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8                                Introduction to



                                                            Programming











                     Let’s surf

                      Ø  Computer Languages                          Ø  Language Translator
                      Ø  Python                                      Ø  Features of Python
                      Ø  Installing Python                           Ø  Programming in Python
                      Ø   nput and Output                            Ø  Variables in Python
                        I
                      Ø   Data Types                                 Ø  Comments in Python
                      Ø   Operators                                  Ø  Precedence of Operators
                      Ø   Some More Programs



                                                                                           21 st
                  Let’s PLug-in                                                         Century   #Critical Thinking
                                                                                          Skills
                    State whether the following statements are true or false.
                    1.    Flowchart is a set of instructions that can be followed to perform a specific
                       task, workflow or process.                                                     __________
                    2.    An algorithm is a set of steps in a sequential manner to solve a problem or
                       to complete a task.                                                            __________
                    3.   Flowcharts are used in analysing, designing, documenting or managing a

                       process or program in various fields.                                          __________




                 We have already learnt that computers follow certain steps to perform any task and when we perform
                 a sequence of steps to solve any problem, it is called an algorithm. Let us now learn about computer

                 languages used to develop programs.

                        COMPUTER LANGUAGES


                 To communicate  with  computers,  we need  some special  languages  which are called  computer
                 languages or programming languages. A computer language is the medium by which instructions
                 are transmitted to the computer to perform a specific task. It is a set of words, symbols and codes

                 that the computer can understand. It is used to write computer programs. A computer program is
                 a set of instructions written in a programming language. The process of writing a program is called
                 programming. People who write programs are called programmers.




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