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    Mind Boggler

                                                                                                      21 st
                     A.  Competency-based questions.                                               Century   #Technology Literacy
                                                                                                     Skills
                         1.   Maria is working on her computer and notices that the CPU is performing
                             calculations and comparing data. She learns that the CPU has three parts:

                             the ALU, the MU and the CU. Which part of the CPU performs calculations?

                         2.  A computer takes input from the keyboard, processes the data with the CPU
                             and displays the output on a monitor. In some cases, the result is printed on
                             paper. Which device is used to print the result on paper?

                                                                                                      21 st
                     B.   Fill in the boxes.                                                       Century   #Technology Literacy
                                                                                                     Skills

                                  INPUT                                                                   OUTPUT
                          1.

                                 20, 25, +                             20 + 25

                                                                      PROCESS

                          2.
                                 45, 35, –                             45 – 35

                                                                                                         21 st
                     C.   Write Input, Process and Output under the pictures below.                   Century   #Critical Thinking
                                                                                                        Skills

                                 Dialing number of             Connecting to                 Talking to your

                                     your friend                   network                         friend

                                    .........................    .........................     .........................

                                                                                               A Computer System         15

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