| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an easily-upgradable computer which can be upgraded at a reduced cost. SOLUTION: A central processing unit(CPU) board 1 includer a printed circuit board 14, on which a central processing unit(CPU) 11 to be upgraded, a jump setting part 13 where the switching state of a jump is set so that a clock signal matching with the specification of the central processing unit can be supplied, and a central processing unit side connector 12 are mounted by a user, is removably attached to a main board 2 through the central processing unit side connector 12 and a main side connector 21.</p> |
