<span>Financial transactions were one of the first purposes of computers. This is where "ticker tapes" came from; early computers were used to keep track of how stocks were performing. Computers in early days used large mainframe systems and punch cards to keep track of this type of data.</span>
The answer to your question is The grade of a metric bolt is designated by the number stamped on the head of the bolt.
<em>=</em><em> </em><em>Option</em><em> </em><em>b</em><em> </em><em>Minicomputer ..........</em>
