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Flash Memory: Flash  Memory is  a small-sized  external storage  device that is  commonly  used in digital
              cameras, mobile phones, MP3 players, etc. It can be plugged through the USB or Fire wire port of a computer
              to fetch or transfer data to a computer.

                Pen/Flash Drive: It is small in size, handy and is a detachable device from
                 which data can be read, copied or transferred from one system to another.
                 It is re-writable and weighs less than 25 gm.

                Nowadays,  pen drives  are the most  commonly  used external storage
                 and data transferring device. It has an attachment slot that can be easily
                 inserted or attached to the computer’s USB (Universal Serial Bus) port.
                                            Memory Stick: Memory Stick is a detachable

                                             ash memory card device that was launched by Sony in 1   . The data stored
                                            in a memory card can be read or written with a memory stick (typically a small
                                            box that connects via USB or some other serial connection).

                                             Memory Stick supports  memory cards  of different storage  capacities  and
                                            helps in faster data transfer speeds.

              Motherboard

              Motherboard is the main circuit board of a computer that lies inside the CPU, to which all the hardware
              devices are connected. It is in the form of a large multilayered printed circuit which contains connectors
              (sockets) for attaching additional devices.
                                                            USB Slot                USB Slot        Keyboard and
                                                                                                    Mouse Slot



                                                                                                    Processor Power
                                                                                                    Control

                                                                                                    SMPS Slot




                          PCI Slot
                                                                                                    Processor


                     Graphics Slot


                    CMOS Battery
                                                                                                    RAM Slot










                                                         Hard Drive Slot  Floppy Drive Slot




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