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There are two types of modems: internal and
                 external. An internal modem is built inside the
                 CPU box/cabinet, similar to the motherboard. An
                 external modem is a separate device connected
                 to the computer via a USB port and usually has
                 small indicator lights.

                 Ports

                 A port is a slot on the motherboard where you connect various computer components, such
                 as a keyboard, mouse, monitor, etc. Different types of ports on the motherboard allow you to
                 connect both internal and external devices. Here are some common ones:

                 Some of them are as follows:

                    Universal Serial Bus (USB) Port: It is also known as standard connection
                    interface, it is used to connect USB devices and supply them with power. It
                    is commonly used for connecting devices like mouse and keyboard to the
                    computer.



                                 Ethernet Port: This port connects the network cable to the computer, providing
                                Internet and network access.

                    VGA Port: The Video Graphics Array (VGA) port connects monitors using
                    analog video signals. It has holes that correspond to the pins on the VGA
                    connector. VGA is known for lower image quality compared to modern
                    digital connections.

                                         HDMI  Port:  The  High-Definition  Multimedia  Interface  (HDMI)  port
                                        connects devices with high-definition video and audio signals. It supports
                                        digital signals, offering superior image and sound quality compared to
                                        analog ports like VGA.

                     Serial Port: It is also called a communication port, it transfers data one bit
                    at a time in a sequence. It uses pins to connect to the computer and was
                    commonly used for connecting modems.

                                                   Parallel  Port: It is similar to a serial port,  but  instead of
                                                   transferring  data  one bit at a time, it transfers  multiple bits
                                                   simultaneously. Parallel ports are used for connecting devices
                                                   that need high-speed data transfer, such as printers.

                    PS/2 Port: It was used for connecting keyboard and mouse but has largely
                    been replaced by USB ports.


                                          Audio Port: This port connects external audio devices such as speakers,
                                         headphones, and microphones to the computer.







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