Basic HTML Version

|  | Table of Contents |  | View Full Version

Page 15 - 2606_PlugGPT_C6_Flipbook
P. 15

    Gesture Recognition Camera

                     A gesture recognition  camera is a motion  input device.  Motion
                     input lets the user guide the on-screen elements using air gestures.
                     Air gestures involve moving your body or a handheld input device
                     through the air.  With motion input, a device containing a camera
                     detects your gestures and then converts them to a digital signal
                     that is sent to a computer or game device. For example, gamers can pull their arm back to throw
                     a javelin in the game.

                                         Barcode Reader

                                         A barcode reader or barcode scanner is an electronic device, used for reading
                                         printed barcodes. Barcode readers consist of a light source, a lens and a light
                                         sensor that help them scan these codes.

                     Optical Mark Reader (OMR)

                     Optical Mark Reader is an input device used for capturing
                     human-marked  data  in document  forms such as tests
                     and surveys. OMR  is  used  in schools,  businesses,  and
                     healthcare  agencies  for data  input  processes  and  to
                     reduce input errors.

                                                  Optical Character Reader (OCR)
                                                  Optical Character Reader is used to carry out a mechanical or
                                                  electronic translation of handwritten, typewritten or printed text

                                                  into machine-encoded text. It is widely used to convert books and
                                                  documents into electronic files. OCR can also be attached to scanners
                                                  and mobile phones.

                     Magnetic Ink Character Reader (MICR)
                     Magnetic Ink Character Reader is an input device that reads special

                     characters  that  are printed  using  special  magnetic  ink  on cheques
                     like  cheque  number, bank  code  and branch code.  MICRs scan this
                     information and are thus capable of sorting cheques.

                                            PROCESSING DEVICE
                                            The Central Processing Unit is the processing device of a computer. It is also
                                            known as the  brain of the computer. It performs all the calculations and
                                            processes data into information. It receives input from input devices,

                                            processes them, and sends the processed result to the output unit. A CPU
                                            consists of three units.

                                                                                             Fundamentals of Computer  13

| 10 11 12 13 14 15 16 17 18 19 20 |