Page 108 - Touchpad_Plus_V3.2_Class 7
P. 108

Binary Representation of Information

                  Binary code is the most basic form of data that a computer can directly interpret. Computers
                  use binary code, composed of 1s and 0s, to store and process data. These 1s and 0s represent
                  electrical signals: ON for 1 and OFF for 0. For instance, the number 5 is stored as 0101 in binary.

                  Binary numbers can also represent text characters through the American Standard Code for
                  Information Interchange (ASCII). For example, the binary code for the ASCII uppercase letter 'A'
                  is 1000001.
                   Clickipedia



                    ASCII is made up of 128 symbols  in the character  set. These symbols  consist of letters
                    (both uppercase and lowercase), numbers, punctuation marks, special characters and control
                    characters.


                      CONDITIONS IN A PROGRAM

                  While writing a program, we need to make certain decisions based on the logic of the program.
                  Such situations are called conditions. Conditional statements are used in a program to instruct the
                  computer to make a decision. The result of a condition will always be either True or False.


                                                                  Start






                                                               IF (Condition)
                                             True             to be checked            False

                                         Statements inside IF              Statements inside ELSE
                                          block will execute                  block will execute




                                                                  Stop

                  if-then-else

                  The  program  executes  the  statements  written
                  inside  the  IF  block  when  the  condition  is  True.  If   Monarch butterflies migrate thou-
                                                                              sands of miles by using environmental
                  the condition is False, the statements written inside
                                                                               cues and internal compasses, similar
                  the else block will be executed. A block refers to a
                                                                              to navigation algorithms that use data
                  section of code that is grouped together.
                                                                                 and maps to find optimal routes.










               106      Plus (Ver. 3.2)-VII
   103   104   105   106   107   108   109   110   111   112   113