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WORD                        DEFINITION

                Margins                     Space provided to the left, right, top and/or bottom of a page of
                                            text or data.

                Menu                        A  screen  listing  commands  of  action  or  alternatives  to  lead  the
                                            user through an interactive program.

                Menu-driven                 A  Program  interface  where  the  user  is  provided  with  a  list  of
                Interface                   operations.

                Merge                       The combination of two or more files on the basis of common field
                                            (key field).

                MICR                        Magnetic Ink Character Recognition.

                MIDI                        Musical  Instrument  Digital  Interface.  A  standard  for  representing
                                            musical information in a digital format.

                Microcomputer               A  computer  based  on  a  microprocessor.  See  definition  of
                                            microprocessor below.

                Microfiche                  An output medium consisting of microfilm sheets.  Very high density
                                            storage can be attained using this method of storage.

                Microprocessor              A single  chip  which  contains  the  arithmetic/logic  unit  (ALU)  and
                                            the control unit (CU).

                Modem                       Acronym  for  modulator-demodulator.  A  device  that  converts
                                            signals from  analogue  to  digital  and  vice  versa.  A  modem allows
                                            computers  t o  exchange information through telephones lines.

                Monitor                     A television-like device used to display data.

                Mouse                       An  input  device  that  controls  the  movement  of  the  cursor.
                                            The  cursor moves in response to the movement of the mouse on a
                                            flat surface.

                Multiprocessing             The   ability   of   a   computer   to   execute   programs   on   two or
                                            more   processors simultaneously.  The  program  is  distributed  over
                                            several processors.

                Multitasking                The concurrent execution (at the same time) of two or more related
                                            tasks. A group of cooperating tasks is executed simultaneously to
                                            achieve a common goal.

                Narrowband                  A term used to describe a technology that provides bandwidth that
                                            is less than or equal to that provided by ordinary telephone lines.
                                            That is, 64 kilobits per second or less.

                Online                      The term is used to describe peripheral devices under the control of




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