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Tech
                                                                                                                                                                                                           Funda
                                                                                                                                                                                                                           Use Alt + Tab keys to move
                                                                                                                                                                                                                           between the open windows.



                 So, one or more windows can be opened at a single point of time like:
                 •  A web browser like Google Chrome with different web pages for research

                 •  PowerPoint for presentation
                 •  File Explorer
                 •  Word for writing notes
                 We can also listen  to some  music  while
                 doing  all  this  work.  All  these  applications
                 would  be  opened  in separate  windows.
                 If  we  want,  we  can  display  two  or  more
                 application windows side by side for easier
                 work.

                 In fact, Windows provides us with many options for displaying the application windows while
                 we are working with multiple applications. We can right-click on the empty area of the Taskbar
                 to display those options. We can select Show windows side by side option to display all the
                 windows on the screen simultaneously.


                  i +  DIFFERENT FILE FORMATS

                 You must have observed that whatever we do on a computer is saved as a file. But every file stores
                 a different type of data, like a Word file stores text, a video file contains multimedia, an audio file
                 contains audio and a picture file stores pictures. So, how does a computer differentiate between
                 different types of files? The file type is also called the file format. All the files that contain different
                 types of data are saved in different file formats. The file format can be determined by the file

                 extension. A file extension is a group of three or more characters used to identify the type
                 of a file. It helps an operating system recognise the different types of files. The file formats of
                 different types of files depend upon the software used for creating those files. While saving a file,
                 software adds a file name to specify its format. Some of the most commonly used file extension
                 or file formats are:

                 •   JPEG: It stands for Joint Photographic Experts Group. It is used to store images. The file
                   extension of an image file can be .jpeg, .jpg, or .jpe.
                 •   MP4: It is used to store multimedia files. It stores video, movies and still images. A file with
                   an MP4 extension is an MPEG-4 video file.

                 •   MP3: It is an audio file format that is used to store music files. MPEG stands for Moving
                   Pictures Expert Group. The file extension of an audio file is .mp3.

                 •   DOCX: It is used to save Word documents. Store images, text, pictures, and tables. The file
                   extension of the Word file is .docx.
                 •   XLSX: It is used to store Excel spreadsheets. An XLSX file format stores tables in the form of

                   rows and columns, images, charts, pictures, formulas, etc. The extension of the Excel file is .xlsx.
                 •   PPTX: It is used to store PowerPoint presentations. A PowerPoint presentation saves the data
                   in the form of slides. The extension of a presentation file is .pptx.



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                                                                          File Management—Organisation of Data
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