The results/output could not be stored. They consumed a lot of time. The ope
