COMPUTER FUNDAMENTALS

COMPUTER HISTORY AND EVOLUTION

DEVELOPMENT OF COMPUTERS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A manual aid to calculating that consists of beads or disks that can be moved up and down on a series of sticks or strings within a usually wooden frame. It has a roman and Asian Version
A
Napier’s Bone
B
Slide Rule
C
Abacus
D
Pascaline
Explanation: 

Detailed explanation-1: -The abacus (plural abaci or abacuses), also called a counting frame, is a calculating tool which has been used since ancient times.

Detailed explanation-2: -ABACUS is a wooden frame consisting of rows of holding horizontal wires and beads in those wires. These beads are in the wires. ABACUS was used by Ancient Greeks and Romans for calculations.

Detailed explanation-3: -Abacus is a simple tool or a hardware used for performing rapid arithmetic calculations. Calculation based on abacus was invented in the ancient times and now widely used as a brain development programme. It consists of a rectangular frame holding a number of vertically arranged rods, on which beads slide up and down.

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