71. Modern Computer are very reliable but they are not
72. What is the name of the display feature that highlights are of the screen which requiresoperator attention?
73. Personal computers use a number of chips mounted on a main circuit boar
74. In most IBM PCs, the CPU, the device drives, memory expansion slots and active componentsare mounted on a single board. What is the name of this board?
75. What is meant by a dedicated computer?
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