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PDA

                                       A  Personal  Digital  Assistant  (PDA)  is  a  handheld  computer  with  a
                                       touchscreen that helps organise daily tasks such as schedules, calendars,
                                       and contacts. It comes with a pen-like stylus for input and can also accept
                                       handwritten input directly on the touchscreen.


                 Smartwatch

                 A smartwatch is a wearable computing device that fits on your wrist. It offers

                 the basic functions of a traditional watch and includes advanced features like
                 Internet connectivity, mobile apps and the ability to make phone calls.
                                             Gaming Consoles

                                             A gaming console or a video game console, is  a device designed
                                             specifically  for  playing  video  games.  It  connects  to  a  television,
                                             allowing  you  to  play  games on  the  TV screen.  Popular  examples

                                             include the PlayStation, Xbox and Nintendo Switch.
                    COMPUTER LANGUAGES


                 A computer doesn't understand instructions in English or any other human language. We use
                 programming languages to communicate with computers.
                 A programming language is a set of words, symbols, and codes used to give instructions to the
                 computer so it can perform specific tasks. It is also used to write computer programs, i.e. set of

                 instructions written in a programming language.
                 The process of writing a program is called programming, and the people who write programs
                 are known as programmers. There are numerous programming languages worldwide. Some

                 languages were developed for specific computers; others were developed for specific uses, such
                 as scientific or business applications.
                 Computer languages are classified into two major categories:


                                                    Computer Languages






                         Low-Level Language                                   High-Level Language






                      Machine             Assembly        Third Generation    Fourth-Generation         Natural
                   Language (1GL)      Language (2GL)      Language (3GL)       Language (4GL)      Language (5GL)







                                                               Categories of Computers and Computer Languages    11
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