Patent ID: 7298609

Claim:
A computer, including a casing forming an outer appearance and having a main board attaching surface to which a main board is attached, comprising: a main board supporting unit provided on the main board attaching surface to support the main board; a holder having a plurality of locks, slidably combined to the main board attaching surface, and preventing the main board from moving, the holder comprising: a main body having the locks respectively formed in opposite sides thereof, a pair of first grips upwardly extended from each lock and forcing the pair of locks to move toward and away from each other, and a holding part provided at an end of the main body between the pair of first grips to wedge one edge of the main board between the holding part and the main board attaching surface using a downward force; and a guide formed on the main board attaching surface at a position spaced from the main board to guide the holder, the lock being locked to the guide.