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    TECHIPEDIA

                                (THE COMPUTER TIMELINE)

                                      Hello Children,  today  we will  learn  about  blocks  that are
                                      used to create projects in Microsoft Makecode.

                     EVOLUTION OF COMPUTERS

                     The modern computer has a long history of evolution. There have been major developments

                     in the field of computers since their invention.

                     The evolution of computers is a result of man’s search for fast and accurate calculating
                     devices. Some of the early calculation devices such as the Abacus, Napier’s bones, Pascaline
                     calculator  and Difference Engine have  played a  crucial  role  in  laying the  foundation  of
                     present-day computers. Let us discuss them in detail.

                     Abacus

                     In earlier times, people used bones, stones, and
                     pebbles to count and calculate. However, calculating
                     bigger numbers was a tough task through these

                     objects. To calculate bigger numbers, China invented
                     the first calculating device called the abacus.

                     Abacus consists of a frame that has rods with beads sliding through it. Calculations were
                     done by sliding these beads on the abacus.

                                                Napier’s Bones
                                                John Napier, a Scottish mathematician, created a manually-

                                                operated calculating device in  1617. This device used a set of
                                                rods with numbers written on them. These rods were carved out
                                                from bones, metals, woods or ivory. Napier's bones was named
                                                after the name of the scientist.

                                                                                      Techipedia (The Computer Timeline)  105

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