COMPUTER FUNDAMENTALS

COMPUTER HISTORY AND EVOLUTION

DEVELOPMENT OF COMPUTERS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A device that consists of beads divided into two parts which were removed on the rods of the two parts
A
Computer
B
Abacus
C
Jacquard Loom
D
Leibnitz’s calculator
Explanation: 

Detailed explanation-1: -The abacus is divided into the upper and the lower part by a horizontal bar called the Beam. The beads in the lower part are the Lower Beads or the Earth Beads.

Detailed explanation-2: -A horizontal crossbar perpendicular to the rods separates the abacus into two unequal parts. The beads above the crossbar are known as heaven beads, and those below the crossbar are called earth beads. The numerical value of each bead depends on its location in the abacus.

Detailed explanation-3: -The abacus is a device, usually of wood (romans made them out of metal and they are made of plastic in modern times), having a frame that holds rods with freely-sliding beads mounted on them.

There is 1 question to complete.