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   Tap: Quickly touch the screen to select an item, open an app, or activate a link. It functions similarly to
                   clicking with a mouse but on your touchscreen.
                                          Tap and hold: Hold your finger on the screen to reveal additional options or move
                                         items around, analogous to right-clicking with a mouse.

                                          Pinch:  Place  two  fingers  on  the  screen  and  move  them  closer  together  or
                                         apart to zoom in or out on maps, photos, or web pages, adjusting the view size
                                         accordingly.

                                         Swipe:  Slide  your  finger  to  the  right,  left,  up,  or  down  on  the  screen  to  switch
                                         between screens or navigate through content, resembling flipping through pages
                                         in a book.
                   Drag: Hold your finger on the screen and move it across to select text, rearrange icons, or smoothly scroll
                   through pages.
                   Double tap: Quickly tap twice on the screen to zoom in on a picture or text, making it larger and easier to
                   view details.



                 SESSION             4   Parts of a Computer and Peripherals


                 A computer system is a machine designed to store information,
                 retrieve it as needed,  and perform calculations and logical
                 operations to produce useful results. It consists of three main
                 components: the input unit, the Central Processing Unit (CPU),
                 and the output unit. In desktop computers, these components
                 are separate. The input unit includes devices like keyboards for
                 entering data and instructions.
                 The CPU acts as the computer’s brain, with its control unit
                 managing instructions, Arithmetic and Logic Unit performing
                 calculations, and Memory unit temporarily storing data. The
                 output unit, such as the monitor, displays results in a format that users can see and understand.
                 Laptops integrate all these components into a single device. Devices like keyboards and screens, connect
                 to the computer using ports. This setup allows computers to handle tasks ranging from simple data
                 entry to complex calculations, presenting results that users can interact with effectively. Fundamentally,
                 a computer system operates with the help of both Hardware and Software. These components work
                 together seamlessly to enable various functions and operations, enhancing the computer’s usability and
                 versatility.

                   HARDWARE
                 Hardware is the physical parts of a computer system that you can touch and see. It includes the CPU, handling
                 calculations and tasks.  Memory (RAM) helps  the computer remember things while it’s  working. Storage
                 devices store all the computer’s files and data. Input devices like keyboards and mice let us interact with

                 the computer, while output devices like monitors and printers show us what the computer is doing. The
                 motherboard connects all these parts together so they can work together smoothly. Together, these hardware
                 components enable computers to do everything from playing games to helping with schoolwork.




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