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    Activity 2.1

                        1.    Write an algorithm to prepare a cup of tea.
                        2.    Draw a flowchart to display the area of a rectangle.

                        3.    Draw a flowchart to find whether the inputted number is greater than 5 or not.

                      2.2 PYTHON—PROGRAMMING LANGUAGE

                      2.2.1 Python Introduction

                      In the previous section of this chapter, we learnt about the tools and techniques used
                      to develop the structure of a program. These tools, like flowcharts and algorithms, are

                      essential to draw a layout of the solution to the problem. Once the process of designing is
                      completed, now it’s time to convert the structural design into programmatic code that a
                      computer can understand easily. This process is known as coding.

                      Coding  can be  done  in  any programming  language. We will  use Python as a programming
                      language to write code.

                      Python:  Python  is  an  open-source,  high-level  programming  language  which  has  a  simple
                      syntax similar to the English language. Python was created by Guido van Rossum, and first
                      released on February 20, 1991. The language name is not about snakes, but was inspired by
                      the British Comedy Troupe Monty Python’s Flying Circus. Guido Van Rossum is a big fan

                      of Monty Python’s Flying Circus.  Python is used by many big companies like NASA, Google,
                      Nokia, IBM, Netflix, Facebook and Yahoo Maps etc.

                      2.2.2 Python Features
                                                                                                Python is
                      Python  is Popular:  Python  is  a  popular                               Easy to
                      programming language  due to its simple                                  Learn and
                      syntax  and  wide  range  of  applications  in           Python is          Use

                      various fields.                                          Popular                         Python is
                                                                                                                 Free
                      Python     is   Interpreted:  Python  is  an
                      interpreted     programming       language.    An                         Python

                      interpreter  is  a  converter  program  that              Python         Features
                      converts  a  high-level  language  into  machine       supports GUI                      Python is
                      language, one statement at a time.                     Programming                      Interpreted
                                                                                                               Language
                      Python is Free: Python is freely available to                            Python is
                      download, use, distribute and modify. Python                             Portable
                      is an open-source programming language.

                                                                                        Fig 2.3: Python Features

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