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Video based question                                                                 Scan the
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                       Watch the video and answer the question.
                          Which device used gears, dials and a series of rotating numbered wheels?







                    LAB ACTIVITY                                                                       Subject Enrichment


                    Visit your computer lab and perform the following actions:
                    ▶   Open Word 2010 and type the given paragraph.


                         MARK-I (The First Electro-Mechanical Powered Computer)

                         In 1944,  Prof.  Howard Aikens built  the  first electro-mechanical  computer  named
                         Mark-I. It used punched cards and a typewriter for input and output. Mark-I was
                         much more reliable than early electronic computers.
                         ENIAC—The First Electronic Computer

                         Electronic  Numerical  Integrator  And  Computer,  was the first electronic  general
                         purpose  digital  computer built  in 1946  by  John  Mauchly and  Presper  Eckert. It
                         contained over 18,000 vacuum tubes and was 1000 times faster than Mark-I. ENIAC
                         consumed almost 200 kW of power.






                                                                                                         Critical Thinking
                     FUN ACTIVITY

                    Find any four words related to the chapter in the grid.
                                       Q    E    Y    U    O    B    H    D    Q    O    P    M


                                       V    A    C    U    U    M    T    U    B     E   S    A

                                       C    B    N    Q    T    L    J    H    Z    V    V    B

                                       Q    R    O    B    V    C    X    Z    Q     L   A    A

                                        T   G    V    X    Q    U    O    K     J    S   H    C

                                       M    A    C     I   N    T    O    S    H     I   K    U

                                       Q     F   C    B    A    Z    N W        T   Q     L   S

                                       Z    T    R    A    N    S     I   S     T   O    R     E






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